Publications by authors named "Linqi Liu"

Electrocatalytic coreduction of nitrate and CO provides an opportunity for the synthesis of organonitrogen chemicals. The major challenge is to realize the simultaneous reduction of nitrate and CO into active intermediates for C-N bond formation. In this work, methylamine is synthesized from nitrate and CO on a polyphthalocyanine electrocatalyst with heterometal centers (CoCuPPc).

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Introduction: Myasthenia gravis (MG) presents a substantial clinical burden, characterized by increased incidence of myasthenic crises, heterogeneity in treatment response, significant functional impairment, and gradually increasing mortality rates with marked geographical heterogeneity across China. While improving quality of life (QOL) is the focus of MG management, multifactorial determinants of QOL impairment remain unclear, especially in socioeconomically underrepresented regions, particularly Southwestern China. This study aimed to explore myasthenia-specific risk factors for QOL and develop a parsimonious prediction model.

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Background: Post-percutaneous coronary intervention (PCI) angina affects 20% to 40% of non-ST-segment elevation acute coronary syndrome (NSTE-ACS) survivors but remains a clinical challenge due to its unpredictable course.

Objectives: This study aimed to validate a rapid 90-second optically pumped magnetometer magnetocardiography (OPM-MCG) test for diagnosing post-PCI angina and develop a predictive model using dynamic MCG parameters.

Methods: NSTE-ACS patients who underwent pre- and post-PCI OPM-MCG scans were included.

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Currently, there is a lack of convenient and effective methods for assessing recurrent angina following percutaneous coronary intervention (PCI). We documented the course of magnetocardiography's (MCG) changes in a 41-year-old man with recurrent angina throughout his visit to the clinic. The MCG suggested myocardial ischemia at the first visit.

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The potential of optical pumped magnetometer magnetocardiography (OPM-MCG) for diagnosing coronary artery disease (CAD) has been initially shown, yet lacks large-scale prospective research.Using invasive coronary angiography (ICA) as a reference, we constructed three feature sets for the development of machine learning (ML) models: a 'Heart' feature set consisting only of OPM-MCG features, a 'Clinical' feature set, and a 'Heart + Clinical' combined feature set. We assessed the performance of 11 ML models with 10-fold cross-validation and conducted a feature importance analysis.

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Background: Myasthenia gravis (MG) is an autoimmune disorder affecting neuromuscular junctions. While neuroendocrine-immune system dysfunction plays a crucial role in the development of autoimmune diseases, its involvement in MG remains largely unexplored. Kisspeptin, a neuropeptide hormone and endogenous ligand for GPR54 receptor, has been demonstrated to regulate antitumor immunity, antiviral immunity, and several autoimmune diseases.

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Objective: To detect the association between regional adiposity distribution and the incidence of seven autoimmune diseases (ADs) in UK Biobank cohort and Mendelian randomization (MR) analyses.

Methods: We used Cox models to evaluate the associations between seven adiposity distribution measures and seven ADs (systemic lupus erythematosus [SLE], seropositive rheumatoid arthritis [PRA], psoriasis [PSO], multiple sclerosis [MS], myasthenia gravis [MG], Crohn's disease [CD] and ulcerative colitis [UC]) in cohort studies. In the MR analyses, we used the inverse variance-weighted MR method to estimate causal effects between adiposity distribution and obesity-related ADs in the cohort.

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Background: Accurately evaluating the water status of walnuts in different growth stages is fundamental to implementing deficit irrigation strategies and improving the yield of walnuts. The crop water stress index (CWSI) based on the canopy temperature is one of the most commonly used tools for current research on plant water monitoring. However, the suitability and effectiveness of using the CWSI as an indicator of the walnut water status under field conditions are still unclear.

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Objective: This multicenter study evaluated the diagnostic accuracy of coronary computed tomography angiography (CCTA) and computed tomography-derived fractional flow reserve (FFR) in diagnosing coronary artery disease (CAD), focusing on the impact of coronary calcification, using invasive coronary angiography (ICA) as the reference.

Methods: The study analyzed 4172 patients from 3 centers who underwent CCTA and FFR between August 2021 and August 2022. Exclusion criteria included the absence of ICA within 90 days after CCTA, left main disease, previous coronary revascularization, or unmeasurable Agatston score (AS).

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Antibiotic resistance genes (ARGs) and antibiotic-resistant bacteria (ARB) are extensively documented within antibiotic pharmaceutical factories. Notably, non-antibiotic pharmaceuticals also represent a significant portion of the pharmaceuticals market. However, the comparative analyses of soil-borne ARG profiles and associated risks in different categories of pharmaceutical factories remain limited.

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Article Synopsis
  • - Magnetocardiography (MCG) is a new non-invasive method that detects weak magnetic fields created by the heart's electrical activity, aiming to identify issues like myocardial ischemia by comparing its results to single-photon emission computed tomography (SPECT).
  • - The study involved 112 patients with chest pain who underwent both SPECT and MCG scans, and researchers used machine learning techniques (random forest, decision tree, support vector machine) to analyze data and predict impaired blood flow to the heart.
  • - Five key MCG variables were found to effectively predict impaired myocardial perfusion, with the study showing high sensitivity in the machine learning models, although specificity was generally lower, highlighting MCG's potential as a valuable future tool
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Objectives: To develop and validate a clinical diagnostic model based on optical pumped magnetometer magnetocardiography (OPM-MCG) for the detection of myocardial ischaemia in patients with borderline coronary lesions prior to invasive coronary angiography (ICA).

Design: Prospective observational cohort study.

Setting: Single centre of the China National Clinical Research Centre for Cardiovascular Disease (NCCMRC).

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Article Synopsis
  • * Results showed that higher occurrence of EEG microstate class B was linked to a greater likelihood of non-remission from psychiatric symptoms and correlated with more severe symptoms at onset.
  • * These findings suggest microstate class B could be used as a potential biomarker for assessing the severity and prognostic evaluation of ORPS in patients.
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The lower limit temperature in the crop water stress index (CWSI) model refers to the canopy temperature () or the canopy-air temperature differences () under well-watered conditions, which has significant impacts on the accuracy of the model in quantifying plant water status. At present, the direct estimation of lower limit temperature based on data-driven method has been successfully used in crops, but its applicability has not been tes-ted in forest ecosystems. We collected continuously and synchronously and meteorological data in a plantation at the southern foot of Taihang Mountain to evaluate the feasibility of multiple linear regression model and BP neural network model for estimating the lower limit temperature and the accuracy of the CWSI indicating water status of the plantation.

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  • A study evaluated the effectiveness of coronary computed tomography angiography-derived fractional flow reserve (CT-FFR) as a predictive tool for cardiac events in patients undergoing lung cancer surgery, showing significant results over traditional methods.
  • The research included 227 patients and found that the incidence of major adverse cardiac events (MACE) was 20.7%, with CT-FFR having a higher accuracy rate (0.737) compared to CCTA (0.524).
  • Findings indicated that a CT-FFR value of ≤0.8 was a strong independent risk factor for both MACE and perioperative myocardial injury (PMI), suggesting CT-FFR can enhance cardiac risk assessment for these patients.
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  • This study investigates how serum calcium (SC) levels relate to the occurrence of postoperative atrial fibrillation (POAF) in patients undergoing heart surgery.
  • It analyzed data from over 12,000 patients, revealing that those with low SC levels had a significantly higher rate of POAF compared to those with normal levels.
  • The findings suggest that low SC levels are a risk factor for POAF, regardless of other factors like age, sex, and pre-existing health conditions.
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Microbial CO fixation into lactic acid (LA) is an important approach for low-carbon biomanufacturing. Engineering microbes to utilize CO and sugar as co-substrates can create efficient pathways through input of moderate reducing power to drive CO fixation into product. However, to achieve complete conservation of organic carbon, how to engineer the CO-fixing modules compatible with native central metabolism and merge the processes for improving bioproduction of LA is a big challenge.

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Objective: Severe mitral annular calcification (MAC) can make prosthetic implantation extremely difficult. Although intra-atrial mitral valve prosthesis implantation without annular decalcification offers a simpler approach, it poses a potential rupture risk due to high left ventricular pressure. We developed a double-layer (DL) horizontal cross-suture technique, which ensures close proximity of the valve prosthesis to the calcified annulus and segregates the left atrial wall from the left ventricle.

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  • Studying land-atmosphere interactions in vegetation rehabilitation helps understand how human activities impact land surface processes.
  • Research in Northeast China analyzed energy flux data from 2020 and 2021, revealing that sensible heat flux was the main component and the ratio of sensible to latent heat flux remained above 1 throughout plant growth stages.
  • Key factors affecting midday evaporative fractions and evapotranspiration were found to be the normalized difference vegetation index (NDVI) and soil water content, influencing how water and energy were processed in this semi-arid region.
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The pathogenesis and progression of myasthenia gravis (MG), an autoimmune disease, involve abnormal function and composition of several immune cell populations. However, details of this dysregulation remain unclear. We performed a cross-section analysis using cytometry time-of-flight on blood samples from 12 generalized MG without glucocorticoid or other immunosuppressant treatment, and 10 sex- and age-matched healthy controls.

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Polymerized high internal phase emulsions as highly porous adsorption materials have received increasing attention and wide applications in separation science in recent years due to their remarkable merits such as highly interconnected porosity, high permeability, good thermal and chemical stability, and tailorable chemistry. In this review, we attempt to introduce some strategies to utilize polymerized high internal phase emulsions for separation science, and highlight the recent advances made in the applications of polymerized high internal phase emulsions for diverse separation of small organic molecules, carbon dioxide, metal ions, proteins, and other interesting targets. Potential challenges and future perspectives for polymerized high internal phase emulsion research in the field of separation science are also speculated at the end of this review.

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The air traffic growth at Shanghai Pudong International Airport (PVG) has attracted much concern over the potential impacts on local air quality and human health; however, the emission contributions due to aircraft activities, impact on air quality and health effects remain unclear. In this study, the ground operational data derived from the Aircraft Communication Addressing and Reporting System (ACARS) dataset are newly utilized to obtain the PVG-specific emission parameters of 10 distinct aircraft-engine combinations during the taxi-in and taxi-out phases of the landing and take-off (LTO) cycle. The resulting emission parameters, together with PVG-specific operational conditions, are applied to quantify the annual emissions in 2017 for main engines and auxiliary power units (APUs) at PVG, emission variations caused by mixing layer height, sensitivity of black carbon (BC) emissions to the estimation method and sensitivity of PM emissions to the fuel sulfur content (FSC).

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Developing highly efficient hydrogen evolution reaction (HER) catalysts in alkaline media is considered significant and valuable for water splitting. Herein, it is demonstrated that surface reorganization engineering by oxygen plasma engraving on electocatalysts successfully realizes a dramatically enhanced alkaline HER activity. Taking CoP nanowire arrays grown on carbon cloth (denoted as CoP NWs/CC) as an example, the oxygen plasma engraving can trigger moderate CoO species formation on the surface of the CoP NWs/CC, which is visually verified by the X-ray absorption fine structure, high-resolution transmission electron microscopy, and energy-dispersive spectrometer (EDS) mapping.

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In this study, by using dicobalt phosphide nanoparticles as precatalysts, we demonstrated that electrochemical activation of metallic precatalysts in alkaline media (comparing with directly electrochemical activation in neutral media) could significantly promote the OER catalysis in neutral media, specifically realizing a 2-fold enhanced activity and meanwhile showing a greatly decreased overpotential of about 100 mV at 10 mA cm. Compared directly with electrochemical activation in neutral media, the electrochemical activation in harsh alkaline media could easily break the strong Co-Co bond and promote active species generation on the surface of metallic CoP, thus accounting for the enhancement of neutral OER activity, which is also evidenced by HRTEM and the electrochemical double-layer capacitance measurement. The activation of electrochemical oxidation of metallic precatalysts in alkaline media enhanced neutral OER catalysis could also be observed on CoP nanoparticles and NiP nanoparticles, suggesting this is a generic strategy.

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Objective: To explore a new method to correct the whistle deformity in bilateral cleft lip.

Methods: A lower lip bipedicle orbicularis oris musculomucosal island flap was designed to repair the upper vermilion defect.The pedicle of this flap was deepidermidalized and then embedded into the upper lip.

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