<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>47692</termId><termName>Reacciones químicas--Mecanismos</termName><termType>TT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>Reacciones químicas--Mecanismos</termSortkey><termCreatedDate>Reacciones químicas--Mecanismos</termCreatedDate></term>  </Zthes>