structure. Their name is derived from their long‚ hollow structure with the walls formed by one-atom-thick sheets of carbon‚ called graphene. These sheets are rolled at specific and discrete ("chiral") angles‚ and the combination of the rolling angle and radius decides the nanotube properties; for example‚ whether the individual nanotube shell is a metal or semiconductor. Nanotubes are categorized as single-walled nanotubes (SWNTs) and multi-walled nanotubes (MWNTs). Individual nanotubes naturally align
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Nursing Care of the T-Tube after Cholecystectomy Also called a biliary draining tube. May be placed in the common bile duct after cholecystectomy or choledochostomy. The tube facilitates biliary drainage during healing. The surgeon inserts the short end (crossbar) into the common bile duct and draws the long end through an incision in the skin. The tube is then connected to a closed gravity drainage system. Post-operatively it remains in place between 7 to 14 days. Equipment Graduated collection
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of teenage death. Alcohol‚ the most widely used and abused drug among youth‚ causes serious and potentially life-threatening problems for this population. Motor vehicle crashes are the leading cause of death for teenagers. Society faces several questions‚ like why do teens drink‚ what are the results of teen drinking and driving‚ and how can society change this pattern. Every year hundreds of teens die. Apart from drinking and driving‚ teen suicide is the fastest growing killer of youth and if left
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Homeless: What Has Been Done To Decrease The Problem? One of the largest growing concerns in Toronto is the constantly increasing number of citizens who are finding themselves living on the streets. With the decrease in the number of available jobs‚ the population of homeless people has literally boomed. My questions are not as simple to answer as they may appear. Why is a large portion of our community forced to live on the streets? What has be done to decrease the problem? These are the questions
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Experiment Number 2 Date: Dec. 6‚ 2010 Objective: To determine the properties of colloids and how they function in physiological systems Materials: O.1 M CuSO4 * 10% skim milk mixture 3 M HAc 0.2 M K2Cr2O7 0.04 M AgNO3 0.02 M K2Cr2O7 * 1% Gelatin 0.01 M AgNO3 5 Test tubes Dialysis bag Observations: Part I. |Test Tube Number |CuSO4 Solution |Skim Milk |3 M HAc
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Copper-Silver Nitrate Reaction Introduction In this experiment copper wire will be placed in a solution of silver nitrate. This single replacement reaction will produce a blue solution of copper II nitrate and solid silver. By weighing the reactants before the reaction‚ the mass of silver produced can be predicted. This theoretical yield can be compared to the actual yield of silver. Purpose Students will compare the theoretical mass of silver with the actual mass of silver from the single
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weighing paper digital scales rubber tubing (hose) acetic anhydride filter paper Mel-temp apparatus 10- mL graduated cylinder large test tube medicine dropper | Compound | FW (g/mol) | MP (BP) | density | Hazards | | Acetanilide | 135.17 | 114 ºC | ---
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“Test-Tube Burgers” One summer when taking a trip to a friends country house for a weekend I took on the challenge of being a vegetarian. My friend‚ an only child‚ had been raised a vegetarian by parents who were also vegetarians; never once in his life had he eaten meat. Although the family was tolerant of whatever I did‚ I decided this was an opportunity to try it for myself and see what it would be. At the end of the few days I found it quite easy‚ although in reality I did not consume nearly
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beginning‚ for much of the essay I tended to rely heavily on solely descriptions‚ staying removed from the situation. While this can keep biases from clouding perception‚ being so far removed can also inhibit the ability to perform analysis due to not being fully submerged in the environment. I start the report with assumptions on the behavior of the young boy whom I nicknamed “Tube-Boy” as well as making assumptions about the players in the soccer field nearby. Starting with assumptions can lead to faulty
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Chest Tube Insertion‚ Infant A chest tube is a thin‚ flexible tube that is inserted into the space between lung and chest wall. Air or fluid can collect in this space and cause infants to have breathing trouble. Infants at risk for this complication include those who: • Have lungs that are not fully developed at birth. • Breathe in stool during the birth process (meconium aspiration). • Need to be on a machine to help them breathe (ventilator). • Have surgery on the heart or lungs
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