RESUMO
The first double diffractive cross-section measurement in the very forward region has been carried out by the TOTEM experiment at the LHC with a center-of-mass energy of sqrt[s]=7 TeV. By utilizing the very forward TOTEM tracking detectors T1 and T2, which extend up to |η|=6.5, a clean sample of double diffractive pp events was extracted. From these events, we determined the cross section σDD=(116±25) µb for events where both diffractive systems have 4.7<|η|min<6.5.
RESUMO
Since 1957 we have published the results of our research on the transformation of sterols in vegetable oils due the industrial treatment. During bleaching sterol hydrocarbons are formed which are partly removed due the deodorising. Hardening transforms them partly into other steroids. Thus the sterol hydrocarbons are also present in margarine. We have found that the content of those compounds amounted to a quantity of 0.023%. The apolar steroids are highly sensitive to the conditions of autoxidation. All margarines and edible oils contain not only steroid hydrocarbons but also the products of their oxidation and hydrogenation.
