<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>19635</termId><termName>CALENTAMIENTO DE PLASMA</termName><termType>PT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>CALENTAMIENTO DE PLASMA</termSortkey><termCreatedDate>CALENTAMIENTO DE PLASMA</termCreatedDate><relation><relationType>BT</relationType><termId>3995</termId><termName>FUSION NUCLEAR CONTROLADA</termName><termType>PT</termType></relation></term>  </Zthes>