A reversible organophosphorus cholinesterase inhibitor. It also affects the presynaptic membrane and inhibits membrane postsynaptic cholinergic receptors. The compound had former use as a miotic.
A natural, adoptive, or substitute parent of a dependent child, who lives with only one parent. The single parent may live with or visit the child. The concept includes the never-married, as well as the divorced and widowed.
A household that includes children and is headed by one adult.
Persons functioning as natural, adoptive, or substitute parents. The heading includes the concept of parenthood as well as preparation for becoming a parent.
Compounds that provide LUBRICATION between surfaces in order to reduce FRICTION.
Experiments designed to determine the potential toxic effects of one-time, short-term exposure to a chemical or chemicals.
The application of LUBRICANTS to diminish FRICTION between two surfaces.
Metastatic lesion of the UMBILICUS associated with intra-abdominal neoplasms especially of the GASTROINTESTINAL TRACT or OVARY.
The pit in the center of the ABDOMINAL WALL marking the point where the UMBILICAL CORD entered in the FETUS.
Ultrasonography of internal organs using an ultrasound transducer sometimes mounted on a fiberoptic endoscope. In endosonography the transducer converts electronic signals into acoustic pulses or continuous waves and acts also as a receiver to detect reflected pulses from within the organ. An audiovisual-electronic interface converts the detected or processed echo signals, which pass through the electronics of the instrument, into a form that the technologist can evaluate. The procedure should not be confused with ENDOSCOPY which employs a special instrument called an endoscope. The "endo-" of endosonography refers to the examination of tissue within hollow organs, with reference to the usual ultrasonography procedure which is performed externally or transcutaneously.
Endoscopic examination, therapy or surgery of the bronchi.
Collections of illustrative plates, charts, etc., usually with explanatory captions.
Directions or principles presenting current or future rules of policy for assisting health care practitioners in patient care decisions regarding diagnosis, therapy, or related clinical circumstances. The guidelines may be developed by government agencies at any level, institutions, professional societies, governing boards, or by the convening of expert panels. The guidelines form a basis for the evaluation of all aspects of health care and delivery.
A contagious disease caused by canine adenovirus (ADENOVIRUSES, CANINE) infecting the LIVER, the EYE, the KIDNEY, and other organs in dogs, other canids, and bears. Symptoms include FEVER; EDEMA; VOMITING; and DIARRHEA.
Endoscopes for the visualization of the interior of the bronchi.
An activity in which the organism plunges into water. It includes scuba and bell diving. Diving as natural behavior of animals goes here, as well as diving in decompression experiments with humans or animals.
Fabric or other material used to cover the body.
A quantitative measure of the frequency on average with which articles in a journal have been cited in a given period of time.
Educational institutions.
A species of VESICULOVIRUS causing VESICULAR STOMATITIS primarily in cattle, horses, and pigs. It can be transmitted to humans where it causes influenza-like symptoms.
Dissertations embodying results of original research and especially substantiating a specific view, e.g., substantial papers written by candidates for an academic degree under the individual direction of a professor or papers written by undergraduates desirous of achieving honors or distinction.
The sciences dealing with processes observable in nature.
The study, control, and application of the conduction of ELECTRICITY through gases or vacuum, or through semiconducting or conducting materials. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
All of the divisions of the natural sciences dealing with the various aspects of the phenomena of life and vital processes. The concept includes anatomy and physiology, biochemistry and biophysics, and the biology of animals, plants, and microorganisms. It should be differentiated from BIOLOGY, one of its subdivisions, concerned specifically with the origin and life processes of living organisms.
The field of information science concerned with the analysis and dissemination of data through the application of computers.
The branch of medicine concerned with the physiological and pathological aspects of the aged, including the clinical problems of senescence and senility.
Nursing care of the aged patient given in the home, the hospital, or special institutions such as nursing homes, psychiatric institutions, etc.
Services for the diagnosis and treatment of diseases in the aged and the maintenance of health in the elderly.
Evaluation of the level of physical, physiological, or mental functioning in the older population group.
Hospitals controlled by agencies and departments of the state government.
Individuals referred to for expert or professional advice or services.