Political Systems: The units based on political theory and chosen by countries under which their governmental power is organized and administered to their citizens.Politics: Activities concerned with governmental policies, functions, etc.BrazilHepatitis, Infectious Canine: 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.Democracy: A system of government in which there is free and equal participation by the people in the political decision-making process.Tourette Syndrome: A neuropsychological disorder related to alterations in DOPAMINE metabolism and neurotransmission involving frontal-subcortical neuronal circuits. Both multiple motor and one or more vocal tics need to be present with TICS occurring many times a day, nearly daily, over a period of more than one year. The onset is before age 18 and the disturbance is not due to direct physiological effects of a substance or a another medical condition. The disturbance causes marked distress or significant impairment in social, occupational, or other important areas of functioning. (From DSM-IV, 1994; Neurol Clin 1997 May;15(2):357-79)Dog Diseases: Diseases of the domestic dog (Canis familiaris). This term does not include diseases of wild dogs, WOLVES; FOXES; and other Canidae for which the heading CARNIVORA is used.Dental Impression Materials: Substances used to create an impression, or negative reproduction, of the teeth and dental arches. These materials include dental plasters and cements, metallic oxide pastes, silicone base materials, or elastomeric materials.Documentaries and Factual FilmsCommunication: The exchange or transmission of ideas, attitudes, or beliefs between individuals or groups.Bulimia: Eating an excess amount of food in a short period of time, as seen in the disorder of BULIMIA NERVOSA. It is caused by an abnormal craving for food, or insatiable hunger also known as "ox hunger".Television: The transmission and reproduction of transient images of fixed or moving objects. An electronic system of transmitting such images together with sound over a wire or through space by apparatus that converts light and sound into electrical waves and reconverts them into visible light rays and audible sound. (From Webster, 3rd ed)BooksSocialism: A system of government in which means of production and distribution of goods are controlled by the state.Writing: The act or practice of literary composition, the occupation of writer, or producing or engaging in literary work as a profession.History, 20th Century: Time period from 1901 through 2000 of the common era.Science: The study of natural phenomena by observation, measurement, and experimentation.AustriaOrganizations, Nonprofit: Organizations which are not operated for a profit and may be supported by endowments or private contributions.Supreme Court Decisions: Decisions made by the United States Supreme Court.Lawyers: Persons whose profession is to give legal advice and assistance to clients and represent them in legal matters. (American Heritage Dictionary, 3d ed)Hospitals, Voluntary: Private, not-for-profit hospitals that are autonomous, self-established, and self-supported.Public Opinion: The attitude of a significant portion of a population toward any given proposition, based upon a measurable amount of factual evidence, and involving some degree of reflection, analysis, and reasoning.San FranciscoCivil 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 http://www.usccr.gov/ accessed 1/31/2003)Torture: The intentional infliction of physical or mental suffering upon an individual or individuals, including the torture of animals.Sociobiology: The comparative study of social organization in animals including humans, especially with regard to its genetic basis and evolutionary history. (Merriam-Webster's Collegiate Dictionary, 10th ed)Bays: An area of water mostly surrounded by land, usually smaller than a gulf, and affording access to the sea.Magic: Beliefs and practices concerned with producing desired results through supernatural forces or agents as with the manipulation of fetishes or rituals.Expert Testimony: Presentation of pertinent data by one with special skill or knowledge representing mastery of a particular subject.Commodification: The social process by which something or someone comes to be regarded and treated as an article of trade or commerce.Agonistic Behavior: Any behavior associated with conflict between two individuals.Territoriality: Behavior in defense of an area against another individual or individuals primarily of the same species.Research: Critical and exhaustive investigation or experimentation, having for its aim the discovery of new facts and their correct interpretation, the revision of accepted conclusions, theories, or laws in the light of newly discovered facts, or the practical application of such new or revised conclusions, theories, or laws. (Webster, 3d ed)Orthodontic Brackets: Small metal or ceramic attachments used to fasten an arch wire. These attachments are soldered or welded to an orthodontic band or cemented directly onto the teeth. Bowles brackets, edgewise brackets, multiphase brackets, ribbon arch brackets, twin-wire brackets, and universal brackets are all types of orthodontic brackets.Graft Rejection: An immune response with both cellular and humoral components, directed against an allogeneic transplant, whose tissue antigens are not compatible with those of the recipient.Labor, Obstetric: The repetitive uterine contraction during childbirth which is associated with the progressive dilation of the uterine cervix (CERVIX UTERI). Successful labor results in the expulsion of the FETUS and PLACENTA. Obstetric labor can be spontaneous or induced (LABOR, INDUCED).Collective Bargaining: The process of negotiation between representatives of an employee organization, association or union, and representatives of the employer.Group Processes: The procedures through which a group approaches, attacks, and solves a common problem.Federal Government: The level of governmental organization and function at the national or country-wide level.Cooperative Behavior: The interaction of two or more persons or organizations directed toward a common goal which is mutually beneficial. An act or instance of working or acting together for a common purpose or benefit, i.e., joint action. (From Random House Dictionary Unabridged, 2d ed)Chad: A republic in central Africa, east of NIGER, west of SUDAN and south of LIBYA. Its capital is N'Djamena.International Cooperation: The interaction of persons or groups of persons representing various nations in the pursuit of a common goal or interest.Conservation of Natural Resources: The protection, preservation, restoration, and rational use of all resources in the total environment.United StatesGeography: The science dealing with the earth and its life, especially the description of land, sea, and air and the distribution of plant and animal life, including humanity and human industries with reference to the mutual relations of these elements. (From Webster, 3d ed)Climate: The longterm manifestations of WEATHER. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Knowledge: The body of truths or facts accumulated in the course of time, the cumulated sum of information, its volume and nature, in any civilization, period, or country.Philosophy, MedicalUncertainty: The condition in which reasonable knowledge regarding risks, benefits, or the future is not available.Southwestern United States: The geographic area of the southwestern region of the United States. The states usually included in this region are Arizona, California, Colorado, Nevada, New Mexico, Texas, and Utah.New York