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One hundred years ago, the nuclear physicist Lise Meitner (1878-1968) discovered an effect, which is largely used nowadays for surfaces analysis and studies related to dissociation dynamics of isolated molecules, the Auger effect, studied in advanced undergraduate physics courses. In this article, we review some aspects of Lise Meitner's story and the physics of the effect that still has the male scientist's name, Pierre Auger (1899-1993), who independently discovered the same phenomenon around two years later. Like other researchers, we endorse the importance of renaming this effect and recognizing both scientists' contributions. [ABSTRACT FROM AUTHOR]

In this work, we use the ideas of scaling to investigate stochastic process for asymptotic times, we play particular attention to the phenomenon of anomalous diffusion. The combination of method of complex variables with scaling concepts allows us to investigate the mechanism of diffusion as well for intermediates times. We generalized the concept of the diffusion exponent to include other than the asymptotic power-law behaviour. A method is proposed to obtain the diffusion coefficient analytically through the introduction of a time scaling factor λ. We obtain also an exact expression for λ for all kinds of diffusion. Moreover, we show that λ is a universal parameter determined by the diffusion exponent. The results are then compared with numerical calculations and very good agreement is observed. We show the existence of two kinds of ballistic diffusion, one ergodic and another non-ergodic. The method is general and may be applied to many types of stochastic problem. [ABSTRACT FROM AUTHOR]

Diffusion regimes most frequently found in nature are described in terms of asymptotic behaviors. In this work, we use a generalization of the final-value theorem for Laplace transform in order to investigate the anomalous diffusion phenomenon for asymptotic times. We generalize the concept of the diffusion exponent, including a wide variety of asymptotic behaviors than the power law. A method is proposed to obtain the diffusion coefficient analytically through the introduction of a time scaling factor, λ. We obtain as well an exact expression for λ, which makes possible to describe all diffusive regimes featuring a universal parameter determined by the diffusion exponent. We show the existence of two kinds of ballistic diffusion, ergodic and non-ergodic. The method is general and may be applied to many types of stochastic problem. [ABSTRACT FROM AUTHOR]

MMP-9 activity is strongly related to cancer growth and metastization. This study aimed at assessing the inhibitory potential of the major seed protein fractions from eight selected legume species towards MMP-9 activity in colon carcinoma cells. Albumin and globulin fractions were screened for MMP-9 inhibitors, using a fluorometric assay and gelatin zymography. Their effect on HT29 cell proliferation and cell migration was tested, as well as on the corresponding intrinsic cellular MMP-9 activities. Seed proteins include potent inhibitors of MMP-9, particularly low molecular mass proteins. Their effectiveness differs greatly among species, with a positive correlation detected between their inhibitory activity and the reduction in cell migration. Lupin seeds contain the most efficient MMP-9 inhibitors of all legume seeds analyzed, inhibiting both gelatinases and HT29 migration and growth, while pea seeds showed no effect. Results reveal legume protein MMPIs as novel metalloproteinase inhibitors with possible pharmacological interest. This may be important for selecting leguminous species with potential use in anti-cancer diets., (Copyright © 2015 Elsevier Ltd. All rights reserved.)