1. Our solar system is made up of the sun and everything that travels around it. This includes eight planets and their natural satellites such as Earth’s moon; dwarf planets such as Pluto and Ceres; asteroids; comets and meteoroids 2. The sun is the center of our solar system. It contains almost all of the mass in our solar system and exerts a tremendous gravitational pull on planets and other bodies. 3. Our solar system formed about 4.6 billion years ago. 4. The four planets closest to the Sun
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REPRODUCTIVE SYSTEM Reproductive System A system of sex organs within an organism which work together for the purpose of sexual reproduction. Many nonliving substances such as fluids‚ hormones‚ and pheromones are also important accessories to there productive system. Sexual reproduction produces new individuals - Gametes (sperm & egg) formed by testes and ovaries - Fertilization produces one cell (a zygote)with one set of chromosomes from each parent - Creates genetic variation . Gonads produce
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An economic system in which economic decisions are made by the state or government rather than by the interaction between consumers and businesses. Unlike a market economy in which production decisions are made by private citizens and business owners‚ a centrally planned economy seeks to control what is produced and how resources are distributed and used. The production of goods and services is undertaken by state-owned enterprises. Centrally planned economies assume that the market does not work
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EXPERT SYSTEMS What is an expert system? The most recent addition to the circle of information systems is the expert system. Expert systems are associated with an area of research known as artificial intelligence. We introduced expert systems and artificial intelligence in the World of computers.” Artificial intelligence is the ability of a computer to reason‚ to learn‚ to strive for self-improvement‚ and to simulate human sensory capabilities. Like the DSS‚ expert systems are computer-based
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Fundamentals of Information Systems Fourth Edition Chapter 2 Hardware and Software Principles and Learning Objectives • Information system users must work closely with information system professionals to define business needs‚ evaluate options‚ and select the hardware and software that provide a costeffective solution to those needs – Identify and discuss the role of the essential hardware components of a computer system – List and describe popular classes of computer systems and discuss the role
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stages of transportation systems research are suggested below. Stage 1.Identification of objectives and functioning of the subject of research‚ defining the criterion of system’s efficiency. Stage 2.Defining the borders of the system. Stage 3.Identification of the structure of environment. Stage 4.Research of the structure of transportation system; identification of its elements. Stage 5.Investigation of the characteristic interrelations between the elements of the system; design of the mathematic
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SYSTEMS THEORY Whitchurch‚ G. G.‚ & Constantine‚ L. L. (1993). Systems theory. In P. G. Boss‚ W. J. Doherty‚ R. LaRossa‚ W. R. Schumm‚ & S. K. Steinmetz (Eds.)‚ Sourcebook of family theories and methods: A contextual approach (pp. 325-352). New York: Plenum Press. Three Distinct But Closely Interrelated Theoretical Legacies Information theory: focuses on the reduction of uncertainty which is achieved by the acquisition of information. Cybernetics: a science of communication concerned
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Ndede2013 1 THE SYSTEM CONCEPT Definition: The term system has its roots in the Greek word systema‚ which means an organised relationship among functioning units or components. Presently there are many definitions given to the word system. Some dictionary definitions include: - 1. A group of things or parts working together in a regular relation‚ e.g. the digestive system 2. An ordered set of ideas‚ theories‚ principles etc. 3. Orderliness An analysis of many such definitions reveals the
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Physical Education Chapter 1: The musculoskeletal system 1.3 The muscular system: functions‚ types and major muscle groups Functions Body movement (voluntary control) Adequate posture Essential bodily functions (involuntary control) Types Smooth- digestive system‚ walks of vital organs and involuntary Cardiac- muscle of the heart‚ involuntary Skeletal (striated)- voluntary movements‚ development and maintenance of good posture Involuntary – no conscious control
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Expert system An expert system is software that attempts to provide an answer to a problem‚ or clarify uncertainties where normally one or more human experts would need to be consulted. Expert systems are most common in a specific problem domain‚ and is a traditional application and/or subfield of artificial intelligence It is also Defined . An expert system is a computer program conceived to simulate some forms of human reasoning and capable to manage an important quantity of specialized knowledge
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