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Tech News
A National Bureau of Economic Research survey found that more than 90 percent of executives reported no impact from AI on their firm's employment over the past three years, and 89 percent saw no gains in labor productivity. Despite this, companies are continuing to cut jobs while citing AI as justification, according to University of Pittsburgh professor Mark Ma.
MIT Technology Review spoke with cognitive scientists comparing how babies and large language models acquire language, finding that infants learn to speak proficiently after hearing only 10 to 30 million words, while LLMs require vastly more data to approach similar fluency. Stanford's Michael C. Frank noted that training a model like GPT-2 on the same word count a toddler hears produces a 'nonsense generator,' not coherent speech.
The University of Chicago's Booth School of Business has introduced a 10-month, primarily online program aimed at preparing executives for chief AI officer roles, priced at $28,000 per student with early-bird discounts. The curriculum spans six modules covering AI readiness assessment, business opportunity identification, governance frameworks, and enterprise-wide deployment strategies. Applications are open for the next cohort starting September 28.
Scientists including Curtin University's Joshua Newton found that spiderwebs collect exceptionally rich environmental DNA from surrounding wildlife, outperforming other passive sampling methods like vegetation swabs, water, and soil in identifying vertebrate species. Because collecting real webs means destroying spider homes, University of Waikato genomicist Angela McGaughran tested synthetic Halloween webs instead, finding they captured DNA from livestock, birds, and even fungal spores just as effectively.
Researchers running UCL's chemistry department fellowship support scheme have published guidance drawn from helping more than 40 early-career researchers win independent fellowships. The advice covers assessing whether a candidate's track record fits a target fellowship, shaping a competitive research proposal, and choosing the right host institution. The authors stress that early planning during a PhD and postdoc, including mapping publication milestones, is critical to building a strong application.
Researchers analyzed nearly half a million brain cells from tissue of 30 deceased individuals, creating a detailed cellular map of the adult hippocampus. The study, published in Nature Medicine, found that people who had depression showed disrupted production of new neurons compared with those without the disorder.
A letter published in Nature responds to an earlier essay noting a class scored 96% on a take-home midterm but only 48.6% on a closed-book final. The authors argue this disparity isn't primarily about students cheating or inadequate proctoring, but reveals that many university assessments test tasks AI tools can now complete faster and better than typical students.
A free interactive tool called 'What's the Risk?' launched in early August, letting users visually compare the risks of vaccines against the diseases they prevent, as well as everyday hazards like car crashes, drowning and lightning strikes. It was built by the University of Minnesota's Center for Infectious Disease Research and Policy alongside Unbiased Science, a public health platform led by scientist Jessica Steier. Currently it covers measles, MMR vaccine and RSV-related products, with plans to expand comparisons over time.
Samantha Brunhaver, an associate professor at Arizona State University, is leading an NSF-funded project examining how engineers develop adaptability on the job. Through interviews with managers, early-career employees, and undergraduates, she found that while adaptability is widely cited as essential, employers rarely define or teach it consistently, and its meaning shifts depending on the industry, from tool turnover in software to regulatory changes in aerospace or biomedical fields.
Scientists at Southern Illinois University Carbondale used CRISPR-modified yeast to convert PET plastic and agricultural waste into proteins, fats, and flavor compounds, which were then 3D-printed into cookie shapes called 'µBites.' The team presented the work at the American Chemical Society meeting in Chicago, though the cookies haven't been tasted yet pending university approval.
Researchers at Kyoto University led by Mitsuaki Kaneko, Shunya Shibata, and Tsunenobu Kimoto built a silicon carbide transistor that operates at 600°C using standard ion implantation, the same doping process used in commercial chip fabs. Their bottom-gate, double-well design narrowed the gap between designed and measured threshold voltage to under 0.1V at 400°C, a sharp improvement from the more than 2V drift seen in conventional layouts, while also curbing substrate leakage as temperatures rise.
A satellite-based analysis led by Xiao-Peng Song and Matthew Hansen at the University of Maryland found that global tree cover increased by roughly 2.24 million square kilometers, an area comparable to Texas and Alaska combined, between 1982 and 2016. The gains, concentrated in temperate, boreal, and subtropical zones, offset major losses in tropical forests caused by deforestation, fire, and drought.