The main journals of Nature and Science are positioned as both academic journals and scientific magazines, covering all disciplines, while the sub-journals of Nature and Science belong to comprehensive scientific magazines, which are biased towards a certain specialty and specialize in a certain kind of research.

The grade gap between the main journal and its sub-journals lies in the influence or influencing factors;

1. According to the journal citation report, the impact factor of Science in 20 14 was 3 1.477. The natural influence factor is 40.137 (data of17).

2. Natural Geoscience is a sub-journal of geoscience founded by Nature in 2008, and its impact factor in 2004 was 10.39. This influential journal of earth sciences, especially geology, is very valuable.

Even for the main issue of Nature, if only the earth science articles are considered, it is difficult for the impact factor to exceed 15.

3. Nature Newsletter is a new sub-periodical, which was founded on 20 10. Its purpose is consistent with the main journals of Nature. The latest impact factor is 20 17-20 12.353.

4. Through IF comparison, the evaluation of some sub-journals is even higher than that of the main journal, but overall, the main journal is more influential than its sub-journals, and it is more difficult to publish articles.

There are three types of nature periodicals: review periodicals, which summarize and comment on important research work; Research journals mainly publish original research reports.

Clinical medical journals authoritatively explain the important research progress in the medical field and promote the latest research results to be transformed into clinical practice.

Scientific publications include scientific progress; ; Scientific translational medicine; Scientific signals; Scientific immunology; Scientific robot.

In addition, Science also publishes news related to science, views on science and technology policies and issues of interest to scientists.