Science

ZOOLOGY

Solitary sand spiders

Isolated Sicarius populations inhabit Brazil’s Caatinga (semi-arid scrublands) and desert areas of Argentina, Peru and Chile

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NEUROLOGY

Adolescent depression

Heightened reward-related brain activity may predict an increased risk for developing the disorder

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PUBLIC HEALTH

Examining the yellow fever vaccine

Scientific evidence indicates that the fractionated dose produces a protective effect, but there is no consensus about its duration

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physics

When light attracts light

Brazilian researchers show that two photons can couple, exhibiting similar behavior to electron pairs in superconductors

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PHYSICS

The effects of quantum turbulence

Disturbing a cloud of cold rubidium atoms produces a wave phenomenon similar to light

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ENTOMOLOGY

Invisible moths

These very small Insects spend most of their lives as larvae inside stems and leaves

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Botany

Colonization via water

Group of carnivorous plants recognized for being aquatic species originated in Brazil, indicates phylogenetic study

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GENETICS

Accelerated DNA deterioration

Brazilian researchers test male hormone’s ability to alleviate symptoms of rare disease that affects blood cell production

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Health

Another possible cause of autism

Inflammation reduces connections in neurons generated in the lab using cells from the teeth of children with the neurological disorder

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GENETICS

Fighting citrus diseases

Transgenic orange plant is resistant to Xylella fastidiosa

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EPIDEMIOLOGY

From monkeys to people

FIOCRUZ team suggests a sixth form of malaria

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Michael Shermer

Michael Shermer: In favor of reason

American science communicator fights irrational thinking and fundamentalism

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SCIENTIFIC DISSEMINATION

Dancing for science

Brazilian researcher wins Science magazine’s “Dance Your PhD” contest

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CHRONOBIOLOGY

A clock that works in the dark

Researchers come together to reveal the circadian rhythms of tuco-tucos

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GEOLOGY

China and Brazil may once have been neighbors

Graphite-rich rocks suggest that areas of China and Brazil were joined together

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ENVIRONMENT

Lakes molded by time

Climate changes helped shape the landscape of Nhecolândia

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astrophysics

The rocks that remained

An alternative model suggests the asteroid belt originated in leftovers

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Astrophysics

Worlds like ours

New spectrographs should permit the discovery of planets that are Earth twins

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PHYSICS

The origin of cosmic rays

Ultra-high-energy particles come from outside the Milky Way

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paleontology

Fossils on the move

3D reconstructions highlight new characteristics of dinosaurs

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PALEOBIOLOGY

More than met the eye

Fossilized burrows suggest complex organisms arose before the Cambrian

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EMBRYOLOGY

Silencing in order to survive

One of the X chromosome is inactivated in females during development

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BIOLOGY

The chemical language of insects

Bees and ants recognize each other through compounds that cover their bodies

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Robert Myers

Robert Myers: A cataloger of the Cosmos

Physicist explains why it is so difficult to describe the Universe

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BOTANY

Highland gardens

Expeditions in Amazonia yield the discovery of new plant species

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Atmospheric sciences

Danger in the skies of São Paulo

Air pollution has declined in the São Paulo Metropolitan Region

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Ethology

Primate culture

Traditions dictate the use of tools among the monkeys of Piauí

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Medicine

Delving into genetic diseases

Analyzing gene-containing DNA segments allows diagnoses of diseases

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ASTROPHYSICS

The difference that equalizes the Sun and its sister stars

Chaotic plasma behavior helps explain the magnetic cycle of solar analog stars

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Nicholas Suntzeff

Nicholas Suntzeff: Observer of the distant universe

Researcher measures the distance of galaxies at the edge of the universe

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