experimental design the best study for fentanyl exposure in the brain

My question is     Explain why you feel numbness when using a topically applied pain cream that contains lidocaine.

The endogenous ligand for an ion channel causes the influx of 50 Na+ ions per second. This ion channel has constitutive activity of 10 Na+ ions per second. If drug A binds to the ion channel and causes the influx of 50 Na+ ions per second, which of the following categories best describes drug A? Group of answer choices full agonist antagonist partial agonist inverse agonist

List the major classes of psychedelic drugs presented in chapter 8  of Julien's Primer of Drug Action and the respective mechanisms of action that differentiate them?

Can we use copper as treatment in Alzheimer Disease.

For the following research question: In communities with high rates of opioid addiction (P), does the establishment of supervised injection sites (I) compared to the absence of such facilities (C) lead to a reduction in fatal and non-fatal opioid overdose cases (O)? How can I use these research articles to write An introduction which includes (opening statement, thesis statement, summary of paper) A one-page appendix with a Prisma literature search graphic depicting the search process and results, not sure how to do a Prisma at all.  A concisely worded descriptive synthesis of the evidence regarding the topic of inquiry and a discussion of the implications for nursing practice, education, and research. (Synthesis will vary widely based on individual articles but should include the following elements; discussion/comparison of the study methods and populations. Commentary on the quality of the studies. Study findings are aggregated, discussed, compared/contrasted as appropriate. The…

Describe three ways to increase the depth of penetration of electrical impulses when using pad electrodes.

In a double blind clinical trial for a drug neither the subjects nor the researcher knows who is in the conrol group or the experimantal group both the experimental and the control group subjects get the drug that is under trial neither the control group nor the experimental group receive the placebo both the groups get placebo and only the researchers are aware of this fact, while both the groups are blinded of this fact both the experimental and control group subjects get placebo and the drug during any part of the study and are not aware of this double test

What are the differences between an MRI and a CAT; how are they used?

what is the use of AI in medical imaging