<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31431286</termId><termName>nitrate cels</termName><termType>PT</termType><termNote><![CDATA[ Animation cels made from cellulose nitrate, which were common during the 1920s through 1940s. The material was thereafter replaced because it was unstable and prone to yellowing, wrinking, and shrinkage. ]]></termNote><termCreatedDate>2026-03-30 20:56:22</termCreatedDate><relation><relationType>UF</relationType><termId>31431287</termId><termName>cels, nitrate</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31431288</termId><termName>nitrate cel</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31401802</termId><termName>animation cels</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31319700</termId><termName>cellulose nitrate film</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31371024</termId><termName>nitrocellulose</termName><termType>PT</termType></relation></term>  </Zthes>