<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>1851</termId><termName>INFRAESTRUCTURA DE COMUNICACIONES</termName><termType>PT</termType><termLanguage>es</termLanguage><termVocabulary>Vocabulario Latinoamericano de Ciencias Sociales</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>INFRAESTRUCTURA DE COMUNICACIONES</termSortkey><termCreatedDate>2012-03-26 21:57:04</termCreatedDate><relation><relationType>BT</relationType><termId>5346</termId><termName>COMUNICACION</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>5318</termId><termName>REDES DE COMUNICACION</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>1843</termId><termName>COMUNICACION</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>1605</termId><termName>COMUNICACION DE MASAS</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>353</termId><termName>SERVICIOS POSTALES</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>315</termId><termName>TELECOMUNICACIONES</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>1854</termId><termName>REDES DE INFORMACION</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>1856</termId><termName>SISTEMAS DE COMUNICACION</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>941</termId><termName>PLANIFICACION DE LA COMUNICACION</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>1845</termId><termName>TRANSFERENCIA DE INFORMACION</termName><termType>PT</termType></relation></term>  </Zthes>