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'A Poor Measure'

H-indices offer poor measures of early-career researchers' productivity and potential, Stanford University's Richard Zare argues in Angewandte Chemie this week. "Just as the IQ number does not capture the creativity and originality of a person's work, the h-index is not a full measure," Zare says. "Some rough correlations do exist, but in judging researchers early in their career, the h-index seems to be a poor measure. It is more a trailing, rather than a leading, indicator of professional success." He adds that while citation-based metrics can speak to the value of a particular publication, "not being highly cited does not mean that someone's work will never have value."

The Scan

Missed Early Cases

A retrospective analysis of blood samples suggests early SARS-CoV-2 infections may have been missed in the US, the New York Times reports.

Limited Journal Editor Diversity

A survey finds low diversity among scientific and medical journal editors, according to The Scientist.

How Much of a Threat?

Science writes that need for a provision aimed at shoring up genomic data security within a new US bill is being questioned.

PNAS Papers on Historic Helicobacter Spread, Brain Development, C. difficile RNAs

In PNAS this week: Helicobacter genetic diversity gives insight into human migrations, gene expression patterns of brain development, and more.