Reference no: EM131665644
Assignment
1. Is it essential to acquire data from all sides (300o angle) for accurate reconstruction in SPECT? Can it be less than 180o ?
2. What is the primary benefic in using a dual- or triple-head scintillation camera in SPECT? What additional problems , if any, do these entail?
3. Why is quality control important in SPECT?
4. What two factors make quantitation with SPECT less accurate than PET?
5. Why is the resolving time of a coincidence circuit an important parameter in a PET scanner?
6. List the various stages in the development of radiation injury.
7. For the same radiation dose, what are the other factors that can modify the biological effects or their intensity?
8. Generally , below what dose are acute effects not observable?
9. Name the most common late biological effect and give its probability of ocurance after 1 rem of total body irradiation at low dose rate to a general population.
10. What is the most sensitive period during pregnancy for the development of a fetal abnormality?
11. What factor relates absorbed dose to equivalent dose or dose equivalent?
12. What is tissue weighting factor and why is it needed?
13. Effective doses from an internally absorbed radionuclide have to be modified. Why? How ?
|
Calculate the minimum price wild orchid should accept
: Suppose Wild Orchid had been working at less than full capacity, producing 9,500 units of Everlast, at the time the Apex offer was made.
|
|
Research about the business publications
: Select five quotes from five different articles and type out the quote, the speaker, and the source.
|
|
How will you evaluate your recommendation model
: Assume that you have joined Hong Kong Broadband after graduation. How will you evaluate your recommendation model? Describe your strategy
|
|
Greenspan policies led to the last recession
: There was a theory put forward by some that Greenspan's policies led to the last recession? Can you confirm (or deny) this using your research?
|
|
Why is quality control important in spect
: Why is quality control important in SPECT? For the same radiation dose, what are the other factors that can modify the biological effects or their intensity?
|
|
Gdp indicates the economy is in recession
: In fact, two consecutive quarters of decline in GDP indicates the economy is in recession. But, does only real GDP goes down or nominal GDP also goes down?
|
|
Calculate the absolute value of the price elasticity
: In consequence, the daily quantity of visitors decreases from 2,200 to 1,800. Calculate the absolute value of the price elasticity of demand.
|
|
Define what types of information does each tool collect
: How are the data collection tools similar, How are they different, What are the strengths and weaknesses of each tool for each area
|
|
Compute the amount of depreciation expense
: Assume the company had used straight-line depreciation during 2017 and 2018. Compute the amount of depreciation expense for the 2019 income statement
|