AbstractBackground pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH) are fatal‚ no curable‚ but treatable diseases that strongly affect the patients. Objective. To decribe patient’s experience of information relating to PAH or CTEPH. Methods. A qualitative method using content analysis was applied. Seventeen patients (thirteen women an four men) aged 28-73 years from a regional PAH center were individually interviewed. Results. Three categories that
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Inert Gases Inert Gases and Characteristics • The inert gases are obtained by fractional distillation of air. • They are often used aboard chemical tankers and product carriers (smaller vessels). • Helium‚ Neon‚ Argon‚ Krypton‚ Xenon‚ Radon and are inert gases. • Duplet (Helium) or Octet • Full valence shell • • • • Weak interatomic force Very low melting and boiling points. Monatomic gases under standard conditions Helium has several unique qualities when compared with
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Nobel gases are a group of six elements in group VIIIA of the periodic table; they are in the column farthest to the right. It is a collection of five elements: argon‚ helium‚ krypton‚ neon‚ radon‚ and xenon. Unlike most elements‚ the noble gases are monatomic‚ which means the element is a single atom instead of being in pairs or a combination. The atoms have stable configurations of electrons. In other words‚ under normal conditions they do not form compounds with other elements. They got there
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"Kingly Gases" What is chemistry? According to dictionary.com‚ the definition of chemistry- is the science that deals with the composition and properties of substances and various elementary forms of matter. Chemistry is everywhere. For example: in a kitchen‚ it is in everybody’s chemically treated water‚ or fruits grown with fertilizers and pesticides‚ or polymer material in the marble counter tops. Again‚ Chemistry is everywhere. If a person wanted to go deeper into chemistry‚ they probably would
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events like super-storm Sandy continue to increase in their frequency and severity? Many modern scientists attribute these dangerous environmental trends of global warming to the ‘greenhouse effect’. The ‘greenhouse effect’ results from greenhouse gases such as carbon dioxide rising into the atmosphere‚ trapping infrared radiation from the sun‚ and emitting ultraviolet radiation that can puncture the earth’s stratospheric ozone layer. A healthy ozone layer should prevent this from happening‚ but the
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desaturated to 88% requiring oxygen support increased to 4 liters. Her baseline systolic blood pressure is 100-110 and it was measured in the low 90’s in the ED. She also had an increased temperature of 38.2 degrees Celsius. As a result of L.M.’s increase in temperature‚ heart rate‚ and respiratory rate accompanied with pneumonia‚ the emergency department treated her for sepsis. Labs drawn showed an increase in white blood cells and lactic acid‚ as well as an increase in PC02 and a decrease in PO2. She
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Poisonous gases changed the experiences of the people in the war for the worse. Breaking on impact‚ the canisters released yellowish green fumes that wafted slowly toward the French and African troops near the Belgian town of Ypres. As the fumes reached the Allied forces‚ soldiers realized the cloud was poisonous chlorine gas. Quoted in Dooly’s Great Weapons of World War I‚ one French doctor at Ypres expressed his horror: “I had the impression that was looking through green glasses. At the same time
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Greenhouse gases Carbon dioxide is a colourless‚ odourless gas that makes up .04 percent of the earth’s atmosphere. It’s released by the breakdown of organic materials‚ by animals when they respire‚ and by the burning of fossil fuels. Carbon dioxide isn’t toxic—after all‚ we exhale it with every breath and use it to make our drinks fizzy. However‚ carbon dioxide is considered a pollutant because‚ as a greenhouse (heat-trapping) gas‚ it’s a significant contributor to global warming. In the last 150
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Experiment #1 Date: September 13‚ 2011 Title: Diffusion in Gases I Aim: To observe the diffusion of bromine Apparatus and Materials: Glass tube‚ bromine‚ fume chamber Diagram: Procedure: -Liquid bromine was placed in a jar and covered Observations: When first placed in the jar the original color of bromine was red-brown. As it began to diffuse its color changed from dark brown to a lighter brown until it becomes a yellow-like orange color. As it was diffusing liquid bromine changes its state
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Purpose: The purpose of this experiment was to test and observe the physical and chemical properties of gases‚ and to use these properties to identify these gases when they are encountered. Procedure: Create a data table similar to that in the lab assistant to record your observations. Gather the following lab equipment: Goggles‚ test tubes‚ 24 well plate‚ Gas assembly with copper and plastic tubing and a #00 stopper‚ short stem pipet‚ rubber stopper #00 with one hole and a pipet tip with
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