Li Chen

2 months ago | biorxiv.org | Zhiyu Kang |Li Chen |Peng Wei |Zhichao Xu

AbstractMediation analysis helps uncover how exposures impact outcomes through intermediate variables. Traditional mean-based total mediation effect measures can suffer from the cancellation of opposite component-wise effects and existing methods often lack the power to capture weak effects in high-dimensional mediators. Additionally, most existing work has focused on continuous outcomes, with limited attention to binary outcomes, particularly in case-control studies.

Jan 14, 2025 | journals.aps.org | Li Chen

Constructing and manipulating quantum states in fast-rotating Bose-Einstein condensates (BECs) has long stood as a significant challenge as the rotating speed approached a critical velocity. Although a recent experiment [R. J. Fletcher et al., Science 372, 1318 (2021)] has realized the geometrically squeezed state of the guiding-center mode, the remaining degree of freedom, the cyclotron mode, remains unsqueezed due to the large energy gap of the Landau levels.

Jan 13, 2025 | mdpi.com | Li Chen

1. IntroductionNowadays, retailers of digital goods such as e-books, online newspapers, and mobile applications (hereinafter “retailers”) often use strategies in multiple aspects. In the aspect of revenue strategies, they need to decide whether to adopt an ad-supported model, subscription-based model, or other models [1]. For instance, while YouTube chooses an ad-supported model, Netflix adopts a subscription-based model.

Dec 23, 2024 | mdpi.com | Li Chen

1. IntroductionThe analysis of rock thin section imagery represents an indispensable geological exploration [1] tool for understanding and recognizing the composition of the Earth. Furthermore, it serves as a significant evaluation method in oil and gas exploration and development [2]. This technique can be employed to identify petrological properties of reservoir rocks [3], ascertain genetic types [4], and differentiate the characteristics of reservoir space and pore structure [5].

Dec 11, 2024 | mdpi.com | Siyu Zhang |Weiyan Hu |Li Chen |Yu ZHANG

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