|Process of filtration in which a medium (semipermeable) which allows small molecules to pass through is called ultrafiltration. Some times this can be conducted under pressure. This process naturally occurs in kidneys. Usually membrane having a pore size of 0.001 - 0.1µm size are used.
Scholarly peer review is the process of subjecting an author's scholarly work, research, or ideas to the scrutiny of others who are experts in the same field, before a paper describing this work is published in a journal. The work may be accepted, considered acceptable with revisions, or rejected. Peer review requires a community of experts in a given (narrowly defined) field, who are qualified and able to perform reasonably impartial review.