Marcos Pivetta and Eduardo Geraque

AGRICULTURE

Increasing soy productivity is essential to curbing deforestation

Measures could prevent 5.7 million hectares of vegetation in the Amazon and Cerrado from being converted into cropland over the next 15 years

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ECOLOGY

The land of trees

The continent's rainforests are home to four times as many tree species as Africa’s

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ECOLOGY

Indigenous lands are home to 71% of the 521 known primate species

Apes and monkeys living in areas inhabited by indigenous peoples are at less risk of extinction

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Health

The spread of monkeypox

Cases worldwide increased 20% in one week; Brazil is the country with the third-highest number of infections

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PHOTONICS

Method can be used to encode high-resolution complex images in a laser beam

Researchers from the São Carlos Institute of Physics generated a portrait of a cat using the new technique

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ECOLOGY

Biodiversity of tropical trees is highest in South America

The continent's rainforests are home to four times as many tree species as Africa’s

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BOTANY

Collection from the Dutch Brazil era includes illustrations of almost 200 plants

Among the flora of northeastern Brazil drawn in the seventeenth century are 35 exotic species originating from abroad, such as sunflowers

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COVID-19

With fewer cases and deaths, the pandemic could be entering a new phase

Incidence of the disease appears to be becoming more predictable

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ZOOLOGY

Hibernation delays aging in marmots and encourages sexual maturation in ground squirrels

Studies on the effects of hibernation were carried out by Brazilian researchers in the USA

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Primatology

The name of the monkey

DNA analysis confirms the species of pygmy marmoset given to naturalist Spix by indigenous people in the Amazon two centuries ago

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Geology

The São Francisco sands

The Xique-Xique dunes in Bahia were formed by sand carried from the São Francisco River by the wind over the last 100,00 years

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COVID-19

Cross-infection between species

Humans have transmitted SARS-CoV-2 to animals, at least two of which have passed the virus onto other people

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Physics

From metal to an insulator

Twisting a two-dimensional nanofilm allows an electric current to progressively pass through it

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Biology

Rainforest marsupials

Study suggests opossums emerged in the Amazon about 40 million years ago

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COVID-19

First DNA-based vaccine

India has developed and approved the first COVID-19 vaccine based on DNA technology

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Covid-19

Delta advances

Delta variant threatening control of the COVID-19 pandemic

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Oceanography

The Saga of the Paratethys

The world's largest lake formed 12 million years ago and then disappeared, giving rise to the Caspian and Black Seas

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COVID-19

Mixed protection

Preliminary studies suggest that combining two different vaccines could be useful in the fight against the pandemic

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Medicine

Breathing microplastics

Tiny and potentially harmful polymer particles and fibers found in human lungs

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COVID-19

Limited use

ANVISA authorizes the use of three COVID-19 drugs, but they are expensive and designed only for specific situations

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Biology

The colors and songs of evolution

Varying plumage hues and song patterns lead to the formation of new species in certain bird groups

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Photonics

New light conversion

Miniaturization on a microchip that transforms a type of electromagnetic radiation into two distinct frequencies could reduce the size of laser devices

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Ecology

Lowered immunity

Even modest doses of insecticide make bees more susceptible to bacterial infections and increased mortality

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Ornithology

Where birds came from

Most species in the tropics emerged in extreme environments, such as deserts and mountains, before establishing themselves in other biomes

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Botany

Tropical trees die sooner

Tropical species have average lifespans of 186 years, while temperate species live for an average 322 years, a study on 438 tree species shows

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COVID-19

The era of genetic vaccines

The vaccines from BioNTech/Pfizer and Moderna result from historical investments in messenger RNA technology leading to the creation of new products

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BIOTA - 20 YEARS

A poisonous weave

A spider web commonly found in the Americas is composed of toxins that paralyze and help kill prey

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COVID-19

Stuttering progress

Advanced testing of COVID-19 vaccines continues at an accelerated pace, despite occasional interruptions caused by safety concerns

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Neurosciences

A smell, a response

Mouse brain activates a distinct set of neurons in response to different animal odors

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Nutrition

Digit data

Isotopes in the fingernails reveal information about a person’s diet and can be used to infer their socioeconomic status

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