Publications by authors named "Xinlei Yu"

This study investigated the edible quality differences in muscle segments of silver carp (Hypophthalmichthys molitrix) and established an evaluation model for processing suitability. The results showed that steamed dorsal meat had the highest levels of total free amino acids, umami amino acids, and total volatile compounds. Fried tail meat exhibited the highest content of sweet amino acids and equivalent umami concentration (EUC) values, which were superior in all fried meat parts compared to those that were steamed.

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Despite being studied for almost two centuries, aromaticity has always been a controversial concept. We previously proposed a unified aromatic rule for π-conjugated systems by two-dimensional (2D) superatomic-molecule theory, where benzenoid rings are treated as period 2 2D superatoms (3π-N, 4π-O, 5π-F, 6π-Ne) and, further, bond to form 2D superatomic molecules. Herein, to build a 2D periodic table, we further extend the theory to period 3 (7π-P, 8π-S, 9π-Cl, 10π-Ar) and period 1 (1π-H, 2π-He) elements.

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Accurately predicting intracerebral hemorrhage (ICH) prognosis is a critical and indispensable step in the clinical management of patients post-ICH. Recently, integrating artificial intelligence, particularly deep learning, has significantly enhanced prediction accuracy and alleviated neurosurgeons from the burden of manual prognosis assessment. However, uni-modal methods have shown suboptimal performance due to the intricate pathophysiology of the ICH.

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The carbon-neutral target presents a significant challenge for the sewage sludge treatment and disposal (SSTD) industry, necessitating strategic planning for a low-carbon transition. However, flexible and comprehensive carbon emission analysis tools to support this goal remain lacking. This study presents a carbon emission analysis tool to evaluate the carbon emission characteristics and future mitigation potentials of SSTD.

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The availability of second near-infrared (NIR-II) excitable two-photon photosensitizers with NIR-I emission for efficient photodynamic therapy (PDT) is limited by challenges in molecular design. In this study, a NIR-II light-excitable two-photon conjugated microporous polymer (Tph-Dbd) with emission in the NIR-I region is developed. The large conjugated system and delocalized electronic structures endow Tph-Dbd with a large two-photon absorption cross-section under NIR-II light excitation.

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Electronic structure and excited state behavior is of pronounced influence on regulation of nonlinear optical (NLO) response. Herein, a serials of transition metal ions bearing different d-electron numbers were in situ coordinated within porphyrinic metal-organic frameworks (MOFs), creating NLO-responsive M-metal (metal=Fe, Co, Ni, Cu, and Zn) frameworks. It demonstrated that the NLO properties can be optimized with the increased occupancy of the d-shell, which enhances the degree of delocalization.

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Asymmetric warming refers to the difference between the increase in daytime maximum temperature and the increase in nighttime minimum temperature and has been documented in temperate regions. However, its impacts on seedling growth have been largely ignored. In this study, seedlings of a widely distributed tree species, Acer mono Maxim.

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The construction of near-infrared (NIR) light-activated hydrogen-producing materials that enable the controlled generation and high-concentration release of hydrogen molecules in deep tumor tissues and enhance the effects of hydrogen therapy holds significant scientific importance. To address the key technical challenge of low-efficiency oxidation-reduction reactions for narrow-bandgap photocatalytic materials, this work proposes an innovative approach for the controllable fabrication of multiphoton photocatalytic materials to overcome the limitations imposed by traditional near-infrared photocatalysts with "narrow-bandgap" constraints. Herein, an NIR-responsive multiphoton photocatalyst, ZrTc-Co, is developed by utilizing a post-synthetic coordination modification strategy to introduce hydrogenation active site Co into a multiphoton responsive MOF (ZrTc).

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Metallophilic interactions are the widespread interactions in multimetal clusters to orientate closed-shell metal self-assembly form linear, facet, or block clusters. The closed-shell metal cation does not have empty valence orbitals, but is able to attract each other. It is still a conundrum to understand the resource in balancing the strong Coulomb repulsion between two cations.

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Intracerebral hemorrhage (ICH) is a critical condition characterized by a high prevalence, substantial mortality rates, and unpredictable clinical outcomes, which results in a serious threat to human health. Improving the timeliness and accuracy of prognosis assessment is crucial to minimizing mortality and long-term disability associated with ICH. Due to the complexity of ICH, the diagnosis of ICH in clinical practice heavily relies on the professional expertise and clinical experience of physicians.

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The aromaticity of π-conjugated compounds has long been a confusing issue. Based on a recently emerged two-dimensional (2D) superatomic-molecule theory, a unified rule was built to decipher the aromaticity of cyclic superatomic molecules of π-conjugated compounds from the chemical bonding perspective. Herein, a series of planar []helicenes and []circulenes, composed of benzene, thiophene, or furfuran, are systemically studied and seen as superatomic molecules OF or O, where superatoms F and O denote π-conjugated units with 5 and 4 π electrons, respectively.

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Article Synopsis
  • Nb clusters are produced and tested for reactions with ethene and propene, revealing they form dehydrogenation products but are still inert to olefin reactions based on mass spectra results.
  • Photoelectron velocity map imaging (VMI) experiments confirm that Nb clusters maintain a stable rhombic dodecahedron structure, indicating high symmetry.
  • Theoretical analyses link the cluster's stability to its superatomic properties, with notable contributions from the 5s electron of Nb and s-d hybridization, suggesting a magic number configuration that enhances stability without olefin adsorption.
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Global climate change will increase surface soil temperature, with consequences on plant seedling growth and population dynamics. In this study, we carried out a field experiment to investigate the effects of 2 ℃ soil warming on the growth and physiological characteristics of 1- and 2-year-old seedlings of a dominant tree species in broadleaved Korean pine forest, . The results showed that soil warming significantly increased basal diameter, root length, total leaf area, leaf dry weight, root dry weight, total biomass, apparent photosynthetic electron transfer rate (ETR), PSⅡ actual photochemical efficiency (), and apparent photosynthetic electrophotochemical quenching coefficient () of 1-year-old seedlings by 18.

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  • This study investigates the aroma profile of oolong tea, identifying two main components: cultivar aroma and technical aroma, which vary based on the tea's cultivar suitability.
  • Using various analytical methods, the research found that human perception of aroma is influenced by a range of metabolites including terpenes, carotenoids, lipids, amino acids, and thermal reaction products.
  • The findings highlight that while many aroma compounds are tied to the specific tea cultivar, some "technical aromas" resulting from processing are less dependent on cultivar suitability.
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Agar is widely applied across the food, pharmaceutical and biotechnology industries, owing to its various bioactive functions. To better understand the agar biosynthesis in commercial seaweed , the activities of four enzymes participating in the agar biosynthesis were detected, and phosphoglucomutase (PGM) was confirmed as highly correlated with agar accumulation. Three genes of (, and ) were identified from the genome.

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  • The study focuses on secondary alveolar bone grafting (SABG) for patients with unilateral cleft lip and palate, aiming to enhance the understanding of factors affecting its outcomes.
  • Researchers developed a new classification system for cleft morphologies, identifying five distinct types, and analyzed the correlation between these morphologies and surgical outcomes using preoperative imaging.
  • Results revealed a significant relationship between cleft morphology and SABG effectiveness, with varying degrees of success observed, indicating that morphology could help predict treatment outcomes.
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Aurophilicity is a d-d closed-shell interaction, which is repulsively calculated by the Hartree-Fork (HF) method, whereas binding energies (E) are largely overestimated under the second-order Møller-Plesset (MP2) method, compared to the coupled cluster singles and doubles with perturbative triples [CCSD(T)] method. The unusual energy errors between different wave functional methods were also verified in other closed-shell metallophilic systems and even were taken as a label of metallophilic interaction. Here, we performed a benchmark study on a collection of structures with weak interactions, sp-sp bonds, sp-d bonds, and d-d bonds, to investigate the influence factor of the errors of HF and MP2 methods.

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The nature of closed-shell Au···Au attraction is still a conundrum in theoretical chemistry. However, for AuF with a zigzag conformation, the d-d closed-shell interaction between the AuF monomers is demonstrated as a coordinate covalent bond. Chemical bonding analysis reveals that the strong Au···Au attraction is caused by the participation of the extraordinary active 5d orbital of Au.

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Comprehensive analyses of multi-omics data may provide insights into interactions between different biological layers concerning distinct clinical features. We integrated data on the gut microbiota, blood parameters and urine metabolites of treatment-naive individuals presenting a wide range of metabolic disease phenotypes to delineate clinically meaningful associations. Trans-omics correlation networks revealed that candidate gut microbial biomarkers and urine metabolite feature were covaried with distinct clinical phenotypes.

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  • The study analyzed metagenomic data from vaginal, fecal, and salivary samples of over 1,100 Chinese women to explore the microbiome's composition, dominated by lactobacilli, and its influencing factors.
  • Factors like pregnancy history, delivery method, and breastfeeding were found to be more significant than menstrual cycle in shaping the microbial community in the vagina.
  • The research also identified potential health markers related to menstrual irregularities and overall well-being, emphasizing the need for international collaboration to further understand the microbiome's impact on female reproductive health beyond infections or pre-term births.
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Utilizing a customized metal cluster source in tandem with a flow tube reactor and a reflectron time-of-flight mass spectrometer, we have obtained well-resolved pure metal clusters Pt and observed their gas-phase reactions with a few small gas molecules. Interestingly, the remarkable inertness of Pt was repeatedly observed in different reactions. Meanwhile, we have determined the structure of Pt within a regular tetrahedron.

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Background & Aims: Elucidating key factors affecting personal responses to food is the first step toward implementing personalized nutrition strategies in for example weight loss programs. Here, we aimed to identify factors of importance for individual weight loss trajectories in a natural setting where participants were provided dietary advice but otherwise asked to self-manage the daily caloric intake and data reporting.

Methods: A 6-month weight-reduction program with longitudinal collection of dietary, physical activity, body weight, and fecal microbiome data as well as single-nucleotide polymorphism genotypes in 83 participants was conducted, followed by integration of the high-dimensional data to define the most determining factors for weight loss in a dietician-guided, smartphone-assisted dieting program.

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In this study, a combined alkaline (ALK) and ultrasonication (ULS) sludge lysis-cryptic pretreatment and anoxic/oxic (AO) system (AO + ALK/ULS) was developed to enhance biological nitrogen removal (BNR) in domestic wastewater with a low carbon/nitrogen (C/N) ratio. A real-time control strategy for the AO + ALK/ULS system was designed to optimize the sludge lysate return ratio (R) under variable sludge concentrations and variations in the influent C/N (⩽ 5). A multi-layered backpropagation artificial neural network (BPANN) model with network topology of 1 input layer, 3 hidden layers, and 1 output layer, using the Levenberg-Marquardt algorithm, was developed and validated.

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Article Synopsis
  • * Utilizing density functional theory, the study identifies low-energy structures in transition metal-lithium (TM2Lin) clusters, proposing these clusters act as superatomic molecules where each half functions as an open-shell superatom.
  • * Chemical-bonding analysis confirms the existence of quintuple and triple super bonds in specific lithium-transition metal clusters, encouraging the synthesis and practical applications of compounds with multiple bonds in early transition metals.
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