Novel analogs of fusidic acid are described with one or more carbohydrate units attached. In one embodiment, the temperature is estimated using the resistance of the thermal print head element, which typically changes with the print head element temperature. Sry1\u2212yuSiO5:Eu2+D, wherein M1 and M2 are at least one of a divalent metal such as Ba, Mg, Ca, and Zn, the values of a, x, y, z and u follow the following relationships: 0. The sheet guide apparatus suppresses fluttering or instability of the sheet. Other embodiments are described and claimed.