<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>22357</termId><termName>Relatividad (Física)</termName><termType>TT</termType><termCreatedDate>2014-09-15 20:11:36</termCreatedDate><relation><relationType>UF</relationType><termId>22358</termId><termName>Relatividad, Teoría de la</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>22359</termId><termName>Teoría de la relatividad</termName><termType>ND</termType></relation><relation><relationType>NT</relationType><termId>22362</termId><termName>Relatividad especial</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>22360</termId><termName>Relatividad general</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>22522</termId><termName>Espacio y tiempo</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>22520</termId><termName>Cosmología</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>24336</termId><termName>Mecánica cuántica</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>24296</termId><termName>Física</termName><termType>PT</termType></relation></term>  </Zthes>