<abstract> <p>This paper explores the role of European Union Allowances (EUAs) as a safe haven for range assets and analyses effect safe-haven flows on carbon futures market. In particular, we demonstrate that EUAs can be considered refuge against fluctuations in corporate bonds, gold volatility-related periods market turmoil. Furthermore, have shown extremely bearish bullish moveme...

The notion that the colon's deep crypt pockets provide a protected location that shields stem cells from potentially toxic substances is widely accepted. In this issue of Cell, Kaiko et al. reveal how a metabolite abundantly produced by the gut microbiota can inhibit stem cell proliferation but is blocked from doing so by crypt architecture.