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Retrospect

Amazement and horror in nineteenth-century Rio

Paintings by two artists who accompanied Darwin on the Beagle voyage recorded the exuberance of nature and social contrasts

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Obituary

An educator for freedom

Educator Roberto da Silva argued that teaching could transform the future of offenders

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Literature

Gonçalves Dias’s legacy goes beyond nationalist Indianism

Poet from Maranhão worked in several areas and wrote texts that preceded discussions about the effects of slavery on Brazil’s formation

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Design

The history of the women who created textile artifacts in Brazil

Pioneers of Brazilian design created tapestries, fabrics, and fashion

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Society

Sexual violence against men is underreported

Sexual violence against men is underreported

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New materials

Nanocellulose used in tires and cosmetics

Substance extracted from plants increases the strength and reduces the weight of paper, rubber, plastics, paints, and cement

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Innovation

To measure your carbon footprint

Online calculators encourage ecological awareness and increase access to environmental compensation programs

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Agronomy

New techniques for determining soil identities

Land mapping with sensors, drones, and satellites improves agricultural productivity and identifies erosion and water or nutrient loss

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Physics

Study reduces uncertainty about excess magnetism in muons

Study reduces uncertainty about excess magnetism in muons

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Paleontology

The injured paw of a saber-toothed tiger

Fossil with signs of infection indicates that the animal, which lived around 100,000 years ago, probably struggled to move and hunt

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Archaeology

Digital map reveals rock art in São Paulo

Cutting-edge technology used to unite data about sites with prehistoric paintings and engravings in the state in an interactive format

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Ecology

Theodoro, Soneca, and other jaguars in the forests of São Paulo

Guide identifies 51 jaguars, mostly in the far west and south of the state

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Interview

Tasso Azevedo: Deforestation frontiers

Head of MapBiomas explains why deforestation declined in the Amazon in 2023, but increased in the Cerrado

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Environment

The silent drama of the Pampas

In the past four decades, 30% of the biome’s native vegetation has been occupied by soybean cultivation and even by planted eucalyptus forests

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Meteorology

2023 was the hottest year on the planet since 1850

The global average temperature was 14.98 °C, almost 1.5 °C higher than in the preindustrial period

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Health economics

Half of all tuberculosis patients spend more than 20% of their annual family income on treatment

Extra consultations or exams, transportation, food, and loss of income add up to US$1,573.40, on average

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Epidemiology

Around 400,000 people died due to cardiovascular problems in Brazil in 2022

Heart attacks and different types of strokes accounted for 76% of cases

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Pediatrics

Anemia and nutrient deficiencies fall while being overweight increases among children up to 5 years old

A nationwide study also found that ultra-processed foods are consumed at a high frequency

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Data

The slow resumption of PhDs

Significant growth in the number of PhDs awarded between 2021 and 2022

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Good practices

Shining a light on the dark history of racism

Two-hundred-year-old scientific journal acknowledges its own connections with slavery and complicity in prejudice

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Good practices

Study examines sanctions for misconduct in the USA

A team of researchers analyzed the severity of punishments for scientists accused of misconduct by the US Office of Scientific Integrity

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Good practices

Map of scientific article retractions in the BRICS countries

Researchers from India analyzed 11,764 articles by scientists from BRICS countries that were retracted between 1989 and 2021

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Open access

Radical change in science communication

International consortium proposes new model for publishing articles and research results

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Cooperation

Collaborations and scientific expeditions in the rainforest

Amazonia+10 Initiative brings together researchers from 25 Brazilian states and abroad to improve understanding of the region's social and biological diversity

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Cover

Travel itinerary

The Tumucumaque Mountains National Park (PNMT) is isolated from urban areas, leaving the forest unaltered by human activity

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Cover

Amazonian Giants

Expedition investigates the scientific enigma of 80-meter-tall trees in Amapá

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Interview

Jacques Marcovitch: USP has accomplished much and can do more

Former USP dean Jacques Marcovitch looks back on contributions made by Brazil’s leading university as it turns 90, and explores his own research interests, including academic metrics, bioeconomy, and entrepreneurial innovation

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Agronomy

Another Brazilian source of hops

Experimental hop cultivation in Ribeirão Preto proves successful

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Archaeology

Horses in Patagonia before Europeans

Archaeologists shed light on the arrival of horses in Patagonia

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Nutrition

Ultra-processed foods lead to diabetes

Consumption of ultra-processed foods is associated with a higher risk of type 2 diabetes

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