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A digitally reconstructed radiograph contains the ______ information and is considered ______ images.

In March of 2020, a student went into the lab and set up the two reactions below.  The first one turns cloudy after about 15 minutes.  The other remains clear.  The student decides to leave the reactions and go home for the day.  Then, when everything is shut down due to COVID, she cannot go back into the lab for two months.  When she finally returns both reactions are cloudy.  Explain what happened.

Choose all possible product(s) for the reaction shown below.  Choose all that apply.  

Choose the most stable conformation for the molecule shown below.    

The major product(s) for the reaction below should be [product] occurring from [mech] mechanism(s).  

You are called in on a Saturday afternoon for an emergency spinal cord compression to the patient’s T-12 thoracic spine. The doctor wants to simulate the patient on the linear accelerator as it would be too painful to move the patient to the simulator then the accelerator. Once you get the patient on the table, after signing an informed consent, you identify where the lesion is located in the spine, and take a portal image.  You are designing an AP/PA treatment portal as an open field, no MLC. What would be the portal design for this treatment for both the AP and PA portal? 

In lab, you purified a compound by recrystallization. You added hot solvent, completely dissolved your unknown, and removed it from the heat to cool.   Say that your lab partner got impatient and moved it to the ice bath while still hot.  The result would be:

Primary squamous cell carcinomas of the lung that are greater than three centimeters and have lymph node involvement at the time of diagnosis are usually located within the  

Choose the correct label for the following: nucleophile, electrophile, or neither.   CH3CH2+ [label1]   CH3C=CH [label2]   BH3 [label3]

 Radiation therapists must be able to identify which of the following:  the location of a tumor organs in close proximity to a tumor movement effects on a tumor