<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31308497</termId><termName>magnetic field</termName><termType>PT</termType><termNote><![CDATA[ Region of space subjected to the influence of magnetism typically due to magnets, current-carrying conductors, and electromagnetic waves. ]]></termNote><termCreatedDate>2026-03-30 20:23:03</termCreatedDate><relation><relationType>BT</relationType><termId>31299843</termId><termName>magnetism and related concepts</termName><termType>PT</termType></relation></term>  </Zthes>