English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The U.S. Geological Survey operates the National Field Quality Assurance Program to provide qualityassurance reference samples to field personnel who make water-quality field measurements. The program monitors the accuracy and precision of pH, specific conductance, and alkalinity field measurements. This report documents the operational procedures and quality-control techniques used in operating the qualityassurance program.

Standard procedures and quality-control practices for the U.S. Geological Survey National Field Quality Assurance Program from 1982 through 1993