What do we define as urban green space?

When do we define a piece of nature in the city as a park? And when is something a tree or shrub? It may seem obvious, but in scientific literature the definitions vary quite a bit. That makes comparisons difficult. Environmental ...

Chip-scale metamicroscope for high-performance imaging

The microscope effectively expands human eyesight to the microworld. It supports wide applications in scientific research, biomedical diagnosis, industry, and beyond. The ultimate goal is superresolution, yet along the way ...

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