Issue # 264 _ February 2018

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Cover

Unequal improvement
Improved access to basic education has been accompanied by an increase in learning gaps, hindering black and pardo students, and all students from lower socioeconomic levels By

S&T Policy

Scenarios

Determinants of survival in industry

Experts assess the risks and opportunities created by potentially disruptive technological developments

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ENVIRONMENT

The science of disasters

Study evaluates scientific production on natural disasters around the world and highlights Brazilian work in hydrology

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Scientometrics

#The100Most Commented

Altmetric publishes a list of the scientific articles most talked about on social media in 2017

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ALUMNI

Renewed relationships

Universities use networking platforms to bring former students together and follow their careers in the job market

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Science

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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NEUROLOGY

Adolescent depression

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

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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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ECOLOGY

The gears of the forest

The loss of more than 60% of native vegetation within a region leads to profound changes in how it operates

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ECOLOGY

A sea of fry

A survey finds two-thirds of fish off Brazil’s coast are of small body size

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physics

Heated up by the cold

Cold particles transfer heat to hotter ones in quantum experiment, reversing the thermodynamic arrow of time

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ASTROPHYSICS

Fireflies around Saturn

A Brazilian research team proposes a model to explain the origin of a tenuous ring around the second largest planet in the Solar System

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physics

Devouring stars

Survey shows that Milky Way cannibalized eleven neighboring galaxies

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Technology

LIVESTOCK

Contributions of Brazilian cattle

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ONCOLOGY

Cancer diagnosis innovation

Startups adopt new screening methods and biotechnology techniques

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Humanities

ARCHAEOLOGY

Occupation of primordial "Brazil"

Evidence suggests that hunter-gatherers inhabited all major regions of Brazil roughly 10,000 years ago

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LEGISLATION

A rainbow of demands

LGBT rights begin to gain respect through legal actions filed with the judicial branch

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