Objective To explore the correlation between serum, heavy metal and semen quality in normal Chinese young menMethods This study was designed as a multi-center cross-sectional investigation. The subjects consisted of 5...Objective To explore the correlation between serum, heavy metal and semen quality in normal Chinese young menMethods This study was designed as a multi-center cross-sectional investigation. The subjects consisted of 562 male vomunteers who had undergone premarital physical examination in maternal and children health centers in 7 provinces in China. Results Results from Spearman rank correlation analysis (partial variable: region) show that serum lead and cadmium are negatively related to percentage of morphological normal sperm, but canonical correlation between semen quality and serum heavy metal are not significant. Canonical correlation analysis among the subjects from Guizhou shows cadmium is harmful to sperm morphology. In Henan, furthermore, results show lead and cadmium could negatively affect sperm viability and morphology. Conclusion Among all study subjects, canonical correlation between semen quality and serum heavy metal were not significant; however, results in some region showed serum cadmium and lead might be harmful to sperm quality.展开更多
The so-called hospital personnel files management, the specific work content is responsible for the hospital personnel files after the search together, and classification of customs declaration, for subsequent access ...The so-called hospital personnel files management, the specific work content is responsible for the hospital personnel files after the search together, and classification of customs declaration, for subsequent access to use. Personnel file management is the basic content of hospital personnel management, which plays a key role in the operation of the whole hospital. In the hospital personnel files, personal information of each employee is recorded, including personal experience, political outlook, professional ability, moral quality, etc. Hospital knowledge files contain a large amount of information, and the number is very large, involving a very wide range, with a very strong professional, the collection process is relatively complex, especially in the continuous and in-depth reform of the medical and health system, the hospital personnel files carry more and more information, the traditional hospital file management information method can no longer adapt to the new era of hospital development for the management and use of human resources files, so we must strengthen the use and management of personnel files information, so that it can play a better role in promoting the development of hospitals.展开更多
文摘Objective To explore the correlation between serum, heavy metal and semen quality in normal Chinese young menMethods This study was designed as a multi-center cross-sectional investigation. The subjects consisted of 562 male vomunteers who had undergone premarital physical examination in maternal and children health centers in 7 provinces in China. Results Results from Spearman rank correlation analysis (partial variable: region) show that serum lead and cadmium are negatively related to percentage of morphological normal sperm, but canonical correlation between semen quality and serum heavy metal are not significant. Canonical correlation analysis among the subjects from Guizhou shows cadmium is harmful to sperm morphology. In Henan, furthermore, results show lead and cadmium could negatively affect sperm viability and morphology. Conclusion Among all study subjects, canonical correlation between semen quality and serum heavy metal were not significant; however, results in some region showed serum cadmium and lead might be harmful to sperm quality.
文摘The so-called hospital personnel files management, the specific work content is responsible for the hospital personnel files after the search together, and classification of customs declaration, for subsequent access to use. Personnel file management is the basic content of hospital personnel management, which plays a key role in the operation of the whole hospital. In the hospital personnel files, personal information of each employee is recorded, including personal experience, political outlook, professional ability, moral quality, etc. Hospital knowledge files contain a large amount of information, and the number is very large, involving a very wide range, with a very strong professional, the collection process is relatively complex, especially in the continuous and in-depth reform of the medical and health system, the hospital personnel files carry more and more information, the traditional hospital file management information method can no longer adapt to the new era of hospital development for the management and use of human resources files, so we must strengthen the use and management of personnel files information, so that it can play a better role in promoting the development of hospitals.
