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O limite é um conceito fundamental no cálculo que descreve o valor que uma função se aproxima quando a variável se aproxima de um determinado ponto. Por exemplo, o limite de uma função f quando x tende a um valor c é o valor que f fica cada vez mais próximo conforme x chega perto de c, mesmo que f não esteja definido exatamente em c . #Limites #Cálculo #Matemátic #Derivada.
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A cientista brasileira Tatiana Coelho de Sampaio, prof. da UFRJ, desenvolveu uma proteína experimental chamada polilaminina, capaz de devolver movimentos a pacientes paraplégicos e tetraplégicos. A pesquisa, fruto de mais de 25 anos de trabalho, usa uma "cola biológica" derivada da placenta para conectar nervos lesionados na medula. A sua estrutura molecular vem chamando a atenção, pois se assemelha a uma cruz, o que a faz estar sendo chamada de "Proteína de Deus".
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