Using others work or ideas without citing their work is called plagiarism regardless of whether this was done intentionally or unintentionally. Many writers do not know what they have copied and pasted into their article is considered plagiarism. More specifically, plagiarism can range from a minor copy
paste to duplication of a manuscript.
A major reason for plagiarism among scholars is the competitive stress among them and the need to speed up publications, graduation, and successful grant applications. It is important to all writers to identify different types of plagiarism in order to avoid it.
When writing a scientific paper, one has to be honest about the concept of the study. When you refer to studies and provide proper citation, you still have to avoid copying and pasting his exact words in a scientific article. Instead, you need to reword the idea or concept of the cited paper and write it in your words.