Publications by authors named "Wei Pei"

Strategies for controlling the size of metal species using zeolites and their catalytic behavior in industrially relevant processes have attracted widespread attention, but the effect of H2O and CO2 on the catalytic performance of zeolite-based metal catalysts remains obscure. This study investigated the influence of H2O and CO2 on CO oxidation over zeolite-based metal catalysts, along with the precise control of active sites through the regulation of Lewis acidity. It was found that the presence of H2O enhanced CO oxidation and alleviated the inhibitory effect of CO2.

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Age is a critical risk factor for cancer, as its incidence and mortality increase with age. However, there is limited understanding of the molecular changes aging induces in tumors. We explored demographic differences between young and old cancer patients and identified age sixty and above as pivotal in cancer prognosis.

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The cancer burden continues to escalate in China. This study was designed to quantify the burden of deaths attributable to modifiable risk factors for major cancers in China from 2012 to 2035, and to provide evidence-based recommendations for cancer management. Using nationally representative data on risk factors and cancer mortality, a comparative risk assessment approach was employed to calculate the temporal trend of population-attributable fractions (PAFs) for 15 modifiable risk factors associated with major cancers in China.

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Objective: This study aimed to develop nomogram predicting overall survival (OS) of patients with peritoneal mesothelioma (PeM) using data from Surveillance, Epidemiology, and End Results (SEER) database and a Chinese institution.

Methods: 1,177 PeM patients from the SEER database were randomized into training and internal validation cohorts at a 7:3 ratio. An external validation cohort consisting of 109 patients was enrolled from a Chinese institution.

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This perspective article delves into a novel integration of Yin-Yang theory-an ancient Chinese philosophical cornerstone-with the sophisticated realm of immunology. Given the intricate concepts inherent in immunology, many students find it challenging to comprehend the delicate mechanisms governing immune equilibrium and regulation. Given the deep-rooted understanding of Yin-Yang theory among Chinese students, we advocate for an educational strategy that contextualizes the concept of immune equilibrium within the framework of Yin-Yang, thereby offering a more intuitive and engaging learning experience.

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Mixed-halide CsPb(Br/Cl) perovskite quantum dots (PeQDs) have attracted extensive attention in light-emitting diodes (LEDs), but their low photoluminescent efficiency and especially poor stability impede their practical applications. Here, we employ bifunctional didodecyldimethylammonium thiocyanide (DDASCN) with a pseudohalogen SCN and branched DDA to obtain blue-emitting CsPbBrCl PeQDs. DDASCN significantly boosts the photoluminescence quantum yield to 92% by inhibiting nonradiative recombination.

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The water diversion project is an effective engineering approach to overcome water scarcity as a water source for the area. However, the complex environmental conditions of long-distance water diversion bring many uncertainties for water security. In this study, we assessed the pollution condition and risk levels of emerging contaminants and traditional contaminants in the water and soil along a water diversion project in Tianjin.

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Currently, the comprehensive effect of the landscape pattern on river water quality has been widely studied. However, the interactive influences of landscape type, namely composition (COM) and configuration (CON) on water quality variations, as well as the specific landscape driving types affecting water quality variations under different spatial and seasonal scales remain unclear. To further improve the effectiveness of landscape planning and water quality protection, this study collected monthly water samples from the Fengyu River Watershed in southwestern China from 2018 to 2021, the Biota-Environment Matching Analysis (Bioenv) was used to identify key metrics representing landscape COM and CON, respectively.

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Photocatalytic N fixation offers promise for ammonia synthesis, yet traditional photocatalysts encounter challenges such as low efficiency and short carrier lifetimes. Atomically precise ligand-metal nanoclusters emerge as a solution to address these issues, but the photophysical mechanism remains elusive. Inspired by the synthesis of AuRu NCs, we investigate the mechanism behind N activation on AuRu, focusing on photoactivity and carrier dynamics.

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The direct antitumor effect of bevacizumab (BEV) has long been debated. Evidence of the direct antitumor activities of drugs are mainly obtained from in vitro experiments, which are greatly affected by experimental conditions. In this study, we evaluated the effect of BEV-containing medium renewal on the results of in vitro cytotoxicity experiments in A549 and U251 cancer cells.

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Introduction: Postoperative ileus (POI) is a postoperative complication that can cause lingering recovery after colorectal resection and a heavy healthcare system burden. Acupuncture aims to prevent postoperative complications, reduce the duration of POI, help recovery and shorten hospital stays. We hypothesise that preoperative electroacupuncture (EA) can promote POI recovery under the enhanced recovery after surgery protocol after laparoscopic surgery in patients with POI.

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The oxygen reduction reaction (ORR), a pivotal process in hydrogen fuel cells crucial for enhancing fuel cell performance through suitable catalysts, remains a challenging aspect of development. This study explores the catalytic potential of germanene on Al (111), taking advantage of the successful preparation of stable reconstructed germanene layers on Al (111) and the excellent catalytic performance exhibited by germanium-based nanomaterials. Through first-principles calculations, we demonstrate that the O2 molecule can be effectively activated on both freestanding and supported germanene nanosheets, featuring kinetic barriers of 0.

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Vascular endothelial growth factor (VEGF) inhibition is an essential targeted strategy for malignant tumors, but its efficacy is severely constrained by drug resistance. The traditional view holds that the target of VEGF inhibition is endothelial cells, and thus compensatory angiogenesis is considered the main mechanism of drug resistance. In this study, we found that tumor cells themselves could develop acquired resistance to VEGF therapy, indicating an independent resistance mechanism apart from angiogenesis.

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Background And Aims: Carex breviculmis is a perennial herb with good resistance and is widely used for forage production and turf management. It is important in ecology, environmental protection and biodiversity conservation, but faces several challenges due to human activities. However, the absence of genome sequences has limited basic research and the improvement of wild plants.

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Background: The purpose of this study was to evaluate the safety and efficacy of preoperative concurrent chemoradiotherapy (preCRT) for locally advanced rectal cancer in older people who were classified as "fit" by comprehensive geriatric assessment (CGA).

Methods: A single-arm, multicenter, phase II trial was designed. Patients were eligible for this study if they were aged 70 years or above and met the standards of "fit" (SIOG1) as evaluated by CGA and of the locally advanced risk category.

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Article Synopsis
  • Heilongjiang reclamation area is essential for China's grain production and food security, making drought risk assessment crucial for effective disaster management strategies.
  • The study uses a comprehensive system of 17 indicators to evaluate agricultural drought risk and employs advanced algorithms, notably the sparrow algorithm-based improved particle swarm optimization (SSAPSO), for better optimization results.
  • Results indicate a general decline in agricultural drought risk over time, with increased exposure and resistance capacity, while the western region faces higher drought risks due to greater hazards and vulnerabilities compared to the eastern region.
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It is a new approach to identify legal or illegal use of morphine through information on municipal wastewater. However, the sources of morphine in wastewater are complex, and distinguishing the contribution of different sources has become a key issue. A total of 262 influent samples from 61 representative wastewater treatment plants in a typical city were collected from October 2022 to March 2023.

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We have synthesized single crystals of a highly stable Ag nanocluster protected by six ligands of diphenyl-2-phosphinic pyridine (DPPY) plus six ligands of phenylacetylene (PhCC). This Ag(DPPY)(PhCC) cluster bears a triangular superatomic Ag core, with the vertex and edge Ag atoms (quasi-triangle Ag) being protected by both P and N bidentate coordination of the six DPPY ligands; meanwhile, the six PhCC ligands μ-C coordination form coordination on the two central Ag atoms capped on both sides of the triangle facet. Apart from the well-organized coordination of the two ligands pertaining to the balanced interactions with the Ag core, this Ag nanocluster exhibits superatomic stability with two delocalized valence electrons (1S||1P), assuming that the six PhCC ligands fix 6 localized electrons from the Ag atoms.

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In this study, we conducted an assembly and analysis of the organelle genomes of Aconitum carmichaelii. Our investigation encompassed the examination of organelle genome structures, gene transfer events, and the environmental selection pressures affecting A. carmichaelii.

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The species are widely distributed in the Qinghai-Tibet Plateau, Himalayas, and Hengduan Mountains in China, and have high medicinal and ornamental value. The high diversity of plant morphology in this genus poses significant challenges for species identification, given their propensity for highland dwelling, which makes it a question worth exploring how they cope with the harsh surroundings. In this study, we recently generated chloroplast (cp) genomes of two species, () and , and compared them with those of ten cp genomes to comprehend cp genomic features, their phylogenetic relationships, and what part they might play in plateau adaptation.

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Article Synopsis
  • - Sleep stage classification is crucial for diagnosing sleep disorders, traditionally relying on 30-second intervals of various biological signals (EOG, ECG, EMG, EEG) to analyze sleep patterns.
  • - A new deep learning approach using a combination of Convolutional Neural Network (CNN) and Long Short-Term Memory (LSTM) models is proposed, which utilizes Mel-frequency Cepstral Coefficient (MFCC) features for more accurate classification of sleep stages across different bio-signal channels.
  • - The study demonstrates that the model performs well on two major datasets, benefiting from 2D MFCC data inputs that improve efficiency by retaining detailed information about sleep stages, while simplifying network depth to enhance performance.
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Synopsis of recent research by authors named "Wei Pei"

  • - Wei Pei's research spans diverse fields, including oncology, environmental science, nanotechnology, and education, highlighting a multidimensional approach to scientific inquiry and application.
  • - Recent findings suggest advancements in survival prediction models for cancer, improved methods for assessing water quality impact due to environmental factors, and innovative educational strategies combining traditional philosophies with modern scientific concepts like immunology.
  • - Pei's work also emphasizes the significance of nanomaterials in enhancing the efficiency of photonic applications and drug delivery systems, addressing challenges such as drug resistance in cancer therapies while exploring the intersection of traditional ecological practices with modern scientific methodologies.