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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">RADIACTIVIDAD</topic></authority><related type="narrower"><topic>CAMARAS DE IONIZACION</topic></related><related type="narrower"><topic>ELEMENTOS TRANSURANICOS</topic></related><related type="narrower"><topic>FLUORESCENCIA</topic></related><related type="narrower"><topic>FOSFORESCENCIA</topic></related><related type="narrower"><topic>HELIO</topic></related><related type="narrower"><topic>ISOTOPOS DE CARBONO</topic></related><related type="narrower"><topic>RADIACION IONIZANTE</topic></related><related type="other"><topic>FISICA NUCLEAR</topic></related><related type="broader"><topic>RADIACION</topic></related><related type="broader"><topic>ELECTRICIDAD</topic></related><related type="broader"><topic>RADIOTERAPIA</topic></related><variant type="other"><topic>Radioactividad</topic></variant></mads>