Scientific journal
<p>Apr 23, 2010 5:23 PM
 
 
TOP Journals are <b> Nature,  Science,  NEJM,  Cell,  PNAS,, J Bio Chem, JAMA,</b>
<b>Lancet,  Nat Genetics,  Nat Me</b>d.
 
 
NATURE  SCIENCE PNAS
 
peer-reviews helps to ensure sci VALIDITY and quality.
 
each article becomes part of the permanent sci record.
 
<b>Although scientific journals are superficially similar to <a href="/wiki/Professional" title="Professional">professional</a> <a href="/wiki/Magazine" title="Magazine">magazines</a>, they are actually quite different. Issues of a scientific journal are rarely read casually, as one would read a magazine. The publication of the results of research is an essential part of the <a href="/wiki/Scientific_method" title="Scientific method">scientific method</a>.</b> If they are describing experiments or calculations, they must supply enough details that an independent researcher could repeat the experiment or calculation to verify the results. Each such journal article becomes part of the permanent <a class="new" href="/w/index.php?title=Scientific_record&action=edit&redlink=1" title="Scientific record (page does not exist)">scientific record</a>.
 
In a scientific research group or <a href="/wiki/Academic_department" title="Academic department">academic department</a> it is usual for the content of current scientific journals to be discussed in <a href="/wiki/Journal_club" title="Journal club">journal clubs</a>.
 
Some journals, such as <a href="/wiki/Nature(journal)" title="Nature (journal)"><i>Nature</i></a>, <a href="/wiki/Science(journal)" title="Science (journal)"><i>Science</i></a>, <a class="mw-redirect" href="/wiki/PNAS" title="PNAS"><i>PNAS</i></a>, and <a href="/wiki/Physical_Review_Letters" title="Physical Review Letters"><i>Physical Review Letters</i></a>, have a reputation of publishing articles that mark a fundamental breakthrough in their respective fields. In many fields, an informal hierarchy of scientific journals exists; the most prestigious journal in a field tends to be the most selective in terms of the articles it will select for publication, and will also have the highest <a href="/wiki/Impact_factor" title="Impact factor">impact factor</a>.</p>