The researchers combined VOD, an indicator of the amount of water in vegetation, with remote sensing data from optical satellites. The innovative strategy described in Remote Sensing provides a more comprehensive understanding of the biomass changes caused by fire.

Scientists used a wild grass trait that inhibits soil microbes from producing environmentally-harmful nitrogen compounds. Widespread use of the new technology could lower global use of fertilizers for wheat crops.

Many patients suffer from a significant decline in immunity lasting for years after they are discharged from hospital. In an article published in the journal Immunity, Brazilian researchers reveal why this happens.

Researchers at UFSCar in Brazil in partnership with University College London (UCL) in the UK analyzed data for 2,294 individuals aged 60 or more who were monitored for eight years. Results were published in the journal Age and Aging.

A study led by Brazilian scientists revealed the biological process used by Xanthomonas to weaken the defenses of plants and discovered a novel class of enzyme that can be used to obtain advanced sugars from agroindustrial waste.

Analysis of fishery data and interviews with artisanal fishers confirmed replacement of large species by others that are less valuable commercially, and 37 species were considered overfished.

One of the most distinctive features of many birds is their colorful plumage, an attribute that scientists have frequently associated with sexual selection because it is often observed in reproductive adults: the flashier their feathers, the more likely the birds are to find a potential mate. However, after looking at over 400 hummingbirds in Panama, Jay Falk, a former pre-doctoral fellow at the Smithsonian Tropical Research Institute (STRI) and the Cornell Lab of Ornithology, suggested another possible explanation.

The study is published in PLOS ONE. Equations suggest viral population variability can be estimated on the basis of epidemiological data.

In a review of the scientific literature, researchers at the Federal University of São Paulo concluded that infection by SARS-CoV-2 during pregnancy can reduce the availability of ACE2, a protein that plays an important part in placental development, control of blood pressure, and the circulatory adaptations required for fetal development.

The result was obtained in a study of 20 volunteers by researchers at São Paulo State University. The treatment is painless and uses a weak current delivered by electrodes placed over specific brain regions.