<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>6640</termId><termName>TEORIA DE BANDA DE ENERGIA DE SOLIDOS</termName><termType>PT</termType><termLanguage>es-ES</termLanguage><termVocabulary>TESAURO DE MATERIAS DE SERBIULA</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>TEORIA DE BANDA DE ENERGIA DE SOLIDOS</termSortkey><termCreatedDate>TEORIA DE BANDA DE ENERGIA DE SOLIDOS</termCreatedDate><termModifiedDate>2015-02-10 05:34:50</termModifiedDate><relation><relationType>BT</relationType><termId>6356</termId><termName>CRISTALOGRAFIA MATEMATICA</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>7745</termId><termName>TEORIA DEL EXCITON</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>6427</termId><termName>MECANICA ONDULATORIA</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>7746</termId><termName>AGUJEROS (DEFICIENCIA DE ELECTRONES)</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>25240</termId><termName>APROXIMACION DE HARTREE-FOCK</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31024</termId><termName>CONDUCTORES UNIDIMENSIONALES</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>36726</termId><termName>ESTRUCTURA ELECTRONICA</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>40025</termId><termName>MODELOS DE HUBBARD</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>5265</termId><termName>TEORIA DE METALES DEL ELECTRON LIBRE</termName><termType>PT</termType></relation></term>  </Zthes>