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 researchers at the Montreal Neurological Institute and Hospital provides insights into the challenges and opportunities involved in adopting an open science policy across an entire patient-oriented academic institution.

Why is the alligator heart so similar to the hearts of birds and mammals?

Staff from the Mayo Clinic in the US and the Karolinska Institute in Sweden describe a joint transatlantic course intended to broaden the horizons of the next generation of researchers in the field of regenerative medicine.

Molecular genetic experiments are revealing how the fly brain generates behavioral responses to visual stimuli.

The availability of almost all articles from toll access journals in the Sci-Hub repository will disrupt scholarly publishing towards more open models.

A simulation study is used to demonstrate how mistakes in identifying the experimental unit and the unit of analysis can lead to incorrect analyses and inappropriate inferences when reporting research studies.

Journals are exploring new approaches to peer review in order to reduce bias, increase transparency and respond to author preferences.