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    Agar Cube Diffusion

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    Research Question What is the effect of surface area on volume ratio over rate of diffusion of pigment regarding the agar cube, measure by percentage volume of diffusion through time? Hypothesis The experiment involves the use of agar cubes. If the cells of these cubes desire a great surface area to volume ratio in order to carry out their needs (exchanging materials with the environment, receiving oxygen, getting rid of waste products), the SA:V ratio will be larger. Consequently, the rate of…

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    Use a 20ml volumetric pipet to measure the required volume of decarbonated soda and put it in a 250ml beaker. Add distilled water using a graduated cylinder. Place pH probe in the soda solution. Put beaker on a magnetic stir plate (keep probe away from the stirrer). Fill buret and align the tip right above the drop counter. Record the initial volume of NaOH (Vi). Turn on the stir plate to 300rpm and program Measurenet. Carefully open stopcock so it…

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    Boyle's Law

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    Unlike solids and liquids, gases are known to have both variable volume and pressure. The gas laws were formulated in the late 18th century by various scientists to develop a relationship between the volume, pressure, temperature, and the number of moles of a gas.1 This has allowed scientists today to manipulate these variables in controlled lab settings, to utilize these laws in new innovations such as ventilation systems, and to explain observed biological phenomenon like breathing. Boyle’s…

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    Mein Kampf's My Struggle

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    “Mein Kampf”, or in the english translation,“My Struggle,” is an autobiographical book by Adolf Hitler made up of two volumes in which a summation of the two shows lacking boundary. In other words, the volumes are repetitious and generally focus around Hitler’s political views, intense patriotism, and worldviews. To examine the volumes to which these attributes belong, is the first volume, which focuses primarily on Hitler’s youth; where frequent anecdotes and tangents are taken to express…

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    physiological aspects: from mechanical and electrical systole, to preload and afterload. From there I will describe four modalities in which systolic function is measured and assessed. This will also include any formulas used to determine needed volumes and percentages. Lastly I will cover three causes of systolic dysfunction. Systolic function in its simplest terms is, how well the ventricle contracts. However,…

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    the hypothesis there is a difference in the mean of IV volume infused by ethnicity. A ratio between groups and within groups reflects an F (5, 93) =.211 which is small suggesting there is no significant difference. The p value is (p =.957) > .05 therefore, there is no significant difference in the mean of IV fluid volume based on ethnicity. Therefore the null hypothesis is accepted which states there is no difference in the mean IV fluid volume based on ethnicity. A bar graph was completed…

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    seen a large decline in mail volume and must change the technology they use in the changing world. Technology has changed over the past years through every country in the changing world. The decline of mail volume being sent has effected the United States Postal Service dramatically. USPS has "experienced a 13% drop" and "lost $13.8 billion" in mail volume (Source C). The drop proved to be double of any previous decline in USPS. In the graph from 2007-2009, mail volume and employees decline…

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    Lungs And Homeostasis

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    Our bodies maintain many complex systems in order to have a consistent internal environment to achieve homeostasis. The lungs which are part of the respiratory system play a crucial role in homeostasis by controlling our breathing. The lungs provide the appropriate interface for gas exchange to occur, this includes the delivery of oxygen to the blood and the removal of carbon dioxide carried in the blood to the alveoli which is then expired out of the body. The removal of carbon dioxide also…

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    events (Eichenbaum, 1999; Maguire, Burgess & O’Keefe, 1999; Squire, 1992, cited in Rubin, 2015). Also, hippocampus plays an important role in memory process. Besides that, research have also noted that right hippocampal volume is related to spatial memory whereas the left hippocampal volume is associated with verbal…

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    Marsha McMillen Unit 2 Psychology Assignment My personal feelings about regulating the volume on earbuds and earphones, I think it is a good idea, I am a grandmother of two older grandsons and when they were in high school, they would listen to their walk men with the volume so high that I could hear the music across the room. I was constantly telling them to turn the volume down, but they never listen to me at all. Sometimes I think that they have some hearing loss today, because when you…

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