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UNESCO Thesaurus

Oases (en)
Obesity (en)
Observation (en)
Obstacles to development (en)
Occultism (en) → Spiritualism (en)
Occupational change (en) → Occupational mobility (en)
Occupational choice (en)
Occupational diseases (en)
Occupational guidance (en) → Vocational guidance (en)
Occupational health (en) → Occupational diseases (en)
Occupational life (en) → Working life (en)
Occupational medicine (en)
Occupational mobility (en)
Occupational psychology (en)
Occupational qualifications (en)
Occupational safety (en)
Occupational satisfaction (en) → Job satisfaction (en)
Occupational sociology (en)
Occupational status (en)
Occupational therapy (en) → Occupational medicine (en)
Occupational training (en) → Vocational training (en)
Occupations (en)
Occupied territories (en)
Ocean circulation (en)
Ocean currents (en)
Ocean dynamics (en) → Dynamic oceanography (en)
Ocean engineering (en) → Marine engineering (en)
Ocean environment (en) → Marine environment (en)
Ocean expeditions (en) → Ocean exploration (en)
Ocean exploration (en)
Ocean floor (en)
Oceania (en)
Oceanic art (en)
Oceanic cultures (en)
Oceanic literature (en)
Oceanographic buoys (en)
Oceanographic data (en)
Oceanographic equipment (en)
Oceanographic instruments (en) → Oceanographic equipment (en)
Oceanographic laboratories (en)
Oceanographic measurement (en)
Oceanographic research (en)
Oceanography (en)
Oceanography education (en) → Marine education (en)
Oceanology (en) → Oceanography (en)
Oceans (en)
Ocean stations (en)
Ocean wave energy (en) → Tidal energy (en)
Ocean waves (en)
OCR (en) → Character recognition (en)
OECD countries (en)
OER (en) → Open educational resources (en)
Office automation (en)
Office equipment (en)
Office machines (en) → Office equipment (en)
Office management (en)
Office services (en)
Office workers (en)
Official archives (en) → Government archives (en)
Official publications (en)
Offset printing (en)
Offshore drilling (en) → Sea bed mining (en)
Oil industry (en) → Petroleum industry (en)
Oil pollution (en)
Oil resources (en) → Petroleum resources (en)
Old age (en)
Olympic Games (en)
Oman (en)
Ombudsman (en)
One parent families (en)
One teacher schools (en)
Online governance (en) → Electronic governance (en)
Online information retrieval (en) → Online searching (en)
Online information systems (en)
Online learning (en) → Electronic learning (en)
Online public access catalogues (en) → Catalogues (en)
Online searching (en)
Online systems (en)
On the job training (en) → Inservice training (en)
Ontology (en)
OPAC (en) → Catalogues (en)
Open area schools (en) → Open plan schools (en)
Open courseware (en) → Open educational resources (en)
Open educational resources (en)
Open learning systems (en) → Distance education (en)
Open plan schools (en)
Open source software (en)
Open spaces (en)
Open teaching/learning resources (en) → Open educational resources (en)
Open universities (en)
Opera (en)
Operating systems (en) → Computer software (en)
Operations research (en)
Ophthalmology (en)
Opinion surveys (en) → Public opinion polls (en)
Opium (en) → Narcotic drugs (en)
Oppression (en)
Optical character recognition (en) → Character recognition (en)
Optical discs (en)
Optical fibres (en)
Optical instruments (en)
Optics (en)
Optimization (en)
Optional courses (en) → Elective courses (en)
Oral examinations (en)
Oral expression (en)
Oral history (en)
Oral literature (en) → Folk literature (en)
Oral reading (en)
Oral tradition (en)
Orchestras (en)
Ore deposits (en) → Mineral deposits (en)
Organic chemistry (en)
Organic compounds (en)
Organic matter (en)
Organizational change (en)
Organizational structure (en) → Administrative structure (en)
Organization and methods (en)
Organization of research (en)
Organizations (en)
Organ transplantation (en)
Oriental art (en) → Asian art (en)
Oriental cultures (en) → Asian cultures (en)
Oriental languages (en) → Asian languages (en)
Orientation courses (en)
Oriya (en)
Ornithology (en)
Orphanages (en) → Residential child care (en)
Orphans (en)
Orthography (en) → Spelling (en)
Outdoor education (en)
Outer space (en) → Space (en)
Out of school education (en)
Out of school youth (en)
Overachievers (en) → Gifted students (en)
Overpopulation (en)
Oxygen (en)
Ozone (en)
Ozone depletion (en)

Contact: Juan Antonio Pastor Sánchez - pastor@um.es

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