Issue # 113 _ July 2005
S&T Policy
Ecology
Under new management
Law authorizes private management of public forest to contain deforestation
By Claudia IziqueScience
Genetics
The intelligence leaps
Strips of mobile DNA regulate the differentiation of nerve cells
By Carlos FioravantiBiochemistry
Molecular goldsmith
São Paulo network overcomes the high risk of a fiasco and clarifies the structure of 52 proteins
By Ricardo ZorzettoPaleontology
The mastodon and the macrauchenia
Dating the teeth helps in the reconstruction of the Northeast's megafauna
By Verônica FalcãoTechnology
Chemistry
Powerful liaisons
Ceramic nanoribbons are candidates for making connections in circuits and transistors
By Marcos de OliveiraAerospace engineering

Space for conquests
Brazil now has thrusters and catalysts, two essential components for satellites
By Yuri VasconcelosGastroenterology
Mopping up
Machine developed by a small company cleans endoscopes more effectively
By Dinorah ErenoEnergy
On the waves of the sea
Port in Ceará will have an electricity generation plant developed at UFRJ
By Dinorah ErenoHumanities
Narcotics
Ways of prevention
A study from Cebrid helps to distinguish myth from reality in the panorama of drug use in Brazil
By Fabrício Marques