A form of pneumoconiosis resulting from inhalation of dust containing crystalline form of SILICON DIOXIDE, usually in the form of quartz. Amorphous silica is relatively nontoxic.
The interaction of persons or groups of persons representing various nations in the pursuit of a common goal or interest.
A diffuse parenchymal lung disease caused by inhalation of dust and by tissue reaction to their presence. These inorganic, organic, particulate, or vaporized matters usually are inhaled by workers in their occupational environment, leading to the various forms (ASBESTOSIS; BYSSINOSIS; and others). Similar air pollution can also have deleterious effects on the general population.
The state of being engaged in an activity or service for wages or salary.
Organizations comprising wage and salary workers in health-related fields for the purpose of improving their status and conditions. The concept includes labor union activities toward providing health services to members.
The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.
A form of pneumoconiosis caused by inhalation of asbestos fibers which elicit potent inflammatory responses in the parenchyma of the lung. The disease is characterized by interstitial fibrosis of the lung, varying from scattered sites to extensive scarring of the alveolar interstitium.
Permanent roads having a line of rails fixed to ties and laid to gage, usually on a leveled or graded ballasted roadbed and providing a track for freight cars, passenger cars, and other rolling stock. Cars are designed to be drawn by locomotives or sometimes propelled by self-contained motors. (From Webster's 3d) The concept includes the organizational and administrative aspects of railroads as well.
The study of the structure, growth, function, genetics, and reproduction of bacteria, and BACTERIAL INFECTIONS.
Institutions which provide medical or health-related services.
Equipment on which one may lie and sleep, especially as used to care for the hospital patient.
Extended care facilities which provide skilled nursing care or rehabilitation services for inpatients on a daily basis.
Noise associated with transportation, particularly aircraft and automobiles.
The closing of any health facility, e.g., health centers, residential facilities, and hospitals.
Three-dimensional computed tomographic imaging with the added dimension of time, to follow motion during imaging.
Publications printed and distributed daily, weekly, or at some other regular and usually short interval, containing news, articles of opinion (as editorials and letters), features, advertising, and announcements of current interest. (Webster's 3d ed)
Instruments or technological means of communication that reach large numbers of people with a common message: press, radio, television, etc.
Computer-assisted mathematical calculations of beam angles, intensities of radiation, and duration of irradiation in radiotherapy.
Computed tomography modalities which use a cone or pyramid-shaped beam of radiation.
The system of all phenomena in space and time; the totality of physical reality. It is both a scientific and philosophic concept appearing in all historic eras. (Webster 2d; Dr. James H. Cassedy, NLM History of Medicine Division)
A written account of a person's life and the branch of literature concerned with the lives of people. (Harrod's Librarians' Glossary, 7th ed)
The writing of history; the principles, theory, and history of historical writing; the product of historical writing. (Webster, 3d ed)
Facilities provided for human excretion, often with accompanying handwashing facilities.
A federation of seven states on the southeast portion of the Arabian peninsula: Abu Dhabi, Ajman, Dubai, Fujairah, Ras al-Khaimah, Sharjah and Umm al-Qaiwain. In 1820 a treaty of peace was concluded between Great Britain and native rulers. During the 19th century the rulers agreed to suppression of the slave trade and restriction of foreign relations to Great Britain. The Trucial Council was established in 1952 and defense treaties with Great Britain terminated. In 1971 an independent six-member federation was formed, with Ras al-Khaimah joining the federation in 1972. (From Webster's New Geographical Dictionary, 1988, p1250)
A tribe of gram-negative bacteria of the family RICKETTSIACEAE whose organisms are found in arthropods and are pathogenic for man and certain other vertebrate hosts.
Place or physical location of work or employment.
The promotion and maintenance of physical and mental health in the work environment.
The development of systems to prevent accidents, injuries, and other adverse occurrences in an institutional setting. The concept includes prevention or reduction of adverse events or incidents involving employees, patients, or facilities. Examples include plans to reduce injuries from falls or plans for fire safety to promote a safe institutional environment.
Beliefs and values shared by all members of the organization. These shared values, which are subject to change, are reflected in the day to day management of the organization.
Unforeseen occurrences, especially injuries in the course of work-related activities.
The science, art or practice of cultivating soil, producing crops, and raising livestock.
The protection of animals in laboratories or other specific environments by promoting their health through better nutrition, housing, and care.