English
Thesis written on an original topic of research, usually presented as one of the final requirements for a doctoral degree (Ph.D.).
Completing a doctoral dissertation is a very difficult task. It takes many years or original research that must be approved by academics.
Espa帽ol
Tesis escrita sobre un tema de investigaci贸n original, generalmente presentada como uno de los requisitos finales para un doctorado (Ph.D.).
Completar una disertaci贸n doctoral es una tarea muy dif铆cil. Requiere muchos a帽os de investigaci贸n original que debe ser aprobada por acad茅micos.