<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>14051246</termId><termName>[magnetismo y conceptos relacionados]</termName><termType>PT</termType><termCreatedDate>2026-03-30 20:20:30</termCreatedDate><relation><relationType>BT</relationType><termId>14050102</termId><termName>conceptos de ciencias físicas</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>14055649</termId><termName>magnetismo</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>14055650</termId><termName>conceptos relacionados con magnetismo</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>14055651</termId><termName>campo magnético</termName><termType>PT</termType></relation></term>  </Zthes>