Chinese Science Bulletin

Students' mathematical reasoning skills are still low. Topic that are considered difficult by students is geometry. In order for geometry learning to be meaningful, mathematical objects need to be visualized. GeoGebra is one of the dynamic and interactive software that can help students in exploring mathematical concepts. For this reason, it is necessary to create GeoGebra-assisted worksheets. The purpose of this research is to produce a worksheet with a discovery learning model assisted by GeoGebra that is valid, practical, and effective to improve students' mathematical reasoning. This resea

Hydrogen has become a key focus in supporting the transition to clean power systems, offering solutions for energy storage, grid stability, and renewable energy integration. This study presents a bibliometric analysis of hydrogen research related to power systems, using Scopus data from 2019 to 2024. The results show significant publication growth, with China emerging as the leading contributor, supported by strong institutional output from Xi’an Jiaotong University and Tsinghua University. Collaboration patterns indicate increasing international cooperation in hydrogen and power system rese

This study presents a bibliometric analysis of green hydrogen research from 2019 to 2024, examining publication trends, collaboration networks, citation impact, and emerging research themes. The findings indicate significant growth in research output, driven by global energy transition goals and substantial contributions from countries such as China, the United States, Germany, and Japan. International collaboration is increasing, with leading institutions and industry partners playing a crucial role in advancing hydrogen innovation. Thematic analysis reveals a shift from fundamental hydrogen

The quick adoption of tech in healthcare has led to "e-nursing" – nurses using digital tools and telehealth to improve patient care. This study looks at how e-nursing affects customer (patient) satisfaction in healthcare. We used a quantitative approach with a cross-sectional survey given to 400 patients who used e-nursing services at different hospitals. The survey measured aspects of e-nursing (like how well it communicates how easy it is to access, and how it responds) and overall customer satisfaction using a 5-point Likert scale. We crunched the numbers, including basic stats, correlati

This article examines advancements in reducing carbon emissions from power plants by integrating hydrogen co-firing technology. It evaluates the technology's benefits, research, challenges, and outlook, focusing on its potential to drive power generation toward sustainability. The discussion incorporates global studies and practical applications, showcasing technological progress and the environmental benefits of hydrogen co-firing in mitigating greenhouse gas emissions and enhancing energy security. The challenges associated with hydrogen adoption are addressed, including infrastructure upgra