Electrolytic manganese dioxide characterized by having a surface sulfate content of smaller than 0. The methods may comprise the steps of: a) preparing a first sample of genomic DNA from a selected species; b) obtaining a plurality of methylated nucleic acid segments from the genomic DNA; and c) screening the methylated nucleic acid segments to identify a centromere nucleic acid sequence. Its center rail includes two sheaves to receive the cord and lead it from the drum back to an end secured to the ceiling. A heat resistant metal seal member seals an electrode-side heat transfer space formed between the electrode unit and the cooling block. In this embodiment, the at least one performance characteristic enables the tuning of the plurality of first sensor channels of the respective plurality of capacitive sensing devices.