Issue # 260 _ October 2017
S&T Policy
EDUCATION

Advances in graduate studies
Quadrennial CAPES evaluation shows increasing number and quality of courses, and fails 3% of programs
By Fabrício MarquesINNOVATION

Shared risk
Model adopted by Embrapii offers companies funding and cooperation with research groups
By Fabrício MarquesPublic Policy

Heralds of change
Study addresses the role of individuals who help mobilize society and catalyze transformation
By Bruno de PierroScience
BIOLOGY

The chemical language of insects
Within colonies, bees and ants recognize each other and organize themselves through compounds that cover their bodies
By Carlos FioravantiEMBRYOLOGY

Silencing in order to survive
One of the copies of the X chromosome is inactivated in females during the early days of embryonic development
By Rodrigo de Oliveira AndradePALEOBIOLOGY

More than met the eye
Fossilized burrows suggest complex organisms arose before the Cambrian explosion of diversity
By Maria Guimarãespaleontology

Fossils on the move
3D reconstructions highlight new characteristics of crocodiles and dinosaurs that lived millions of years ago in Brazil
By Diego FreirePHYSICS

The origin of cosmic rays
Study indicates with greater precision that these ultra-high-energy particles come from outside the Milky Way
By Victória FlórioAstrophysics

Worlds like ours
A new generation of spectrographs should permit the discovery of planets that are Earth twins
By Marcos Pivettaastrophysics

The rocks that remained
An alternative model suggests the asteroid belt originated in leftovers from the formation of the planets in the solar system
By Marcos PivettaTechnology
ENERGY

More efficient light
Perovskite solar cells may be a cheaper and more effective alternative to the silicon solar panels that dominate the world’s solar panel market.
By Yuri VasconcelosROAD ECOLOGY

Animals on the highway
New technologies to prevent animals being hit and reduce highway accidents are created in Brazil
By Yuri VasconcelosChemistry

Green reactions
Products incorporating renewable feedstocks are gradually replacing petroleum-based products
By Marcos de OliveiraAgriculture

Less water for rice
Agronomist develops new rice cultivation method
By Evanildo da Silveira