Qualitative and quantitative detection of sex-targeted hormones in chicken embryo based on terahertz spectroscopy and metamaterial technology.

Gender identification of chick embryos at the early stages of incubation is of significant importance to poultry industry. Existing studies showed reproductive hormone concentrations are associated with gender of chick embryos. Accurate detection of reproductive hormone concentration can assist in gender identification.

[Interpretation of Ergonomic guidelines for the prevention of work-related musculoskeletal disorders part 6: Wooden furniture manufacturing work (T/WSJD 14.6-2024)].

"Ergonomic guidelines for the prevention of work-related musculoskeletal disorders Part 6: Wooden furniture manufacturing work" provides comprehensive preventive measures for China's wooden furniture manufacturing industry, covering scope of application, hazard factors identification, potential affected areas, intervention measures and effect evaluation. Through systematic ergonomics strategies, the guide emphasizes improving the working environment, cultivating employee awareness, eliminating hazard factors, and providing practical guidance for creating a healthy and safe working environment. This article interprets and analyzes the standard project background, formulation process, basic basis and main content to help relevant practitioners more fully understand and implement the ergonomics scheme proposed by the standard, and provide enterprises with scientific and accurate technical support.

[Visualization analysis of research progress on work-related musculoskeletal disorders in domestic and international].

To study aims to examine the current state and future trajectory of research on work-related musculoskeletal disorders (WMSDs) both domestically and internationally. In February 2024, Using CiteSpace software and bibliometrics, a bibliometric analysis and knowledge map study were conducted on the Web of Science core journal collection and 3144 related documents from CNKI as of December 31, 2023. This study included a total of 3144 articles (723 in Chinese and 2421 in English).

[Structural equation analysis and modeling of adverse ergonomic factors for lower back pain].

To establish a structural equation model of lower back pain and its risk factors in occupational population in China based on a large-sample occupational epidemiological survey and structural equation analysis, so as to lay the foundation for the prevention of this disease. A total of 73497 occupational epidemiological cases were selected from June 2018 to December 2023 using the Chinese version of the Musculoskeletal Disorders Electronic Questionnaire. The results were analyzed using ergonomic hazard factors and their risk source classification criteria.

[Structural equation analysis and modeling of wrist WMSDs and its adverse ergonomic factors].

To investigate the relationships and impacts between various occupational ergonomic hazards and hand and wrist fatigue, as well as work-related musculoskeletal disorders (WMSDs) of the hand and wrist, and to propose targeted preventive and intervention measures for adverse occupational ergonomic factors causing WMSDs of the hand and wrist. From 2018 to December 2023, a nationwide epidemiologic survey study of wrist WMSDs was conducted using the Chinese version of the electronic questionnaire system for musculoskeletal disorders.A total of 88, 609 valid questionnaires were collected.