This exceptional thermostability permits extremely high hybridization stringency and ligation specificity. This challenge is generally overcome by manipulating the hybridization stringency conditions. Similar stringency is required in PAM or the bacterial strain remains phage sensitive. Some Ashkenazi Jews keep this stringency. XHTML 1.1 has the stringency of XHTML 1.0 Strict. Some Reform and Conservative rabbis condemn capital punishment generally, partly based on this stringency. Classical ChIP-seq displays issues with resolution quality, stringency in experimental protocol, and DNA fragmentation. Nevertheless, the period was one of economic stagnation and financial stringency. Coevolutionary measurements are further evaluated to assess their performance and stringency. PM standards will increase in stringency in 2020. This lengthening of the "niddah" period is known as Rabbi Zeira's stringency. Another difficulty is the current stringency of environmental legislation. Subsequent changes have improved the stringency of the testing procedures, among other issues. The SGER was renewed to 2017 with increased stringency. In one case, Soloveitchik surprised observers by not following a well-known stringency.