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National Week of Science and Technology

The main objective of this week is to arouse the interest of the population, especially children and teenagers, in topics and activities related to science and technology, thus increasing the creativity, scientific attitude and innovation. Another purpose of the Week is to show the importance of science and technology for everyone and for the development of the country. It also enables that the population knows and discusses the results, relevance and the impact of scientific and technological researches and their applications.

Journal of Sciences 21
This 21st edition has a special flavor: the House of Science is celebrating its 10th anniversary. With a long time on the road, the Journal of Sciences (JS) has already a clear editorial line, dedicated to science dissemination with objective texts that privilege the development of concepts, once subjects related to science are difficult. That is exactly what makes this challenge even better. 
Human Reproduction

DNA is a long molecule, which stays in the nucleus of the cell where it is “written” all the information needed for the cell to work well. If it is a cardiac cell, DNA will give instructions so it works as a cardiac cell; if it is a brain cell, the instruction is to work as a brain cell. 
Chagas and the Kissing Bug
Carlos Chagas left Minas Gerais to become a doctor at Faculdade de Medicina do Rio de Janeiro. Back to his hometown, he was in charge of researching on malaria; however, with a good dose of perspicacity and observation, he revealed all the links of the epidemiologic chain of a disease still unknown. So, Chagas’ disease came into view, in a way never seen before in medicine: nobody had ever described a disease completely, including the host, the vector, the infectious agent, and the epidemiologic cycle. For this reason, Carlos Chagas came to be one of the great names of Brazilian Science. 
Elodea: Algae? No! Aquatic plant!
Elodea sounds like a name of a plant never seen before, doesn’t it? But you should know you have already seen it in an aquarium somewhere. 
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