1, different components
When the signature of a paper is used in the evaluation of professional titles, the power of the first author is heavier than that of the second and third authors, but lighter than that of the personal signature. The scores of the first author, the second author and the third author of the paper decrease in order of rank. In most cases, the correspondent and the first author are the same person. Only when the correspondent and the first author are inconsistent, you need to add a correspondent.
2. Different contributions
The first author is generally the researcher who has contributed the most to the work of this paper, not only contributing the most important charts (i.e. physical contributions), but also writing the first draft of the article (i.e. intellectual contributions). The second and third authors sign after the first author in descending order of contribution value.
The first author is different from the correspondent and creative contribution, and the correspondent often acts as the most authoritative person in the field of papers.
3. Different responsibilities
The first author is usually the main executor of the specific work and is responsible for the main experimental results.
Extended data:
Correspondent:
Correspondents generally refer to the person in charge of the whole project, who is responsible for the funding, design and writing of articles. He is also a contact person for articles and research materials. Most importantly, he is responsible for the reliability of the article. Correspondents are usually the most authoritative authors in the field of the newspaper. Correspondents are usually mentors. The communication is followed by asterisks and footnotes. Magazines usually contact reporters.
The second author:
The contributors who have made direct or indirect contributions to the works are generally called the second authors because their overall contributions are far from those of the first authors. On the signature of innovative works, such as scientific research papers, patents, research reports, etc. The name of the person who has made the greatest contribution to the work is usually signed at the front. Especially for the signature of scientific research papers, each journal has more detailed regulations.
However, when the paper signature is used to evaluate professional titles, the weight of the first author is obviously heavier than that of the second and third authors, but lighter than the personal signature. Due to the complexity and diversity of scientific research, for example, hundreds of people sign a paper in bioinformatics.