|Cardiac ischemia is a condition in which the blood reaching to heart muscle decreases. Coronary ischemia is a medical term for not having enough blood through the coronary arteries. This occurs when the blood flow through one or more of the blood vessels that lead to your heart (coronary arteries) is decreased. This leads to decrease in the amount of oxygen reaching heart muscle. Cardiac ischemia may occur slowly as the arteries become blocked over time, or it may occur quickly when an artery becomes blocked suddenly. Open access to the scientific literature means the removal of barriers (including price barriers) from accessing scholarly work. There are two parallel âroadsâ towards open access: Open Access articles and self-archiving. Open Access articles are immediately, freely available on their Web site, a model mostly funded by charges paid by the author (usually through a research grant). The alternative for a researcher is self-archiving (i.e., to publish in a traditional journal, where only subscribers have immediate access, but to make the article available on their personal and/or institutional Web sites (including so-called repositories or archives)), which is a practice allowed by many scholarly journals.
Open Access raises practical and policy questions for scholars, publishers, funders, and policymakers alike, including what the return on investment is when paying an article processing fee to publish in an Open Access articles, or whether investments into institutional repositories should be made and whether self-archiving should be made mandatory, as contemplated by some funders.