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COVID 19 Articles

Leipzig’s Hydrogen Garbage Trucks Fail The Tuesday Test

Leipzig’s 16 hydrogen garbage trucks achieved only 45.6% availability after two years of operation, falling short of the 80% rate for conventional vehicles and raising questions about hydrogen’s commercial viability for waste collection.

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The Help That Many Older Americans Need Most

The Help That Many Older Americans Need Most

On a recent Monday, Sandy Guzman, a community health worker in rural Oregon, drove to visit a patient in her 60s in a small city called The Dalles. The patient lived alone, and “really struggles with social isolation,” Guzman said. After a serious fall and subsequent...

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