Search Results - Yan Liu

As confirmed by previous studies, experimentation-based policymaking in China is a highly versatile, pragmatic style that sharply contrasts with the more legalistic, bureaucratic policy approaches. Analyzing the history and recent development of rural reform experimental zones (RREZs), the authors d...

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This study examines the structural characteristics and technical principles of the hybrid framing cantilever bridges along the Longchuan River in Tengchong, Yunnan, China, taking the Yezhuqing Bridge as a case example. Such bridges integrate diverse construction techniques—including inclined cantile...

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As urbanization intensifies, high-density communities have become a dominant urban form, making Child-Friendly Community (CFC) development crucial for sustainable urban growth. However, transforming these communities poses challenges, particularly regarding residents’ risk perceptions—an area largel...

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Abstract The bacterial pathogen Legionella pneumophila delivers more than 330 effector proteins into host cells through its Dot/Icm type IV secretion system (T4SS) to facilitate its intracellular replication. A number of these effectors modulate organelle trafficking pathways to create a membrane‐bo...

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Abstract Objectives The imbalance of Th17/Treg cells represents a key pathogenic mechanism in immune thrombocytopenia (ITP); however, the underlying regulatory mechanisms remain poorly understood. Dysregulated succinylation has been implicated in disease onset and progression. Therefore, this study...

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Objective To evaluate the association between first-trimester 24-h urinary protein levels (50–300 mg) and maternal/perinatal outcomes in low-risk pregnancies, focusing on subthreshold proteinuria (150–300 mg/24 h).Methods A retrospective cohort study analyzed 237 low-risk pregnant women with singlet...

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Vulvar epithelioid sarcoma (ES) in pregnancy is an exceedingly rare condition, and only three reports are available to date. Optimal management is not well established. Herein, we report a 35-year-old woman who presented with a tender mass on the left labia majora at 33 weeks and 4 days of gestation...

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Arbuscular mycorrhizal fungi (AMF) symbiosis has great potential in improving grapevine performance and reducing external input dependency in viticulture. However, the precise, strain-specific impacts of different AMF species on ‘Summer Black’ grapevine cuttings across multiple physiological and mor...

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Single-cell Assay for Transposase-Accessible Chromatin using sequencing (scATAC-seq) technology enables single-cell resolution analysis of chromatin accessibility, offering critical insights into gene regulation, epigenetic heterogeneity, and cellular differentiation across various biological contex...

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Wind power is a core component of a clean energy system. The efficiency of a wind power system evolves through coordinated interactions. These interactions occur among three regional subsystems: resource subsystem, technology subsystem, and economy subsystem. To reveal the operational mechanisms of...

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BackgroundTo explore the underlying mechanism and changes of anxiety and insomnia before and after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccination, we conducted an online cross-sectional survey.MethodsThis is a cross-sectional study conducted in two phases: the first phase w...

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Objective This experiment aims to evaluate the clinical efficacy of a novel adjustable titanium mesh fixation tent screw by comparing its bone augmentation effects with those of conventional titanium screws combined with prefabricated titanium mesh in cases where simultaneous implant placement is no...

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Street crime is a critical public concern, attracting wide social and research attention. Conventional solutions to reduce street crimes are dispatching more police force in patrol and installing more cameras for street surveillance, which, however, suffer from huge manpower and financial consumptio...

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The inherent non-ideal characteristics of circuit components and inter-channel mismatch errors induce nonlinear amplitude and phase distortions in time-interleaved pipelined analog-to-digital converters (TI-pipelined ADCs), significantly degrading system performance. Limited by prior modeling, conve...

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In this paper, we demonstrate the feasibility of realizing the extraordinary optical transmission (EOT) and the collimated beaming effect through InSb grating, which has a subwavelength slit surrounded by a finite array of grooves at both sides of the surface. Firstly, we investigate the transmissio...

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<h4>Background</h4>Clinical trials of human epidermal growth factor receptor 2 (HER2)-targeted agents added to standard treatment have been efficacious for HER2-positive (HER2+) advanced breast cancer. To our knowledge, no meta-analysis has evaluated HER2-targeted therapy including trast...

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As the primary force driving the sustainable development of the rural economy, the improvement of the total factor productivity (TFP) of agricultural enterprises (AEs) is of great strategic significance. This study innovatively zeroes in on AEs, leveraging micro-level data from agricultural listed c...

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Abstract This study investigates the impact of relative submergence, defined as the ratio of water depth to the diameter of boulders (k = H/D), on turbulence structures in flow through boulder arrays. The large‐eddy simulation method is employed to simulate flow through boulder arrays across a range...

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Osteosarcoma is a common primary malignant bone tumor that occurs mainly in children and adolescents. Recent evidence has demonstrated that miR-34a is involved in the invasion and metastasis of osteosarcoma. This study aims to explore the effect of biological behavior of miR-34a on osteosarcoma. Fir...

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