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Canes: Sticks used as walking aids. The canes may have three or four prongs at the end of the shaft.Saccharum: A plant genus of the family POACEAE widely cultivated in the tropics for the sweet cane that is processed into sugar.Bufo marinus: A species of the true toads, Bufonidae, becoming fairly common in the southern United States and almost pantropical. The secretions from the skin glands of this species are very toxic to animals.Self-Help Devices: Devices, not affixed to the body, designed to help persons having musculoskeletal or neuromuscular disabilities to perform activities involving movement.Dependent Ambulation: To move about or walk on foot with the use of aids.Molasses: The syrup remaining after sugar is crystallized out of SUGARCANE or sugar beet juice. It is also used in ANIMAL FEED, and in a fermented form, is used to make industrial ETHYL ALCOHOL and ALCOHOLIC BEVERAGES.Myxozoa: Single-celled, aquatic endoparasitic worms that are currently considered belonging to the phylum CNIDARIA. They have a complex life cycle and parasitize a wide range of hosts including FISHES; ANNELIDA; and BRYOZOA.Introduced Species: Non-native organisms brought into a region, habitat, or ECOSYSTEM by human activity.Education of Visually Disabled: The teaching or training of those individuals with visual disability.Crutches: Wooden or metal staffs designed to aid a person in walking. (UMDNS,1999)Parasitic Diseases, Animal: Infections or infestations with parasitic organisms. The infestation may be experimental or veterinary.Health Occupations: Professions or other business activities directed to the cure and prevention of disease. For occupations of medical personnel who are not physicians but who are working in the fields of medical technology, physical therapy, etc., ALLIED HEALTH OCCUPATIONS is available.Bufonidae: The family of true toads belonging to the order Anura. The genera include Bufo, Ansonia, Nectophrynoides, and Atelopus.Orthopedic Equipment: Nonexpendable items used in the performance of orthopedic surgery and related therapy. They are differentiated from ORTHOTIC DEVICES, apparatus used to prevent or correct deformities in patients.Plants, Edible: An organism of the vegetable kingdom suitable by nature for use as a food, especially by human beings. Not all parts of any given plant are edible but all parts of edible plants have been known to figure as raw or cooked food: leaves, roots, tubers, stems, seeds, buds, fruits, and flowers. The most commonly edible parts of plants are FRUIT, usually sweet, fleshy, and succulent. Most edible plants are commonly cultivated for their nutritional value and are referred to as VEGETABLES.Vision, Low: Vision considered to be inferior to normal vision as represented by accepted standards of acuity, field of vision, or motility. Low vision generally refers to visual disorders that are caused by diseases that cannot be corrected by refraction (e.g., MACULAR DEGENERATION; RETINITIS PIGMENTOSA; DIABETIC RETINOPATHY, etc.).Substrate Cycling: A set of opposing, nonequilibrium reactions catalyzed by different enzymes which act simultaneously, with at least one of the reactions driven by ATP hydrolysis. The results of the cycle are that ATP energy is depleted, heat is produced and no net substrate-to-product conversion is achieved. Examples of substrate cycling are cycling of gluconeogenesis and glycolysis pathways and cycling of the triglycerides and fatty acid pathways. Rates of substrate cycling may be increased many-fold in association with hypermetabolic states resulting from severe burns, cold exposure, hyperthyroidism, or acute exercise.Walkers: Walking aids generally having two handgrips and four legs.Prescriptions: Directions written for the obtaining and use of PHARMACEUTICAL PREPARATIONS; MEDICAL DEVICES; corrective LENSES; and a variety of other medical remedies.Sensory Aids: Devices that help people with impaired sensory responses.