Catálogo de publicaciones - revistas

<jats:title>Long-term impacts of land dispossession</jats:title> <jats:p> To date, we lack precise estimates of the extent to which Indigenous peoples in parts of North America were dispossessed of their lands and forced to migrate by colonial settlers, as well as how the lands that they were moved into compare to their original lands. Farrell <jats:italic>et al</jats:italic> . constructed a new dataset within the boundaries of the current-day United States and found that Indigenous land density and spread in has been reduced by nearly 99% (see the Perspective by Fixico). The lands to which they were forcibly migrated are more vulnerable to climate change and contain fewer resources. Research and policy implications of these findings are discussed. —TSR </jats:p>

<jats:title>The bat connection</jats:title> <jats:p> The heterogeneity of COVID-19 makes it challenging to predict the course of infection in an individual. Upon virus infection, interferons (IFNs) generate the initial signals for cellular defenses. Knowing that defects in IFN signaling are associated with more severe COVID-19, Wickenhagen <jats:italic>et al</jats:italic> . used IFN-stimulated gene expression screening on human lung cells from which they identified a gene for 2′-5′-oligoadenylate synthetase 1 (OAS1) (see the Perspective by Schoggins). OAS1 stimulates RNase L to inhibit the virus with a surprising degree of specificity, targeting the membranous organelles in which it replicates. In most mammals, OAS1 is attached to membranes by a prenyl group. However, billions of humans do not have the prenylated OAS1 haplotype, including many experiencing severe COVID-19. The same is true for horseshoe bats, prolific sources of betacoronaviruses, because of an ancient retrotransposition event. —CA </jats:p>

<jats:p>Climate change and loss of biological diversity are global challenges, linked to each other and to other socioeconomic and environmental challenges. These interlinkages have been discussed by the Intergovernmental Panel on Climate Change (IPCC) and the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES), valuable references for multilateral negotiations in the United Nations Framework Convention on Climate Change (UNFCCC), whose Conference of the Parties (COP) convenes in November, and the UN Convention on Biological Diversity (CBD), whose COP convened in October. In the past year, in recognition of common challenges and opportunities, the IPCC and IPBES formally collaborated for the first time. Decision-making processes around these complex issues will be more effective if they integrate responses to climate change, biodiversity loss, and human development gaps at various spatial scales: global, regional, national, and local.</jats:p>

<jats:p>European Union countries are holdouts against widespread practice of adding folic acid to flour</jats:p>

<jats:p>Scientists started fewer new research projects in 2020</jats:p>

<jats:p>Study slammed by critic, who has demanded raw data withheld by authors</jats:p>