<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>3947</termId><termName>CATALIZADORES</termName><termType>PT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>CATALIZADORES</termSortkey><termNote label="Cota LC"><![CDATA[ <p><a href="http://www.loc.gov/aba/publications/FreeLCC/Q-text.pdf" target="_blank">[QD501]</a></p>

<p><a href="http://www.loc.gov/aba/publications/FreeLCC/Q-text.pdf" target="_blank">[TP159.C3 (Technology)]</a></p> ]]></termNote><termCreatedDate>CATALIZADORES</termCreatedDate><relation><relationType>UF</relationType><termId>3958</termId><termName>Agentes catalíticos</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>3948</termId><termName>CATALISIS</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>3949</termId><termName>ENZIMAS</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>3950</termId><termName>CATALIZADORES DE COBALTO</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>3951</termId><termName>CATALIZADORES DE COBRE</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>3952</termId><termName>CATALIZADORES DE HIERRO</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>3954</termId><termName>CATALIZADORES DE MANGANESO</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>3955</termId><termName>CATALIZADORES DE PLATINO</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>3953</termId><termName>CATALIZADORES DEL GRUPO DEL PLATINO</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>3956</termId><termName>CATALIZADORES METALICOS</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>3957</termId><termName>CATALIZADORES ZIEGLER-NATTA</termName><termType>PT</termType></relation></term>  </Zthes>