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Free research papers and essays on topics related to: plasma

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  • Plasma - 563 words
    Plasma Matter consists of atoms held together by electromagnetic forces. How tight these bonds are, determines which of the four states: solid, liquid, gas and plasma, matter exists as. Plasma is only found naturally in the corona and cores of stars and in bolts of lightning. There are three classic states of matter: solid, liquid, and gas; however, plasma is considered by some scientists to be the fourth state of matter. The plasma state is not related to blood plasma, the most common usage of the word; rather, the term has been used in physics since around the 1920s to represent an ionized gas. Space plasma physics became an important scientific discipline in the early 1950s with the disco ...
    Related: plasma, nuclear power, nuclear fusion, naturally, ball
  • The Technology Of Plasma Display Panels, Or Pdps, Is A Very New One The - 1,258 words
    The technology of Plasma display Panels, or PDPs, is a very new one. The release of these flat paneled televisions began around 1996. There isnt yet a company who has come out with a display panel with the contrast and/or color quality of the regular CRT displays. PDPs are hoped to obtain this quality through more advanced research, to allow them to lower prices and have them hang on the walls of all homes. This would eliminate the need for TV stands and the extremely heavy, large screen CRT TVs, thus also cutting down on shipping charges for mail order. PDPs have a somewhat similar function to that of the CRT with the process of exciting Phosphors, to glow and produce an image. Plasma Displ ...
    Related: display, plasma, technology, computer graphics, large screen
  • Downs Syndrome, Turners Syndrome, And Redgreen Color Blindness - 682 words
    1.) Three genetic disorders are Down's syndrome, Turner's syndrome, and Red-green color blindness. They are all caused by undesirable genes inherited by normal genetic mechanisms. These mutations are usually recessive because dominant ones usually die. Turner's Syndrome is caused by faulty cell division known as non disjunction. This occurs when chromosomes fail to separate. IN this disorder, the affected have one "x" chromosome. The effect are an underdeveloped female, mental retardedness, and sterility. Down syndrome is a condition caused by an oddosome that occurs on the pair #21. It results in severe abnormality physical and mental defects. For example, shorter bubble-shape eyes, short f ...
    Related: blindness, down syndrome, downs, cell division, external environment
  • Absorptive And Postabsorptive States - 383 words
    Absorptive And Postabsorptive States Absorptive and Postabsorptive States The absorptive state is the time during and right after eating a meal. The absorptive state lasts for four hours, during and after each meal. During this state glucose is the most important energy fuel. Amino acids and fats are used to form degraded protein, and small amounts are used to provide ATP. Metabolites are transformed to fat if they are not used for anabolism. Glucose is formed by the conversion of fructose and galactose, which are stored in the liver from the entrance of monosaccharides. Glucose is released into the blood, or converted to glycogen and fat. Some glucose enters the liver and is used for energy ...
    Related: nervous system, blood sugar, sympathetic nervous system, hormone, promoting
  • Active Transport - 1,302 words
    Active Transport Since the cell membrane is somewhat permeable to sodium ions, simple diffusion would result in a net movement of sodium ions into the cell, until the concentrations on the two sides of the membrane became equal. Sodium actually does diffuse into the cell rather freely, but as fast as it does so, the cell actively pumps it out again, against the concentration difference. The mechanism by which the cell pumps the sodium ions out is called active transport. Active transport requires the expenditure of energy for the work done by the cell in moving molecules against a concentration gradient. Active transport enables a cell to maintain a lower concentration of sodium inside the c ...
    Related: transport, early stages, carbon dioxide, carried away, chloroplasts
  • Aids - 1,564 words
    Aids Sign up now for a free trial. Date Smarter! AIDS "Somewhere among the million children who go to New York's publicly financed schools is a seven-year-old child suffering from AIDS. A special health and education panel had decided, on the strength of the guidelines issued by the federal Centers for Disease Control, that the child would be no danger to his classmates. Yet, when the school year started on September 9th, several thousand parents in two school districts in the borough of Queens kept their children at home. Fear of plague can be as pernicious, and contagious, as the plague itself(Fear of dying 1)." This article was written in 1985. Since then much has been fou ...
    Related: aids, aids hiv, social class, blood transfusion, matchmaker
  • Aids And Retroviruses - 1,241 words
    AIDS And Retroviruses Today, tens of millions of people around the world are going to die young because they are infected by HIV, the virus that causes AIDS. The primary AIDS virus is HIV-1, which can be spread via sexual intercourse or drug use (activities, which result in body fluid exchange like blood and semen). HIV can also be passed from mother to child and can also be acquired during blood transfusions. AIDS, Acquired Immune Deficiency Syndrome, is a virus that causes a loss of protection against disease causing microorganisms. People who are infected by AIDS usually have a decline in the number of T-cells that are responsible for their immune system. Because the virus reproduces by a ...
    Related: aids, immune system, deficiency syndrome, fact sheet, mediate
  • Anatomy Of A Muscle Cell - 1,017 words
    Anatomy Of A Muscle Cell John Centore1 Anatomy and Physiology Dr. Jain Anatomy of Muscle Cells There are three types of muscle tissue in the human body. These muscle tissues are skeletal muscles, smooth muscles and cardiac muscles. Each of these muscle tissues has it very own anatomical makeup, which vary from muscle to muscle. The muscle cells in a muscle are referred to as muscle fibers, these fibers are skeletal muscle fibers, smooth muscle fibers and cardiac muscle fibers. The anatomy of a skeletal muscle fiber is formed during embryonic development. Skeletal muscle fibers arise from a hundred or more small mesodermal cells called myoblasts. The mature skeletal muscle fiber has a hundred ...
    Related: anatomy, anatomy physiology, cell, cell division, muscle, muscle growth
  • Anesthetics - 1,467 words
    ... amount of side effects. Throughout the country there are many different types of anesthetics used. Some of the most popular anesthetics are used in U.S. hospitals across the region. Among general anesthetics, cyclopropane, ethylene, and halothane are the most popular. Cyclopropane and ethylene are used with caution because they are highly explosive. Halothane is the most prefered over the three because it is neither inflammable or explosive. Amongst intravenous anesthesia, Pentothal sodium is the most popular. This is because it produces the least amount of side effects during and after a surgical procedure. Block anesthesia is the most common and popular of the group known as local anes ...
    Related: different types, new england, side effects, concentration, 1984
  • Bacteria Reproduction - 916 words
    Bacteria Reproduction Bacteria are microscopic singular celled organisms grouped in the prokaryote kingdom. They have a seemingly simple internal structure but that is not so the internal structure of a bacterium is quite complicated . Bacterial growth is generally studied in cell cultures by "visible count" estimation which shows an apparent growth curve. (Stephenson 50) The growth curve shows the stages of bacterial growth within a cell culture. (Thimann 623). Bacteria can survive in a number of different extreme environments from extreme heat to little water. Bacterium have a internal structure that is more complicated than it seems at first. The first part of the bacterium is the plasma ...
    Related: bacteria, reproduction, salt lake, different stages, metal
  • Bees To Honey - 1,241 words
    Bees To Honey Nearing my father-in-laws house, I was surrounded by a concrete jungle. Tax services, restaurants and shopping centers were closing in on me. I then turned the corner onto Cherry Street. This put me on a residential block. A man was walking his dog and a family with young children was returning home from an unknown adventure. Little did I know I was about to embark on a journey all my own. Over twenty-years ago, my father-in-law, Lynn Cheatum, was helping a neighbor cut down a dead tree. In this dead tree was a colony of bees and a lot of honey. " I was fascinated by it, " Lynn said recalling the incident. He then began telling me how his curiosity of bees had always been there ...
    Related: bees, honey, shopping centers, blood pressure, allergic
  • Biology Molecule - 1,080 words
    Biology Molecule Unit 1 -man is high 50s to 60% water -distribution in body divided into 3 compartments: 1) intracellular - 28 litres 2) intercellular/interstitial fluid - 11 litres - 80% 3) blood plasma - 3 litres - 20% -women contain less water than men -organisms can contain 60-80% water -bacteria have lots of water -fat cells have little -waters properties result from its structure and molecular interactions -water is polar -polar covalent bonds and asymmetrical shape give it opposite charges on opposite sides -electrons spend more time around O giving H a slight positive charge -hydrogen bonds form between the oxygen of one molecule and the hydrogen of another -cohesion: substance being ...
    Related: biology, molecule, nucleic acids, human body, atom
  • Black Holes - 1,516 words
    ... n in space. At this exact point in time, high amounts of radiation are given off, and with the proper equipment, can be detected and seen as an image of a black hole. Through this technique, astronomers now believe that they have found a black hole known as Centaurus A. The existence of a star apparently absorbing nothingness led astronomers to suggest and confirm the existence of another black hole, Cygnus X1. By emitting gravitational waves, non-stationary black holes lose energy, eventually becoming stationary and ceasing to radiate in this manner. In other words, they decay and become stationary black holes, namely holes that are perfectly spherical or whose rotation is perfectly uni ...
    Related: black hole, black holes, theory of relativity, stephen hawking, uniform
  • Blood Is A Fluid Substance That Circulates In The Arteries And Veins Of The Body Blood Is Bright Red Or Scarlet When It Has B - 1,393 words
    Blood is a fluid substance that circulates in the arteries and veins of the body. Blood is bright red or scarlet when it has been oxygenated in the lungs and passes into the arteries; it becomes bluish red when it has given up its oxygen to nourish the tissues of the body and is returning to the lungs through the veins and the tiny vessels called capillaries. In the lungs, the blood gives up the carbon dioxide wastes it has taken from the tissues, receives a new supply of oxygen, and begins a new cycle. This movement of blood is brought about by the coordinate activity of the heart, lungs, and blood vessels. Blood is composed of a yellowish fluid, called plasma, in which are suspended the mi ...
    Related: blood, blood cells, blood transfusion, blood type, body weight, bright, fluid
  • Cancer - 1,605 words
    Cancer Final Draft T. J. Cox The problem is cancer. Cancer is the second leading cause of death in the world and my interest in the subject is simple. My mother is the most resilient person I have ever met. Any time I need any kind of inspiration, I need only to think of her. When she was eighteen she was diagnosed with Hodgkins disease. The doctors gave her a less than thirty percent chance of living. Since then she has had cancer three other times. Breast cancer twice in 85 and 90, and most recently, colon cancer two summers ago. She has had many different treatments including chemo and radiation therapy as well as surgery to remove lumps in both breasts and her colon. What is cancer? Ther ...
    Related: breast cancer, cancer, cancer therapy, colon cancer, radiation therapy
  • Cells Of The Human Body - 2,250 words
    Cells Of The Human Body Cells are the basic living units of all plants and animals. The cell is the structural and functional unit of all living organisms. There are a wide variety of cell types, such as nerve, muscle, bone, fat, and blood cells. Each cell type has many characteristics, which are important to the normal function of the body as a whole. One of the important reasons for maintaining hemostasis is to keep the trillions of cells that form the body functioning normally. An averaged size cell is one-fifth the size of the smallest dot you can make on a sheet of paper with a sharp pencil. Although cells may have quite different structures and functions, all cells share some common ch ...
    Related: blood cells, cell division, human body, genetic information, deoxyribonucleic acid dna
  • Cells Of The Human Body - 2,204 words
    ... lum of skeletal muscle stores calcium ions that function in muscle contraction. GOLGI APPARATUS The Golgi apparatus is composed of flattened membranous sacs, containing cisternae, that are stacked on each other like dinner plates. The Golgi apparatus modifies, packages, and distributes proteins and lipids manufactured by the rough and smooth endoplasmic reticula. Proteins produced at the ribosomes of the rough endoplasmic reticulum are surrounded by a vesicle, or little sac, that forms from the membrane of the endoplasmic reticulum. The vesicle moves to the Golgi apparatus, fuses with the membrane of the Golgi apparatus, and releases the protein into the cisterna of the Golgi apparatus. ...
    Related: blood cells, cell division, human body, white blood cells, health care
  • Changes Of Matter State - 1,344 words
    Changes Of Matter State To define matter, one would say that it is something that occupies space and has weight. Matter naturally occurs in three phases: solid, liquid, and gas. Changing from a solid to a liquid, liquid to gas, etc. can be referred to as a change of state. Changes of state (or phase) effect our everyday lives. This chapter on changes of phase should actually be called Energy Transfer. The whole basis on changing a substance's state is that it is using energy to get from one state to another. To understand the "real" difference in the phases of matter, you must understand the difference in the energy of the phases. Energy is found inside matter. You can think of this energy a ...
    Related: physical change, kinetic energy, atmospheric pressure, different levels, stick
  • Chemistry Research - 2,121 words
    Chemistry Research CHAPTER 32 The tallest tree is the Redwood (Sequoia sempervirens) approx 110 m The tallest Angiosperm is the Australian Eucalyptus regnans Water Uptake and transport (Fig. 32.1) = water is essential because: transport solute, cool the body, photosynthesis and Turgor pressure Osmosis- movement of H2) through a semi-impermeable membrane Osmotic potential ( o)-depend on dissolve solute: Hi concentration means more negative o. Isoosmotic-two solution with same o; Hypoosmotic- solution that has a less negative o(more +) Turgor Pressure -hydraulic pressure result from water up take, cell turgid; analog to air pressure in a tire Water Potential ( )-Overall tendency of a solution ...
    Related: chemistry, respiratory system, nervous system, endocrine system, poison
  • Chemistry Research - 2,013 words
    ... ng; use tissue rich in Mit/blood supply and Thermogenin. COLD vs HOT- Fig. 37.21 THERMAL INSULATION AND RATE OF HEAT LOSS = Thermal energy is release by body to it's environment = Muscle contraction or change blood flow to skin; WOLF-constrict Blood vessel in its feet at above 0 C = Elephant, Rhinos, water Buffaloes have thick layer of fur; so they wallow in water = Sweating, panting are last resort use bu animals in hot climate or habitat (H2O evaporate quickly) THE VERTEBRATE THERMOSTAT- Fig 37.22/37.23 = All animals that thermoregulate must have a regulatory system; Info get from Hypothalamus-integration center In Humans: If glands is cool BT rises (constriction of Blood vessels and i ...
    Related: chemistry, body weight, biological clock, genetic diversity, orange
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