<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>8186</termId><termName>Fotones</termName><termType>PT</termType><termCreatedDate>2014-09-15 19:46:18</termCreatedDate><relation><relationType>UF</relationType><termId>8187</termId><termName>Cuantos de luz</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>8174</termId><termName>Partículas (Física nuclear)</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>24326</termId><termName>Óptica cuántica</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>3402</termId><termName>Efecto Mössbauer</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7242</termId><termName>Luz</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>16531</termId><termName>Radiación ionizante</termName><termType>PT</termType></relation></term>  </Zthes>