Appalachian Region: A geographical area of the United States with no definite boundaries but comprising northeastern Alabama, northwestern Georgia, northwestern South Carolina, western North Carolina, eastern Kentucky, eastern Tennessee, western Virginia, West Virginia, western Maryland, southwestern Pennsylvania, southern Ohio, and southern New York.West VirginiaAcer: A plant genus of the family ACERACEAE, best known for trees with palmately lobed leaves.Balsams: Resinous substances which most commonly originate from trees. In addition to resins, they contain oils, cinnamic acid and BENZOIC ACID.Abies: A plant genus in the family PINACEAE, order Pinales, class Pinopsida, division Coniferophyta. Balm of Gilead is a common name more often referring to POPULUS and sometimes to COMMIPHORA.Coniferophyta: A plant division of GYMNOSPERMS consisting of cone-bearing trees and shrubs.Picea: A plant genus in the family PINACEAE, order Pinales, class Pinopsida, division Coniferophyta. They are evergreen, pyramidal trees with whorled branches and thin, scaly bark. Each of the linear, spirally arranged leaves is jointed near the stem on a separate woody base.MississippiElements: Substances that comprise all matter. Each element is made up of atoms that are identical in number of electrons and protons and in nuclear charge, but may differ in mass or number of neutrons.Encyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Silicon: A trace element that constitutes about 27.6% of the earth's crust in the form of SILICON DIOXIDE. It does not occur free in nature. Silicon has the atomic symbol Si, atomic number 14, and atomic weight [28.084; 28.086].Libraries, NursingNelson Syndrome: A syndrome characterized by HYPERPIGMENTATION, enlarging pituitary mass, visual defects secondary to compression of the OPTIC CHIASM, and elevated serum ACTH. It is caused by the expansion of an underlying ACTH-SECRETING PITUITARY ADENOMA that grows in the absence of feedback inhibition by adrenal CORTICOSTEROIDS, usually after ADRENALECTOMY.MedlinePlus: NATIONAL LIBRARY OF MEDICINE service for health professionals and consumers. It links extensive information from the National Institutes of Health and other reviewed sources of information on specific diseases and conditions.Araliaceae: The ginseng plant family of the order Apiales, subclass Rosidae, class Magnoliopsida. Leaves are generally alternate, large, and compound. Flowers are five-parted and arranged in compound flat-topped umbels. The fruit is a berry or (rarely) a drupe (a one-seeded fruit). It is well known for plant preparations used as adaptogens (immune support and anti-fatigue).Coal: A natural fuel formed by partial decomposition of vegetable matter under certain environmental conditions.Coal MiningOrthodontic Wires: Wires of various dimensions and grades made of stainless steel or precious metal. They are used in orthodontic treatment.Body Temperature Regulation: The processes of heating and cooling that an organism uses to control its temperature.Friction: Surface resistance to the relative motion of one body against the rubbing, sliding, rolling, or flowing of another with which it is in contact.Civil Rights: Legal guarantee protecting the individual from attack on personal liberties, right to fair trial, right to vote, and freedom from discrimination on the basis of race, color, religion, sex, age, disability, or national origin. (from accessed 1/31/2003)KentuckyHospitals, Religious: Private hospitals that are owned or sponsored by religious organizations.World War II: Global conflict involving countries of Europe, Africa, Asia, and North America that occurred between 1939 and 1945.Trustees: Board members of an institution or organization who are entrusted with the administering of funds and the directing of policy.Toilet Facilities: Facilities provided for human excretion, often with accompanying handwashing facilities.Students: Individuals enrolled in a school or formal educational program.Universities: Educational institutions providing facilities for teaching and research and authorized to grant academic degrees.Students, Medical: Individuals enrolled in a school of medicine or a formal educational program in medicine.Hospitals, Teaching: Hospitals engaged in educational and research programs, as well as providing medical care to the patients.Planning Techniques: Procedures, strategies, and theories of planning.Landslides: Downslope movements of soil and and/or rock resulting from natural phenomena or man made actions. These can be secondary effects of severe storms, VOLCANIC ERUPTIONS and EARTHQUAKES.Gas, Natural: A combustible, gaseous mixture of low-molecular weight PARAFFIN hydrocarbons, generated below the surface of the earth. It contains mostly METHANE and ETHANE with small amounts of PROPANE; BUTANES; and higher hydrocarbons, and sometimes NITROGEN; CARBON DIOXIDE; HYDROGEN SULFIDE; and HELIUM. (from McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Galliformes: An order of heavy-bodied, largely terrestrial BIRDS including pheasants, TURKEYS, grouse, QUAIL, and CHICKENS.ExplosionsFossil Fuels: Any combustible hydrocarbon deposit formed from the remains of prehistoric organisms. Examples are petroleum, coal, and natural gas.Asclepias: A plant genus of the family ASCLEPIADACEAE. This is the true milkweed; APOCYNUM & EUPHORBIA hirta are rarely called milkweed. Asclepias asthmatica has been changed to TYLOPHORA.Politics: Activities concerned with governmental policies, functions, etc.Amish: An ethnic group with shared religious beliefs. Originating in Switzerland in the late 1600s, and first migrating to the mid-Atlantic, they now live throughout Eastern and Mid-Western United States and elsewhere. Communities are usually close-knit and marriage is within the community.OhioConservation of Natural Resources: The protection, preservation, restoration, and rational use of all resources in the total environment.Ecosystem: A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)Climate Change: Any significant change in measures of climate (such as temperature, precipitation, or wind) lasting for an extended period (decades or longer). It may result from natural factors such as changes in the sun's intensity, natural processes within the climate system such as changes in ocean circulation, or human activities.Periodicals as Topic: A publication issued at stated, more or less regular, intervals.Manuscripts, MedicalTrees: Woody, usually tall, perennial higher plants (Angiosperms, Gymnosperms, and some Pterophyta) having usually a main stem and numerous branches.Introduced Species: Non-native organisms brought into a region, habitat, or ECOSYSTEM by human activity.Censuses: Enumerations of populations usually recording identities of all persons in every place of residence with age or date of birth, sex, occupation, national origin, language, marital status, income, relation to head of household, information on the dwelling place, education, literacy, health-related data (e.g., permanent disability), etc. The census or "numbering of the people" is mentioned several times in the Old Testament. Among the Romans, censuses were intimately connected with the enumeration of troops before and after battle and probably a military necessity. (From Last, A Dictionary of Epidemiology, 3d ed; Garrison, An Introduction to the History of Medicine, 4th ed, p66, p119)Residence Characteristics: Elements of residence that characterize a population. They are applicable in determining need for and utilization of health services.Geographic Information Systems: Computer systems capable of assembling, storing, manipulating, and displaying geographically referenced information, i.e. data identified according to their locations.Housing: Living facilities for humans.Socioeconomic Factors: Social and economic factors that characterize the individual or group within the social structure.Social Class: A stratum of people with similar position and prestige; includes social stratification. Social class is measured by criteria such as education, occupation, and income.Population Density: Number of individuals in a population relative to space.