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26th International Conference on Atomic Collisions in Solids, A method is presented to compute the dielectric function for extended systems using linear response time-dependent density functional theory. Localized basis functions with finite support are used to expand both eigenstates and response functions. The electron-energy loss function is directly obtained by an iterative Krylov-subspace method. We apply our method to graphene and silicon and compare it to plane-wave based approaches. Finally, we compute electron-energy loss spectrum of C60 crystal to demonstrate the merits of the method for molecular crystals, where it will be most competitive., We acknowledge support from ANR OrgaVolt project. D.S-P. and P.K. acknowledge support from the Basque Departamento de Educación, UPV/EHU (Grant No. IT-366-07), the Spanish Ministerio de Ciencia e Innovación (Grant No. FIS2010-19609-C02-02), the ETORTEK program funded by the Basque Departamento de Industria and the Diputación Foral de Guipuzcoa. D.S-P., P.K. and M.P.L. acknowledge the German DFG through SFB 1083.

A growing literature shows that the ability to control affective information in working memory (WM) plays an important role in emotional functioning. Whereas most studies have focused on executive processes relating to emotion dysregulation and mood disorders, few, if any, have looked at such processes in association with happiness. In this study, we examined whether the ability to update positive and negative stimuli in WM (assessed with an affective n-back task) is related to the cognitive and affective components of subjective well-being. Participants who were better at retaining and updating specifically positive (not negative) information in WM displayed higher levels of life satisfaction and affect balance, both at the trait level and in daily life. These results suggest that effective updating of positive information in WM may underlie happy people’s ability to maintain and further enhance positive thoughts and emotions.