How to Read Polls: Margins of Error, Samples, and Framing

Learning to read a survey means understanding margins of error, sampling, weighting, and media framing, with an essential ...
IEEE

A Bearing Fault Diagnosis Method Based on Vibration Signal Extension and Time–Frequency Information Fusion Network Under Small Sample Conditions

Abstract: Due to the limited fault samples, the accuracy of the bearing fault diagnosis model is challenged. Therefore, this article proposes a bearing fault diagnosis method based on vibration signal ...
Nature

Making samples one billion times bigger lets simple microscopes pinpoint amino acids

Stretching protein samples in all directions pulls molecules farther apart, allowing them to be visualized using only light ...