Gamma(H→bbˉ)Gamma(H\to b\bar{b}) to order ααs\alpha\alpha_s

We compute the decay rate of the Standard Model Higgs boson to bottom quarks to order $\alpha\alpha_s$. We apply the optical theorem and calculate the imaginary part of three-loop corrections to the Higgs boson propagator using asymptotic expansions in appropriately chosen mass ratios. The corrections of order $\alpha\alpha_s$ are of the same order of magnitude as the ${\cal O}(\alpha_s^3)$ QCD corrections but have the opposite sign.Comment: 16 pages, 2 figures and 7 table

I can't wait! Neural reward signals in impulsive individuals exaggerate the difference between immediate and future rewards

Waiting for rewards is difficult, and highly impulsive individuals with low self-control have an especially hard time with it. Here, we investigated whether neural responses to rewards in a delayed gratification task predict impulsivity and self-control. The EEG was recorded from participants engaged in a guessing game in which on each trial they could win either a large or small reward, paid either now or after 6 months. Ratings confirmed that participants preferred immediate, large rewards over small, delayed rewards. Electrophysiological reward signals reflecting the difference between immediate and future rewards predicted self-report measures of impulsivity and self-control. Further, these signals were highly reliable across two sessions over a 1-week interval, showing high temporal stability like stable personality traits. These results suggest that greater valuation of immediate rewards causes impulsive individuals to redirect control away from delayed rewards, indicating why it is so hard for them to wait

Ein zweites Standbein für die Bibliothek OceanRep - das Institutional Repository des GEOMAR Helmholtz-Zentrums für Ozeanforschung Kiel

Bis zum Jahr 2010 wurden die Publikationen des damaligen Leibniz-Instituts für Meereswissenschaften (IFM-GEOMAR) im UNIVIS, dem Informationssystem der Universität Kiel, nachgewiesen. UNIVIS, dessen eigentliche Aufgabe ein Raumund Personenverzeichnis war, verfügte über einige Grundfunktionen (Suchbarkeit nach Autoren und Schlagworten, Generierung von Listen). Es gab aber keine Möglichkeit, einen öffentlichen und mit den Urheberrechten der Verlage konformen Zugang zu elektronischen Fassungen der hauseigenen Publikationen zu gewähren. Eine Weiterentwicklung des bisherigen Systems wäre zwar grundsätzlich möglich gewesen, hätte aber erhebliche personelle Ressourcen erfordert