Heart failure can be caused due to many reasons like heart attack, coronary heart disease or high blood pressure. Heart failure occurs when the heart is unable to receive the proper supply of oxygen through blood. It may occur due to narrowing of heart arteries that pump blood to the heart or high blood pressure due to which the heart become weak and is unable to pump blood in a proper way causing heart failure.
The common symptoms of the heart failure include shortness of breath, fatigue and irregular rapid heartbeat as the heart is unable to pump the blood properly so the oxygen level decreases in the blood due to which the heart will beat rapidly to meet the oxygen demand hence there is shortness of breath. Heart failure can be chronic or acute. Heart failure can be diagnosed by Electrocardiogram, chest X-ray and blood tests. There is no treatment for the heart failure but symptoms can be controlled that help the person to live longer life.
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 âself-archivingâ (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.
Last date updated on September, 2014