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Winter wind and solar lulls reveal Europe's need for costly backup power

This summer, record-breaking heat waves in Europe led to extreme stress on the power system, with high evening electricity prices due to air-conditioning demand, insufficient battery storage and outages at thermal and nuclear power plants. Events such as these highlight the challenge of maintaining a reliable power supply during extreme weather.

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Built to last: Hydrogen catalyst operates for 3,000 hours

A research team has developed a highly durable platinum-nickel (PtNi) hydrogen evolution catalyst that suppresses nickel (Ni) leaching through atomic ordering. Nickel leaching is a major cause of performance degradation in catalysts used for anion exchange membrane water electrolysis (AEMWE). The findings are published in the journal Carbon Energy.

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AI-generated ads outperform human designers in live campaign, advantage holds 18 months later

The common belief throughout the marketing and advertising world is that generative AI can produce striking visuals, but it struggles to match the performance and brand discipline of skilled human designers. New research published in the journal Marketing Science challenges that assumption, finding that a carefully designed AI system can outperform visuals created by humans, and it can outperform designs created by another AI model that was optimized solely on the basis of aesthetics.

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When the algorithm determines wages

What happens when companies on digital labor platforms no longer decide for themselves how much to pay their workers, but leave this to learning algorithms? Researchers at TU Darmstadt, Bielefeld University and the UniversitΓ© CΓ΄te d'Azur have demonstrated in computer simulations that, where only a few firms compete with one another, such artificial intelligence (AI) systems can "learn" to set wages at a very low level without communicating with one another or having been programmed to collude.

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Waymo doubles spending on lobbying in robotaxi battle with Uber

Waymo has sharply increased its lobbying spending as it seeks to persuade US regulators to clear a path for fully autonomous taxi services, intensifying its battle with rival Uber over the future of robotaxis.

The Alphabet-owned company spent more than $1 million between April and June on lobbying the federal government, more than double its outlay a year earlier, according to filings. That put Waymo’s spending close to Uber’s and well ahead of rivals including Amazon’s Zoox and Tesla.

The rise in lobbying comes as Waymo and Uber push competing visions for the future of ride-hailing. Waymo wants a faster route to fully driverless commercial services, while Uber is advocating a staggered rollout in which robotaxis operate alongside human drivers.

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Β© Alex Kent, Bloomberg

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Q&A: Promise and perils of agentic AI

Chatbots and large language models can execute a seemingly countless number of tasks, from writing emails and reports to generating code and analyzing data. However, they still primarily act only in response to user prompts and rely on their own predictive models to generate text.

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Neural network approach makes AI uncertainty checks far more efficient

McGill University researchers have developed a more energy-efficient method of building AI systems that are better at measuringβ€”and indicatingβ€”their own uncertainty. This will help users determine when human oversight is needed, when additional data should be collected and when a model is being asked to work beyond the conditions it was trained for, the researchers said.

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As workplace surveillance grows, experts say it's good to know the ways your employer is watching

College administrators read an adjunct professor's comments to students on personal essays. Managers told a pharmacist to spend less time with patients after tracking the number and length of her appointments. Scanners on a warehouse conveyor belt monitored the pace of workers to ensure they inspected hundreds of items per hour.

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Coconut-blend fuel vs. jet fuel: Engines can't tell the difference, but the environment can

With airlines and consumers increasingly concerned about carbon, nitrogen and hydrocarbon emissions, biofuels have emerged as a green alternative. Among these, those made from coconut oil are particularly attractive because they have fatty acid chain lengths similar to the hydrocarbon chain lengths required for jet fuel, suggesting they could make effective fuels with minimal processing.

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