<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>7254</termId><termName>REFRACCION</termName><termType>PT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>REFRACCION</termSortkey><termCreatedDate>REFRACCION</termCreatedDate><termModifiedDate>2015-03-03 09:22:43</termModifiedDate><relation><relationType>BT</relationType><termId>1015</termId><termName>OPTICA</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>32152</termId><termName>DISPERSION DE LA LUZ</termName><termType>PT</termType></relation></term>  </Zthes>