Publications by authors named "Guoyun Yang"
Article Synopsis
- The study focuses on creating a reliable and precise method for detecting rare earth elements, which is crucial for assessing mining values.
- A new extraction process using a combination of ammonium sulfate, ammonium citrate, and a buffer was developed, resulting in better extraction efficiency.
- The method demonstrated high accuracy and stability, with a detection limit of 3.4 μg/g and a range of 12-8000 μg/g, promoting effective utilization of rare earth resources.
[Relationship between social-psycological factors and quality of life in old women with coronary heart disease].
Sichuan Da Xue Xue Bao Yi Xue Ban
March 2013
Objective: To investigate the influence of depression, social supports and quality of sleep and quality of life on old women who were 60 years or older and postmenopause with coronary heart disease.
Methods: 125 old women with coronary heart disease completed questionnaires of Seattle Angina Questionnaire (SAQ), Social Support Scale (SSRS) and Self-rating Depression Scale (SDS). Logistic regression analysis and Spearman correlation analysis were performed to evaluate the relationship between social-psycological factors and quality of life.