Measurements of physiological and geometrical parameters of the sieve tube system in Ipomoea nil provide strong support for pressure driven mass flow.

Publication bias, in which positive results are preferentially reported by authors and published by journals, can restrict the visibility of evidence against false claims and allow such claims to be canonized inappropriately as facts.

A survey of journals and editors in five areas of research - ecology, economics, medicine, physics and psychology - reveals a range of differences in their approach to peer review.

Strategies to improve public trust in biomedical research are being hindered by a scientific mindset that stifles interest in reform.

The use of Research Resource Identifiers (RRIDs) improves the proper use of cell lines in the biomedical literature.

Establishing a community of 'rigor champions' and building a comprehensive educational platform to teach the principles of rigorous science will help to ensure that the outputs of scientific research remain reliable and robust.

An analysis of 10,395 research publications about COVID-19 that mention at least one human gene reveals that many genes implicated in SARS-CoV-2 infection by genome-wide studies remain unstudied.

The same genes and signaling pathways control the formation of limbs in vertebrates, arthropods and cuttlefish.