Topics: Peripheral Receptors, Auditory system, Vestibular System, Audiology, Acoustics, hearing, hearing loss, vestibular functions, external ear, Eustachian Tube, middle ear, Cholesteatoma, Chronic Otitis Media, Suppurative Otitis Media, Otitis Media, Otosclerosis, Otospongiosis, Facial Nerve, Ménière’s Disease, mastoid, acoustic neuroma, deaf child, hearing impairment, otalgia, tinnitus, nose, External Nose, Nasal Vestibule, Nasal Septum.Rhinitis, acute Rhinitis, chronic Rhinitis, Allergic Rhinitis, Nasal Cavity, Vasomotor, Nonallergic Rhinitis, Nasal Polypi, Epistaxis, Acute Rhinosinusitis, Chronic Rhinosinusitis, Sinusitis, Paranasal Sinuses, Proptosis, Thyroid Gland, pharynx, larynx, Oral Cavity, Salivary Glands, Adenoids, Pharyngitis, acute Pharyngitis, chronic Pharyngitis, Tonsillitis, Snoring, Sleep Apnoea, Laryngotracheal Trauma, laryngitis, ACUTE EPIGLOTTITIS, ACUTE LARYNGO-TRACHEO-BRONCHITIS, LARYNGEAL DIPHTHERIA, Laryngeal Paralysis, Cancer Larynx, Tracheostomy, Airway Management, Oesophagus, Dysphagia, Laser Surgery, Radiofrequency Surgery, Hyperbaric Oxygen Therapy, Coblation, Cryosurgery, Neck Masses

Topics: Natural Environment, Animal Production, earth science, environment, geological activity, oceans, rivers, streams, lakes, ponds, climate change, atmosphere, atmospheric layers, global warming, climate, weather, life ecosystems, biomes, biogeochemical cycles, wilderness, Environmental degradation, population growth, agriculture, water management, greenhouse gas emission, Gas effect, emissions, pollution, air pollution, water pollution, land pollution, erosion, coastal erosion, glaciers, floods, freezing, thawing, wind erosion, gravitational erosion, exfoliation, soil structure, soil composition, vegetation cover, topography, agricultural practices, deforestation, urbanization, airborne dust pollution, desertification, Stratospheric Ozone, ozone hole, Antarctica Ozone Theory

Topics: Thermodynamics, energy, energy transfer, energy analysis, closed systems, mass analysis, second law of thermodynamics, entropy, exergy, gas power cycles, refrigeration cycles, thermodynamic properties relations, gas mixtures, gas-vapor mixtures, air-conditioning, chemical reactions, chemical equilibrium, phase equilibrium, compressible flow, renewable energy

Topics: Thermodynamics, energy, energy transfer, energy analysis, closed systems, mass analysis, second law of thermodynamics, entropy, exergy, gas power cycles, refrigeration cycles, thermodynamic properties relations, gas mixtures, gas-vapor mixtures, air-conditioning, chemical reactions, chemical equilibrium, phase equilibrium, compressible flow, renewable energy

Topics: head, neck, brain, head anatomy, neck anatomy, head Osteology, neck Osteology, Scalp, Temple, Face, Cervical Spinal Column, Parotid Region, Submandibular Region, Infratemporal Fossa, Temporomandibular Joint, Pterygopalatine Fossa, Thyroid and Parathyroid Glands, Trachea, Esophagus, Paravertebral Regions, Root of the Neck, nose, paranasal air sinuses, ear, orbit, eyeball, Vertebral Canal, cranial cavity, cranial nerves, brainstem, Cerebellum, Fourth Ventricle, Diencephalon, Third Ventricle, cerebrum, basal nuclei, limbic system

Topics: Chemistry, Scientific Method, SI Measurement System, chemical calculations, matter, energy, atom, atomic structure, periodic table, chemical reactions, mole concept, solutions, thermochemistry, Enthalpy, heat of reaction, acid, base, quantum theory, ionic bonding, Covalent Bonding, Intermolecular Forces, Condensed States, environmental chemistry, air pollution, water pollution, nuclear chemistry

Topics: ecosystem, populations, population growth, predation, symbiosis, community stability, nutrition circulation, allelochemics, soil development, soil classification, vegetation, watersheds, biogeochemistry, pollution, radioisotope contamination, pesticides, heavy metals, air pollution, lake production, eutrophication, retrogression, community evolution, human ecology, marine productivity, detritus, biosphere

Topics: Enviroment, land, air, water, flora, fauna, man, Deforestation, Land degradation, Desertification, Ozone Layer Depletion, Climate Change, Deterioration of Fresh Water Resources, Destruction of Biodiversity, Generation of Waste, Toxic Chemicals, Environmental Resources

Topics: GSM, SIM, GSM Network entities, Gateway Mobile services Switching Center (GMSC), GSM AIR INTERFACE, Combined signal loss

Topics: Economic Growth Rates, World Population Growth, Income Inequality, poverty, hunger, Health, Longevity, education, Industrialization, Postindustrialization, Urban Air Pollution, Public Enterprise, Private Enterprise, Globalization, international Trade, Foreign Investment, Foreign Aid, Global Climate Change, Development Sustainability, Development Goals, Development Strategies