Which of the following is NOT one of the 4 main purposes that margins serve?

In the article by Ulrichsen on the US and the Gulf, Ulrichsen argues that the significance of personalized ties among President Trump’s inner circle (he likely means the role played by his son-in-law Jared Kushner as his personal envoy to the region) provided an opportunity for which key Middle Eastern actors to shape the administration’s thinking on regional issues? 

Which of the following is NOT one of the 4 main purposes that margins serve?

If you add solute to a solution, and the concentration of the solution increases, the solution is 

Definitions are common in communicating policies and standards for the record. Definitions also have many uses outside of legal or contractual contexts such as clarifying a description of a new development or new technology in a technical field. Definitions help specialists communicate with less-knowledgeable readers.

Many Western hand gestures, such as the okay sign, are considered obscene in other cultures.

A patient has just arrived in the emergency department with the diagnosis of acute angle-closure glaucoma.  Which of the following classifications of medications would you expect the physician to order to lower IOP? (select all that apply)

Signal words include danger, warning, caution, and note. Danger is used to alert readers about an immediate and serious hazard that will likely be fatal. Warning is used to alert readers about the potential for serious injury or death or serious damage to equipment. Caution is used to alert readers about the potential for anything from moderate injury to serious equipment damage or destruction. Note is used for a tip or suggestion to help readers carry out a procedure successfully.

If I had 20 graham cracker squares, 20 marshmallows, and 20 chocolate pieces, how many s’mores could I make before I ran out of ingredients? 2 Grahams + 1 Marshmallow + 4 Chocolate Pieces –> 1 S’more

A mixture of helium, nitrogen and oxygen has a total pressure of mmHg. The partial pressure of helium is mmHg, and the partial pressure of nitrogen is mmHg. What is the partial pressure of oxygen (in mmHg)  in the mixture?