Give and describe the two main mechanisms of surface enhanced raman spectroscopy
Give and describe the two main mechanisms of surface enhanced raman spectroscopy
Describe with appropriate diagrams, the concept of Raman scattering spectroscopy. Name 2 primary differences between Raman and Infra-red spectroscopy. What is the fundamental property of a molecule that is probed by Raman scattering? [6 Marks]
(i) Describe with appropriate diagrams, the concept of Raman scattering spectroscopy. Name 2 primary differences between Raman and Infra-red spectroscopy. What is the fundamental property of a molecule that is probed by Raman scattering? [6 Marks] (ii) What are the three possible deviations from the Beer Lambert law? Explain why they might arise. Give an example using chemical equations of a deviation in the Beer Lambert Law due to a chemical shift. [
(5 points) Identify two advantages of using Raman spectroscopy over Infrared spectroscopy for chemical analysis.
4) Select the expressions that describe the four main recombination mechanisms for semiconductors for direct and indirect Auger and surface recombination, from the following list and indicate which expression relates to which type of recombination. Define each term: I = 1/ Vth Or Nur S= Vth Our Ntr To 1/NA in p-type material R = Bn’p or Bp?n
A) What is the main effect on systemic hemodynamics from left heart failure? B)Describe the mechanisms behind two of the systemic compensatory mechanisms triggered by left heart failure (How does the body try to compensate?).
An echelle monochromator is typically used for atomic emission spectroscopy. What are the two main reasons for this?
Describe the main mechanisms by which newly synthesized proteins are transported from the cytosol to mitochondria and outline the importance of signal sequences and protein processing in the localization of proteins within the different compartments of the mitochondrion.
Explain the two main mechanisms of gene duplication (not polyploidy) described in class. How can you identify which mechanism produced a given gene? That is, describe all of the differences you would expect. What is the significance of gene duplication to evolution?
Describe the operation of the enhanced for loop and explain why it’s especially useful with arrays. Explain when you need to implement the Comparable interface in a class you create. Describe the difference between a rectangular array and a jagged array, and explain the difference in how you create them. Describe the similarities and differences between arrays and collections. Name the two main types of collections defined by the collection framework and explain how they differ.
Define, Describe, Identify ( give an example and an illustration if possible) Main effects Simple main effects Interaction (factorial) Post hoc test Test: Validity Test: Reliability