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  3. 57103

    Improvement of organizational and methodological issues of analytical control of natural gas quality in Testing laboratory by A. F. Battalov, R. T. Saetova, Ya. V. Denisova

    Published 2021-09-01
    “…The central chemical-analytical laboratory of the Gazprom Transgaz Kazan’s engineering and technical center and the points of gas sampling at the gas distribution stations of the main gas pipelines in the service area of the сompany are used as objects of the method implementation.…”
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  4. 57104

    Relationship Between Sleep Time and Depressive Symptoms in Middle-Aged and Elderly Chinese: Mediating Role of Body Pain by Yang Z, Li B, Ma D, Lv Y, Qiu X, Zhang W, Wang J, Zhang Y, Xu C, Deng Y, Li J, Zhen X, Zhang J

    Published 2025-01-01
    “…Ziqing Yang,1,* Bingsong Li,2,3,* Dan Ma,1,4 Yitong Lv,1 Xinhui Qiu,5 Wenge Zhang,6 Jianye Wang,7 Yanlin Zhang,8 Chunming Xu,9 Yuxin Deng,9 Jinyang Li,10 Xuemei Zhen,2,3 Jun Zhang1 1Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Research Center of Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan, Shandong, People’s Republic of China; 2Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, 250012, People’s Republic of China; 3NHC Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan, Shandong, 250012, People’s Republic of China; 4Department of Orthodontics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, People’s Republic of China; 5The second Hospital of Shandong University, Jinan, Shandong, 250033, People’s Republic of China; 6School of Management, Shandong University, Jinan, Shandong, 250100, People’s Republic of China; 7Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, 250012, People’s Republic of China; 8School of Basic Medical Sciences, Shandong University, Jinan, Shandong, 250012, People’s Republic of China; 9Department of Pediatrics, Xinjiang Medical University, Urumqi, People’s Republic of China; 10Faculty of Nursing, Shihezi University, Shihezi, People’s Republic of China*These authors contributed equally to this workCorrespondence: Xuemei Zhen; Jun Zhang, Email zhenxuemei@sdu.edu.cn; zhangj@sdu.edu.cnObjective: Existing research has yet to adequately examine the correlation between sleep time, body pain, and depressive symptoms. …”
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