@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix nalt: <https://lod.nal.usda.gov/nalt/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix ns0: <https://lod.nal.usda.gov/naltv#> .

<https://lod.nal.usda.gov/naltv#marc001> rdfs:label "Field 001 in MARC Authority Format"@en .
nalt:287406_def
  a <https://lod.nal.usda.gov/naltv#Definition> ;
  rdf:value "Concentración de un químico o un fármaco que produce el 50 % de su efecto máximo."@es, "The concentration of a chemical or drug that results in 50% of its maximal effect."@en ;
  dc:source "NAL Thesaurus Staff" .

<https://lod.nal.usda.gov/nalt>
  a skos:ConceptScheme ;
  rdfs:label "NALT Full"@en .

<https://lod.nal.usda.gov/naltv#Topic>
  a owl:Class ;
  rdfs:label "Topic"@en .

nalt:287406
  a skos:Concept, <https://lod.nal.usda.gov/naltv#Topic> ;
  dc:created "2016-09-19"^^xsd:date ;
  dc:modified "2016-11-14"^^xsd:date ;
  skos:altLabel "EC50 (effective concentration 50)"@en, "effective concentration 50"@en, "50% effective concentration"@en, "half-maximal effective concentration"@en ;
  skos:broader nalt:34991 ;
  skos:definition nalt:287406_def ;
  skos:inScheme <https://lod.nal.usda.gov/nalt> ;
  skos:prefLabel "median effective concentration"@en, "concentración eficaz mediana"@es ;
  skos:related nalt:34638, nalt:65620, nalt:34395, nalt:68545 ;
  ns0:marc001 "77712" .

nalt:34638
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "drug evaluation"@en, "evaluación de fármacos"@es ;
  skos:related nalt:287406 .

nalt:68545
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "concentración letal 50"@es, "lethal concentration 50"@en ;
  skos:related nalt:287406 .

nalt:34991
  a ns0:Topic, skos:Concept ;
  skos:narrower nalt:287406 ;
  skos:prefLabel "experimentación"@es, "testing"@en .

nalt:34395
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "respuesta a la dosis"@es, "dose response"@en ;
  skos:related nalt:287406 .

nalt:65620
  a ns0:Topic, skos:Concept ;
  skos:prefLabel "toxicity testing"@en, "pruebas de toxicidad"@es ;
  skos:related nalt:287406 .