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  1. Article

    Open Access

    The causal relationship between sleep disturbances and the risk of frailty: a two-sample Mendelian randomization study

    Adequate sleep is closely related to people's health. However, with increasing age, the quality of sleep worsens. At the same time, among elderly individuals, frailty is also a disturbing factor, which makes e...

    Zong-**ao Lu, Ni Sang, Rong-Chao Liu, Bo-Han Li… in European Journal of Ageing (2024)

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  2. No Access

    Article

    The prevalence and influencing factors of frailty in patients with chronic kidney disease: a systematic review and meta-analysis

    To investigate the prevalence and influencing factors of frailty and pre-frailty in chronic kidney disease (CKD) patients and thereby provide a scientific basis for effective avoidance of frailty in patients w...

    Bo-Han Li, Ni Sang, Meng-Yao Zhang, Zhi-Rou Liu… in International Urology and Nephrology (2024)

  3. Article

    Open Access

    Changes in frailty and depressive symptoms among middle-aged and older Chinese people: a nationwide cohort study

    The older people bears a severe burden of disease due to frailty and depressive symptoms, however, the results of association between the two in the older Chinese people have been conflicting. Therefore, this ...

    Ni Sang, Rong-chao Liu, Ming-hui Zhang, Zong-**ao Lu, Zhen-Gang Wu… in BMC Public Health (2024)

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  4. No Access

    Chapter and Conference Paper

    On a Class QL-Implications

    In this work, we introduce a class QL-operators based on the family of Schweizer-sklar t-norms and t-conorms. Firstly, we have shown that not all QL-operations are fuzzy implications. Moreover, It was given that ...

    Minxia Luo, Ni Sang in High Performance Networking, Computing, and Communication Systems (2011)