Why a Startup’s Controversial Experiments to Cool the Earth Are on Pause
183 articles from THURSDAY 19.1.2023
China's population is now inexorably shrinking
Make Sunsets, a company behind a recent controversial effort to cool the earth by releasing particles of sulfur dioxide (SO2) into the upper atmosphere to reflect incoming heat, is canceling its upcoming experiments in Mexico, following a rebuke from the Mexican government.
“We have decided not to do launches in Mexico until we come up with a way to collaborate with the Mexican...
Tomato analyzer software reveals phenotypic diversity in New Mexican chile peppers
China's National Bureau of Statistics has confirmed what researchers such as myself have long suspected—that 2022 was the year China's population turned down, the first time that has happened since the great famine brought on by Chinese leader Mao Zedong in 1959-1961.
Simulations and experiments reveal unprecedented detail about water's motion in salt water
New Mexico is one of the largest producers of chile pepper (Capsicum spp.) in the United States, with 51,000 tons of production in 2021 from an area of 8500 acres with average productivity of 6 tons/acres according to the U.S. Department of Agriculture National Agriculture Statistics Service. The average productivity decreased by 25% as the area planted to chile pepper production remained the...
How habanero peppers respond to stress
In salt water solutions, water molecules rapidly move around salt ions at a scale of more than a trillion times a second, according to both experiments and simulations led by scientists at New York University and the Sorbonne.
New strategy uses ionic liquids to change laser colors with ease
Like people, plants have to cope with stress. The impact on humans is well catalogued, but less is known about how stressors—including high salinity and lack of nutrients—affect plants such as habaneros. Now, researchers report in ACS Agricultural Science & Technology that these conditions change the levels of natural compounds in the peppers. The results could have ramifications for growing...
New nanoparticles deliver therapy throughout the brain and edit Alzheimer's gene in mice
Lasers are intense beams of colored light. Depending on their color and other properties, they can scan your groceries, cut through metal, eradicate tumors, and even trigger nuclear fusion. But not every laser color is available with the right properties for a specific job.
Nearly 50-meter laser experiment sets record in university hallway
Gene therapies have the potential to treat neurological disorders like Alzheimer's and Parkinson's diseases, but they face a common barrier—the blood-brain barrier. Now, researchers at the University of Wisconsin-Madison have developed a way to move therapies across the brain's protective membrane to deliver brain-wide therapy with a range of biological medications and treatments.
How ChatGPT robs students of motivation to write and think for themselves
It's not at every university that laser pulses powerful enough to burn paper and skin are sent blazing down a hallway. But that's what happened in UMD's Energy Research Facility, an unremarkable looking building on the northeast corner of campus. If you visit the utilitarian white and gray hall now, it seems like any other university hall—as long as you don't peak behind a cork board and spot...
Discovery of anti-cancer chemistry makes skullcap plant fit for modern medicine
When the company OpenAI launched its new artificial intelligence program, ChatGPT, in late 2022, educators began to worry. ChatGPT could generate text that seemed like a human wrote it. How could teachers detect whether students were using language generated by an AI chatbot to cheat on a writing assignment?
US strengthens organic food protocols to counter fraud
The evolutionary secrets that enable the medicinal herb known as barbed skullcap to produce cancer fighting compounds have been unlocked by a collaboration of UK and Chinese researchers.
Using cancer cells as logic gates to determine what makes them move
The US Department of Agriculture on Thursday unveiled new rules to strengthen oversight of the "organic" label on food, after some significant fraud cases.
Study reveals key aspect of the finely tuned regulation of gene expression
Cancer cells migrate through the body for multiple reasons; some are simply following the flow of a fluid, while others are actively following specific chemical trails. So how do you determine which cells are moving and why? Purdue University researchers have reverse-engineered a cellular signal processing system and used it like a logic gate—a simple computer—to better understand what causes...
New treatment strategy cuts risk of bowel cancer returning by 28%
Your skin cells are clearly different from your brain cells even though they both develop in the same person and carry the same genes. They are different because each cell type expresses a particular set of genes that is different from the ones expressed by the other. This is possible thanks to cellular mechanisms that tightly regulate gene expression.
Rare opportunity to study short-lived volcanic island reveals sulfur-metabolizing microbes
UK trial across three countries finds that giving patients chemotherapy before surgery was more effectiveGiving bowel cancer patients chemotherapy before surgery cuts the risk of it coming back by 28%, according to the results of a trial experts are hailing as “fantastic”.As many as one in three patients diagnosed with the disease see it return after surgery, a figure described as “far too...
Summer heat waves and low oxygen prove deadly for bay scallops as a New York fishery collapses
In 2015, a submarine volcano in the South Pacific erupted, forming the Hunga Tonga Hunga Ha'apai island, destined to a short, seven-year life. A research team led by the University of Colorado Boulder and Cooperative Institute for Research in Environmental Sciences (CIRES) jumped on the rare opportunity to study the early microbial colonizers of a newly formed landmass and to their surprise, the...
Researchers create 2D quantum light source from layered materials
A new study by Stony Brook University researchers published in Global Change Biology demonstrates that warming waters and heat waves have contributed to the loss of an economically and culturally important fishery, the production of bay scallops. As climate change intensifies, heat waves are becoming more and more common across the globe. In the face of such repeated events, animals will...
Professors develop interactive dashboard to drive education decision-making
Recent advances in spontaneous parametric down-conversion (SPDC)-based quantum light sources based on two-dimensional layered materials have been made by a team led by Prof. Ren Xifeng from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences, collaborating with Prof. Qiu Chengwei and Dr. Guo Qiangbing from the National University of Singapore (NUS). The...
A tale of two cities: How we got the history of Calicut wrong (and what we can learn from it)
University of Wyoming College of Education faculty members have published a paper in the journal PLOS ONE describing the development of an interactive dashboard that combines data from the Integrated Postsecondary Education Data System (IPEDS), the U.S. Census Bureau and the Bureau of Labor Statistics.
12-million-year-old whale fossil skull found in Maryland
UniSC's Professor Patrick Nunn and Roselyn Kumar didn't set out to rewrite history.
Light pollution is drowning the starry night sky faster than thought
A whale skull fossil estimated to be some 12 million years old has been found on a beach in the Chesapeake Bay in Maryland, according to a local museum.
Squirrels that gamble win big when it comes to evolutionary fitness
The star pattern Western astronomers call Orion has long drawn our eyes to the night skies. Some
people see it as a cosmic hearth. For the Khoisan people of southern Africa, it’s an archer confronting zebras and a lion. Meanwhile the Carib people of South America see a one-legged hunter named Epietembo. But future generations might wonder what all the...
- 23/1/19 20:15
Imagine overhearing the Powerball lottery winning numbers, but you didn't know when those numbers would be called -- just that at some point in the next 10 years or so, they would be. Despite the financial cost of playing those numbers daily for that period, the payoff is big enough to make it worthwhile.