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The membranous sac that surrounds the heart is the ____________.

Electromyography records the strength of muscle contractions as the result of electrical stimulations.

The right ventricle ___________________________.

The _______________ valve is also known as the bicuspid valve.

The muscle of the heart receives its blood supply from the ____________.

Which form of fibrillation is the cause of many sudden cardiac deaths?

Valve that controls the opening between the left atrium and left ventricle.

4versionA. Analyzing Polymers -PC8 Below is a DSC thermogram of polyethylene-like polycarbonates with varying amounts of methylene in their polymer sequence (where n=2,4,6,8, or 10) according to the general structure also shown below. Note that no glass transition temperature is indicated on the thermogram for any of the polymers.  A. (.4 pt) What is the Tc for the polymer PC8? B. (.4 pt) What is the Tm for the polymer PC8? C. (.6 pts) Which polymer has the highest percent crystallinity and briefly describe why? D. (.6 pts) Which polymer would be more susceptible to creep and briefly describe why?       The same polymers were also analyzed with XRD and compared to high-density polyethylene (HDPE) E. (0.5 pts) Based on these results, which polymers have crystal structures similar to HDPE and which likely have different crystal structures? F. (0.5 pts) The plane indicated around 2Ɵ=30° has a miller indices of 210. Draw the plane.  G. (1 pts) You’ve determined your % crystallinity for your PC8 sample is 54% and has a density of 120,000 g/cm3.  Calculate the density of the density of completely amorphous PC8 if the density of completely crystalline PC8 is 200,000 g/cm3? Show all work H. (0.5 pts) You decided to run gel filtration chromatography (a form of size-exclusion chromatography) on your PC samples, but you forgot to label your samples. Which of your PC samples do you think corresponds to the darkest gray (furthest to the left) in your GPC plot and why?   

Take a moment to show your handwritten formula sheet to the camera (show front and back).  Now do a full room scan of your testing environment. You SHOULD have done this already, but Honorlock has some issues collecting room scan data sometimes, so we’re repeating this step manually. You should do a 360 film of your testing environment. Make sure any secondary monitors are turned off. You should film both above and below your work surface and any external devices should be out of reach. Your final camera angle should include your face and your entire work area including your scratch paper and your formula sheet.  Now number your other pages for scratch work with the page number circled on the upper left of each page front and back. You can have up to 10 sheets of paper, so put 1 on the first side and 2 on the back side for up to a total of 10 sheets of paper and 20 sides if you include the front/back. Show each blank numbered page front and back to the Honorlock video camera monitor.  When you are completing different problems, write the problem number and then draw a square around the problem number so that we can easily tell the difference between page number and problem number in your scanned results.  Please write “I understand that I am bound by the ASU honor code and will not use any unallowable outside resources” at the top of the page 1 and then sign and date your name.  In addition to your formula sheet, I’ve also attached an optional formula sheet here for you to use if you so choose. 

4versionb. Analyzing Polymers -PC12 Below is a DSC thermogram of polyethylene-like polycarbonates with varying amounts of methylene in their polymer sequence (where n=2,4,6,8, or 10) according to the general structure also shown below. Note that no glass transition temperature is indicated on the thermogram for any of the polymers.  A. (.4 pt) What is the Tc for the polymer PC12? B. (.4 pt) What is the Tm for the polymer PC12? C. (.6 pts) Which polymer has the highest percent crystallinity and briefly describe why? D. (.6 pts) Which polymer would be more susceptible to creep and briefly describe why?       The same polymers were also analyzed with XRD and compared to high-density polyethylene (HDPE) E. (0.5 pts) Based on these results, which polymers have crystal structures similar to HDPE and which likely have different crystal structures? F. (0.5 pts) The plane indicated around 2Ɵ=21° has a miller indices of (110). Draw the plane.  G. (1 pts) You’ve determined your % crystallinity for your PC12 sample is 62% and has a density of 140,000 g/cm3.  Calculate the density of the density of completely amorphous PC12 if the density of completely crystalline PC12 is 190,000 g/cm3? Show all work H. (0.5 pts) You decided to run gel filtration chromatography (a form of size-exclusion chromatography) on your PC samples, but you forgot to label your samples. Which of your PC samples do you think corresponds to the lightest gray (furthest to the right) in your GPC plot and why?