<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>7746</termId><termName>AGUJEROS (DEFICIENCIA DE ELECTRONES)</termName><termType>PT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>AGUJEROS (DEFICIENCIA DE ELECTRONES)</termSortkey><termCreatedDate>AGUJEROS (DEFICIENCIA DE ELECTRONES)</termCreatedDate><termModifiedDate>2015-02-09 04:57:29</termModifiedDate><relation><relationType>UF</relationType><termId>40029</termId><termName>Agujeros (Semiconductores)</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>40030</termId><termName>Huecos (Deficiencia de electrones)</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>29122</termId><termName>DEFECTOS DE LOS CRISTALES</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>29121</termId><termName>CENTROS DE COLOR</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>6640</termId><termName>TEORIA DE BANDA DE ENERGIA DE SOLIDOS</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>5473</termId><termName>SEMICONDUCTORES</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>40028</termId><termName>PORTADORES CALIENTES</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>16859</termId><termName>POSITRONES</termName><termType>PT</termType></relation></term>  </Zthes>