5 research outputs found
Great discoveries of milk for a healthy diet and a healthy life Grandes descobertas do leite para uma dieta e vida saudáveis
Extensive research in recent years has shown that consumption of milk and dairy products, promotes cardiovascular health, reduces symptoms of the metabolic syndrome in obese individuals, promotes weight loss while maintaining body muscle mass and reduces incidence of some cancers. Detailed analysis of prospective studies in large Western populations over long periods of time demonstrates that higher consumption of dairy products provides an overall survival advantage.<br>Nos Ăşltimos anos, inĂşmeras pesquisas tĂŞm mostrado que o consumo de leite e produtos lácteos melhora a saĂşde cardiovascular, reduz os sintomas da sĂndrome metabĂłlica em indivĂduos obesos, promove a perda de peso, enquanto mantĂ©m a massa muscular do corpo, e reduz a incidĂŞncia de alguns tipos de câncer. A análise detalhada de estudos prospectivos em grandes populações ocidentais durante longos perĂodos de tempo demonstra que maior consumo de produtos lácteos proporciona uma vantagem de sobrevida global
Hydrodynamics of DNA confined in nanoslits and nanochannels
Modeling the dynamics of a confined, semi exible polymer is a challenging problem, owing to the complicated interplay between the configurations of the chain, which are strongly affected by the length scale for the confinement relative to the persistence length of the chain, and the polymer-wall hydrodynamic interactions. At the same time, understanding these dynamics are crucial to the advancement of emerging genomic technologies that use confinement to stretch out DNA and “read” a genomic signature. In this mini-review, we begin by considering what is known experimentally and theoretically about the friction of a wormlike chain such as DNA confined in a slit or a channel. We then discuss how to estimate the friction coefficient of such a chain, either with dynamic simulations or via Monte Carlo sampling and the Kirk-wood pre-averaging approximation. We then review our recent work on computing the diffusivity of DNA in nanoslits and nanochannels, and conclude with some promising avenues for future work and caveats about our approach