Research sheds new light on Antarctic control of global climate

Scientists have made a new discovery that challenges previous understanding of the relationship between the polar Southern Ocean, next to Antarctica, and carbon dioxide levels in the atmosphere. Their findings show that, ...

Engineering cellular function without living cells

Genes in living cells are activated – or not – by proteins called transcription factors. The mechanisms by which these proteins activate certain genes and deactivate others play a fundamental role in many biological processes. ...

Ecosystem responses to dam removal complex, but predictable

In the United States, the removal of dams now outpaces the construction of new ones—with more than 1,400 dams decommissioned since the 1970s—and a new study suggests that the ecosystem effects of dam removal can be predicted.

How plants cope with iron deficiency

Iron is an essential nutrient for plants, animals and also for humans. It is needed for a diverse range of metabolic processes, for example, for photosynthesis and for respiration. If a person is lacking iron, this leads ...

Poxvirus hijacks cell movement to spread infection

Vaccinia virus, a poxvirus closely related to smallpox and monkeypox, tricks cells it has infected into activating their own cell movement mechanism to rapidly spread the virus in cells and mice, according to a new UCL-led ...

Gene "bookmarking" regulates the fate of stem cells

A protein that stays attached on chromosomes during cell division plays a critical role in determining the type of cell that stem cells can become. The discovery, made by EPFL scientists, has significant implications for ...

Bacterial virulence is stimulated by burns

Sepsis constitutes the main cause of disease and death in people suffering from severe burns. This results from the dissemination of pathogens in the body, including Pseudomonas aeruginosa, one of the three bacteria most ...

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