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http://dx.doi.org/10.1126/science.aaw0911 | DOI Listing |
Front Plant Sci
August 2022
High Meadows Environmental Institute, Princeton University, Princeton, NJ, United States.
Fine root density in the soil is a plant functional trait of paramount importance for plant ecology and agriculture. Fine root proliferation by plants involves complex plant strategies that may depend on various abiotic and biotic factors. Concretely, the root tragedy of the commons (RToC) is a behavioral strategy predicted by game theory models in which interacting plants forage for soil resources inefficiently.
View Article and Find Full Text PDFBiol Lett
January 2022
Laboratory of Socioecology and Social Evolution, Department of Biology, KU Leuven, 3000 Leuven, Belgium.
stingless bees display a paradoxical overproduction of queens, which are later eliminated by nest-mate workers. Mechanistically, it was suggested that the monoterpenoid geraniol deposited into newly provisioned cells by adult bees would cause larvae to develop into queens in . This system could be evolutionarily stable if many of these new queens were to leave the nest and parasitize other genetically unrelated colonies nearby, as was shown to occur in a congeneric species Here, we use microsatellite markers to test whether queen overproduction could be a strategy by which adult workers control the caste fate of the developing larvae to export copies of their own genes to the rest of the population via queen parasitism in .
View Article and Find Full Text PDFIntroduction: To understand the policy for the implementation of the overhaul of the vigilance, it was useful to recall the context by revisiting the literature and regulation related to health security and the tragedy of contaminated blood, which was the founding element of the new health institutions. The concept of health security was born with the creation of several national agencies. They have proved their usefulness but remain, however, compartmentalized with a division of competences, in terms of vigilance, distributed between several agencies, in a complex territorial mesh constituting a hindrance to the declaration of undesirable events.
View Article and Find Full Text PDFMicrobes Infect
February 2020
Experimental Neuropathology Unit, Institut Pasteur, 28 rue Dr. Roux, 75015, Paris, France; Service Hospitalo-Universitaire de Neuropathologie, GHU, France; Paris-Psychiatrie NeuroSciences, Université Paris Descartes, France.
Sepsis remains a contemporary threat, and its frequency remains high amongst an aging population. Its definition has been regularly revisited, but the impact of the translational research studying it remains very modest compared to the results seen after the introduction of hygiene and the use of antibiotics. In the past, the main forms of sepsis were hospital gangrene (also known as nosocomial fever or putrid fever) that affected the wounded, and puerperal fever that affected women shortly after delivery.
View Article and Find Full Text PDFGenes Immun
May 2019
Experimental Neuropathology Unit, Institut Pasteur, 28 rue Dr. Roux, 75015, Paris, France.
Sepsis remains a contemporary threat, and its frequency remains high amongst an aging population. Its definition has been regularly revisited, but the impact of the translational research studying it remains very modest compared to the results seen after the introduction of hygiene and the use of antibiotics. In the past, the main forms of sepsis were hospital gangrene (also known as nosocomial fever or putrid fever) that affected the wounded, and puerperal fever that affected women shortly after delivery.
View Article and Find Full Text PDF