<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>27534</termId><termName>BOSONES</termName><termType>PT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>BOSONES</termSortkey><termCreatedDate>BOSONES</termCreatedDate><relation><relationType>UF</relationType><termId>27535</termId><termName>Partículas de Bose-Einstein</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>16547</termId><termName>PARTICULAS (FISICA NUCLEAR)</termName><termType>PT</termType></relation></term>  </Zthes>