Usually an author or authors circumvent that problem by rewriting an article and using other pictures.Some publishers may also want publicity for their journal so will approve facsimile reproduction unconditionally; other publishers are more resistant.The relatively weak peer review often applied to books and chapters in edited books means that their status is also second-tier, unless an author's personal standing is so high that prior achievement and a continued stake in one's reputation within the scientific community signals a clear expectation of quality.
On the positive side this change has led to faster dissemination of novel work within the scientific community; on the negative it has made it more difficult to discern a valid scientific contribution from the unmeritorious.
A scientific article has a standardized structure, which varies only slightly in different subjects.
Although the IMRAD structure emphasizes the organization of content and in scientific journal articles, each section (Introduction, Methods, Results, and Discussion) has unique conventions for scientific writing style.
Scholarly journals mainly publish articles that have been reviewed by a group of peers in whichever field the journal or article topic is written on.
Knowing the importance of peer-reviewed articles can help you when you're doing research or thinking about becoming a professor at certain colleges and universities.