Pew Research Center designed this study to assess the current state of online survey sampling methods – both probability-based and opt-in – and determine their accuracy on general population estimates ...

The study of elemental composition in both coffee and its corresponding soils is pivotal for determining geographical origin, ensuring product authenticity, and assessing potential health impacts.

Particle size distribution (PSD) analysis is a cornerstone of soil science, providing essential insights into soil structure, fertility and its response to environmental change. This analytical field ...