1. High academic level: Core journals require high academic level and paper quality, and require graduate students to have a solid theoretical foundation and research ability. This requires graduate students to have in-depth thinking and analysis when writing their papers, and to be able to put forward original opinions and innovative viewpoints.
2. Fierce competition: The publishing competition of core journals is fierce. A large number of excellent papers are submitted every year, but only a few can be accepted for publication. Therefore, graduate students need to work hard on topics, research methods and data analysis to improve their competitiveness.
3. Time pressure: Graduate students usually need to take into account many tasks such as course study, experimental research and thesis writing at the same time, and time is very tight. This requires graduate students to arrange their time reasonably, improve their work efficiency and ensure the quality and progress of their papers.
4. Insufficient tutor guidance: Some tutors may not have enough time and energy to guide graduate students' thesis writing, which leads to difficulties for graduate students in the process of thesis writing, and they cannot get timely help and guidance. Therefore, graduate students need to actively communicate with their tutors and seek help and support.
5. High publication cost: Core journals usually charge higher publication fees and peer review fees, which is a great burden for graduate students with limited economic conditions. In addition, if the paper is rejected or revised, it needs to be paid again.