Ancient enzymes show life’s nitrogen signal stayed unchanged for billions of years, helping scientists read early Earth.

As the climate crisis becomes a part of daily life with unprecedented heat waves and cold snaps, technology to effectively remove greenhouse gases is emerging as a critical global challenge. In ...

Oxygen is everywhere on Earth today. But that hasn’t always been the case. Scientists think oxygen only became a lasting part ...

Abstract: Unsupervised segmentation is a potential means to detect the breast tumors from DCE-MRI without using any annotated images, which can provide a coarse prior for several downstream tasks.

Abstract: Tunnel images are affected by the shooting environment, resulting in uneven illumination distribution, local occlusion, and a high amount of noise. To address the overexposure and distortion ...