An institutional review board (IRB) is a panel of individuals who oversee research on human beings. IRBs can be seen in educational institutions that conduct research on human beings, along with pharmaceutical companies, hospitals and other organizations that use human beings in their research. The purpose of an institutional review board is to evaluate all proposed studies with human beings to confirm that they adhere to ethical guidelines, monitor ongoing research and periodically audit researchers, ensuring that all research carried out at the institution is legal and ethical.
Using quotation marks forces the search engine to search only for websites that have that specific phrase. If you don't use them then it will also search for those websites that have only parts of the phrase, but using the marks makes it better for your search.
It was postulated by the Psychologist called Irving Janis in 1972. Groupthink is when individuals come together to make certain decisions collectively while discarding their personal beliefs and making sure there is no form of dissent. This decisions however may not be the best or optimally efficient.
Answer: Batteries generate electricity by a chemical reaction. They can be connected inline to provide greater voltage, in parallel to provide greater amperage.