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ASTROPHYSICS

Signs of new worlds

Gravitational waves could be used to detect exoplanets in close orbit around their parent star

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OCEANOGRAPHY

Sources of methane under the sea

Two thousand craters releasing greenhouse gas found off the Brazilian coast

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HEALTH

Early-term births on the rise

In 2015, 40% of babies were born before reaching biological maturity, partly because of elective cesarean sections

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EVOLUTION

A theory in motion

Research that looks beyond the gene suggests new directions for understanding how species diversify

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Publications

A wider target audience

Major publisher’s acquisition of manuscript submission system makes waves in scientific journals market

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ENVIRONMENT

Life goes on

Environmental legislation helps reconnect Atlantic Forest fragments in agricultural regions across Brazil

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Funding

Reaping dividends

Investment in research has increased farm productivity in São Paulo and generated economic returns for the state

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INTERVIEW

Antonio Sérgio Petrilli: A multifaceted physician

Pediatric oncologist Antonio Sérgio Petrilli describes how he built and now runs one of Brazil’s leading centers for research and treatment of childhood cancer

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COVER

Pesticides in the balance

Debate stirs over proposed regulations on pesticides—the mainstay of large-scale farming but a hazard to the environment and the health of rural communities

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Archaeology

Neanderthal mother, Denisovan father

A 13-year-old girl who lived 90,000 years ago in what is now southwestern Siberia is the first described case of a direct descendant of two distinct archaic human groups

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Geology

Continuous expansion of the Amazon River

The Amazon River is still expanding as it captures water from the Orinoco River, which flows through Colombia and Venezuela

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Arts

The evolution of painting according to physics

A computer algorithm has provided a numerical quantification of the changing visual characteristics in paintings over the last thousand years

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UV radiation

When visiting the Atacama Desert, use sunscreen

Ultraviolet radiation in the Atacama Desert is higher than anywhere else on Earth

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Genetics

The quest for a universal flu vaccine

Sections of DNA are equal across all strains of the virus, making them good candidates for a potential vaccine against all varieties of influenza

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Economy

US investment in research grows in 2017

In 2017, the United States government invested US$118.3 billion in research and development

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Archaeology

The oldest library in Germany

Construction works on a church community center have revealed the ruins of a Roman library in the city of Cologne, Germany

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the Meghalayan age

A new chapter in Earth’s history

The proposal approved by the IUGS divides the Holocene into three ages: the Greenlandian, Northgrippian, and Meghalayan

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Biodiversity

The Geoffroy’s cat and its behavior

Biologists monitored a population of Geoffroy's cats (Leopardus geoffroyi) in the Caverá mountains

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Health

Alcohol consumption and health risks

Alcohol consumption is the leading cause of health problems in people aged 15–49

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Neuroscience

Pain neurons grown in a laboratory

Brazilian researchers have developed human sensory neurons in a laboratory for the first time

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Data

Patent filings increase and industry shows weakness

In 2017, residents of Brazil filed 5,480 patents at the Brazilian National Institute of Intellectual Property

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GOOD PRACTICES

Inappropriate relationships

Universities Australia has released a document aimed at master's and PhD supervisors and students

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GOOD PRACTICES

When recklessness becomes misconduct

An american neuroscientist dismissed for misconduct in 2012 by Wayne State University has managed to partially overturn his 10-year ban on federal research funding handed down by the US ORI

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GOOD PRACTICES

Four shades of academic plagiarism

India releases new guidelines on how to punish plagiarism in scientific papers and proposes a scale for assessing the severity of the problem

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Letter from the editor | 271

Developments

It is not news that Brazil has a much higher number of cesarean sections than recommended by the WHO. In 2015, 1.6 million babies were born via cesarean in the country, which represents 55.5% of all births. A study by researchers from Pelotas in the state of Rio Grande do Sul shows that up to... View Article

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Photolab

Brazil’s National Museum in Quinta da Boa Vista

Brazil’s National Museum in Quinta da Boa Vista, Rio de Janeiro September 3, 2018

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PROFILE

Lady of the water

Concern about the quality of water resources leads a young woman from the state of Santa Catarina to work for the UN

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CAREERS

Creative leisure

Hobbies can increase productivity and improve the ability to innovate

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RETROSPECT

Development theories

Seventy years ago, ECLAC created strategies for the industrialization of Latin American countries

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CINEMA

A Swedish filmmaker in Copacabana

Research reveals the Brazilian dimension of the work of Arne Sucksdorff, best known for documentaries about nature

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