Issue # 254 _ April 2017

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Cover

The mechanisms of aging
Studies of living cells and organisms identify genetic and molecular phenomena associated with physical and mental decline By and

S&T Policy

Diffusion

Public Review

The preprints model, commonly used in the exact sciences, is gaining popularity in the biological and social sciences

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Research & Development

Outliers

PINTEC data analysis indicates that cooperation between businesses and universities is only strong in certain sectors of the economy

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Gender

The search for balance

A study comparing scientific output by women in a range of countries highlights Brazil among those leading the way

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Funding

Risky questions

Private institute to invest up to R$18 million per year in innovative research in Brazil

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Science

Daniel Kleppner

Daniel Kleppner: The continuing strength of atomic physics

Experiments by this American physicist laid the foundation for major discoveries about the behavior of atoms and technological advances like GPS

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Physics

The behavior of blackouts

Mathematical models help us understand how successive failures cause blackouts in electrical networks

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ASTRONOMY

Hard and lifeless

Even though they resemble Earth, the crusts of some rocky exoplanets may be too rigid for them to be habitable

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Cytology

The hanging gardens of cells

Cultures in 3D environments reveal unknown structures and broaden understanding of brain development

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Zoology

Spines filled with poison

Gland at the end of hairs produces toxic secretion in stinging caterpillars

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Paleontology

Animals of Paraná

Mammal and bird fossils indicate the existence of ancient, unknown fauna that lived in the region of Curitiba 40 million years ago

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Technology

AGRICULTURE

Biological controls to combat citrus greening

Companies invest in small wasps produced in the lab to combat insects that spread diseases to orange groves

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Livestock

Cattle genes

Knowledge of bovine genetics will likely help farmers select Nelore cattle with more tender meat

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Humanities

URBAN GEOGRAPHY

A life within walls

Gated communities and shopping malls accentuate social and spatial separation in midsized cities

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VISUAL ARTS 

The omnipresence of images

Studies show how photography has molded our way of seeing the world

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Literature

João Antônio’s journalism and fiction

Writer’s project to authentically portray lower-income citizens benefited from his journalistic involvement

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