Publications by authors named "Zefeng Wang"

Objective: By comparing the hip arthroplasty parameters planned with the AIHIP three-dimensional simulation surgery system, this study analyzes the accuracy of the new femoral-side "shoulder-to-shoulder" artificial anatomical marker positioning method in femoral-side prosthesis implantation and the prevention of leg length discrepancy in hip arthroplasty.

Methods: A retrospective collection of 47 patients who underwent initial total hip arthroplasty at our hospital from August 2020 to December 2022 and met the inclusion and exclusion criteria was used as the study subjects. The average age was 67.

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  • Endodontically treated teeth often lose substantial hard tissue, requiring post-and-core restorations for support, but there’s limited information on how remaining dentin thickness affects these restorations.
  • The study aimed to investigate the residual dentin thickness in mandibular premolars after such restorations using cone beam computed tomography (CBCT) and to assess stress distribution through finite element analysis (FEA).
  • Findings indicated that the buccolingual root diameter was generally wider than the mesiodistal diameter, with residual dentin on the buccal side being consistently thinner compared to the lingual side, and most teeth exceeded 1 mm of residual dentin thickness in various dimensions.
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Circular RNAs (circRNAs) have emerged as a large class of stable and conserved RNAs that are derived primarily from back-splicing of pre-mRNAs and expressed in a cell- and tissue-specific fashion. Recent studies have indicated that a subset of circRNAs may undergo translation through cap-independent pathways mediated by internal ribosome entry sites (IRESs), m6A modifications, or IRES-like short elements. Considering the stability and low immunogenicity of circRNAs, transcribed circRNAs hold great promise in biomedical applications.

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Robust bipolar devices based on exclusively ultrawide bandgap (UWBG) semiconductors are highly desired for advanced power electronics. The heterojunction strategy has been a prevailing method for fabricating a bipolar device due to the lack of effective bipolar doping in the same UWBG material. Here, we demonstrate a unique heterojunction design integrating the p-type diamond and n-type ε-GaO that achieves remarkable breakdown voltages surpassing 3000 V.

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Background: Chronic viral infections, such as Human Immunodeficiency Virus (HIV), and their reactivation are considered potential contributing factors to Long-Corona Virus Disease (LC). However, research on the long-term sequelae of Long-COVID in individuals with HIV is limited.

Methods: We conducted a case-control study involving a total of 84 participants categorized into two groups: people living with HIV (PLWH) and people not living with HIV (PNLWH) within the six-month post-infection LC population.

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The fiber signal combiner with high output power and high beam quality is an urgent problem to be solved. In this paper, the structure of the double-cone (both the input fibers and the output fiber are tapered) is proposed to improve the beam quality of the fiber signal combiner, and it is verified by simulation and experiment, with the output fiber of 50 µm core tapered to 35 µm as an example. The prepared 3 × 1 double-cone fiber signal combiner reaches the output power of 8.

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Stimulated Raman scattering (SRS) and transverse mode instability (TMI) effects are crucial limitation factors for further power scaling of high-power fiber amplifiers with near-diffraction-limited beam quality. It is an important research direction to carry out laser system optimization from the perspective of seed construction. In this work, we experimentally investigated the impact of utilizing different seed lasers on the SRS and TMI characteristics in high power ytterbium-doped fiber amplifiers.

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Background: Tennis, the second-largest ball game in the world, has a particularly wide audience. To date, little research has been conducted on the biomechanics of female serves.

Purpose: The purpose of this study was to capture the key moments by using 1,000 frames/s high-speed video analysis, to analyze the kinematics of the serving techniques of national athletes and provincial athletes, to determine the differences between the two levels of athletes, and to provide theoretical references for the improvement of scientific training level.

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  • Cardiac conduction velocity (CV) measures how quickly electrical impulses travel through the heart muscle, broken down into longitudinal, transverse, and normal components.
  • * The study reviews CV values from both clinical and experimental investigations of human hearts that have suffered infarcts, as well as data from animal studies.
  • * It aims to provide guidance on CV and conductivity selection for cardiac modeling, with a focus on applications in personalized models for heart rhythm disorders.
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Lactylation, a recently identified form of protein post-translational modification (PTM), has emerged as a key player in cancer biology. The Warburg effect, a hallmark of tumour metabolism, underscores the significance of lactylation in cancer progression. By regulating gene transcription and protein function, lactylation facilitates metabolic reprogramming, enabling tumours to adapt to nutrient limitations and sustain rapid growth.

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Sulfur hexafluoride (SF) is widely used in the power industry and significantly contributes to the greenhouse effect, necessitating the development of efficient materials for SF capture, particularly fluorine-containing materials. However, existing fluorine-containing materials often require complex monomers and high synthesis temperatures. Herein, we report the synthesis of a fluorine-functionalized carbazole-based nanoporous organic polymer (CNOP-7) at room temperature, using commercially available 4,4'-bis(9-carbazole-9-yl)-1,1'-biphenyl and 1,1,1-trifluoroacetone.

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Background: The advancements in artificial intelligence (AI) technology for image recognition were propelling molecular pathology research into a new era.

Objective: To summarize the hot spots and research trends in the field of molecular pathology image recognition.

Methods: Relevant articles from January 1st, 2010, to August 25th, 2023, were retrieved from the Web of Science Core Collection.

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Mid-infrared (MIR) fiber lasers are important for a wide range of applications in sensing, spectroscopy, imaging, defense, and security. Some progress has been made in the research of MIR fiber lasers based on soft glass fibers, however, the emission range of rare-earth ions and the robustness of the host materials are still a major challenge for MIR fiber lasers. The large number of gases provide a variety of optical transitions in the MIR band.

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Escherichia coli (E. coli) is a ubiquitous symbiotic bacterium in the gut, and the diversity of E. coli genes determines the diversity of its functions.

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  • The study looks at five personality traits from traditional Chinese medicine and how they can be measured using new technology.
  • Instead of asking people how they feel, researchers used eye tracking to see how people react to different emotions.
  • They found that using special computer techniques (like Lasso and Logistic Regression) helped accurately predict these personality traits based on where and how people's eyes move.
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Designing adsorbent materials with high SO adsorption capacities and selectivity remains a significant challenge in flue gas desulfurization. This work focuses on developing two nitrogen-rich nanoporous polyaminal networks (NPANs), which demonstrate promising capabilities for SO adsorption and separation. Two nitrogen-rich nanoporous polyaminal networks, NPAN-5 and NPAN-6, were synthesized via a one-pot method using thiophene-2,5-dicarbaldehyde and furan-2,5-dicarbaldehyde with 1,4-bis(2,4-diamino-1,3,5-triazine)-benzene, respectively.

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Addressing the environmental impact of SF, we synthesized a fluorine-functionalized triphenylamine-based nanoporous organic polymer, ANOP-8, at room temperature using ,,','-tetraphenylbenzidine and 2,3,4,5,6-pentafluorobenzaldehyde. ANOP-8, which incorporates 14.86% fluorine, has a BET surface area of 694 m g and a robust C-C structure.

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  • The study aimed to assess the effectiveness of 2D-STI and RT-3DE imaging techniques in evaluating structural and functional changes in the left atrium of patients with paroxysmal atrial fibrillation after undergoing radiofrequency catheter ablation.
  • A total of 44 PAF patients and 32 healthy controls were examined, comparing echocardiographic parameters like left atrial dimensions, volumes, and ejection fractions before and at various intervals after the procedure.
  • Results showed that PAF patients had initially larger left atrial sizes and lower efficiency, but significant improvements in LA function and measurements were observed up to 6 months post-ablation, highlighting the usefulness of these imaging methods for treatment monitoring.
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The ideal smart food-packaging film exhibits responsive color warnings and antimicrobial properties when food metamorphism starts. However, in practical applications, these film responses are slow, usually taking several days, which is not conducive to effective antimicrobial effects. In this study, natural plant-derived curcumin was introduced into waterborne polyurethane (WPU) dispersions through two modes: free-state and end-capping.

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  • The study investigates the bioaccumulation of phthalic acid esters (PAEs) in fish within a mangrove ecosystem, focusing on understanding how these chemicals enter the marine environment through plastic manufacturing.
  • Researchers collected samples of fish and their potential food sources from Dongzhai Harbor, analyzing concentrations of nine PAEs and exploring their dietary habits using stable nitrogen and carbon isotope analysis.
  • Findings showed that the median PAE concentration in fish was moderate, with di-n-butyl phthalate (DBP) and diisononyl ortho-phthalate (DINP) being the most prevalent; demersal fish had higher PAE levels due to their diet, highlighting the importance of habitat and food source in PA
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Protein methylation is a functionally important post-translational modification that occurs on diverse amino acid residues. The current proteomics approaches are inefficient to discover the methylation on residues other than Arg and Lys, which hinders the deep understanding of the functional role of rare protein methylation. Herein, we present a methyl-specific metabolic labeling approach for global methylome mapping, which enable the acquisition of methylome dataset covering diverse methylation types.

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High HO levels are widely present at the infection sites or in the biofilm microenvironment. Herein, hemin with peroxidase-like catalytic activity and its substrate, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), are simultaneously introduced into a liposomal nanoparticle containing thermosensitive 2,2'-azobis[2-(2-imidazolin-2-yl) propane] dihydrochloride (AIBI)-loaded bovine serum albumin (BAG), rationally constructing an HO-activatable liposomal nanobomb (Lipo@BHA) for combating biofilm-associated bacterial infections with high performance. In the presence of HO, hemin can catalyze the conversion of ABTS into its oxidized form (ABTS·) with strong near-infrared (NIR) absorption, which produces photonic hyperpyrexia to cause the decomposition of AIBI into oxygen-independent alkyl radicals (·R) and nitrogen (N) microbubbles.

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Background: Subarachnoid hemorrhage (SAH) represents a severe stroke subtype. Our study aims to develop gender-specific prognostic prediction models derived from distinct prognostic factors observed among different-gender patients.

Methods: Inclusion comprised SAH-diagnosed patients from January 2014 to March 2016 in our institution.

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The emissions of sulfur dioxide (SO) from combustion exhaust gases pose significant risks to public health and the environment due to their harmful effects. Therefore, the development of highly efficient adsorbent polymers capable of capturing SO with high capacity and selectivity has emerged as a critical challenge in recent years. However, existing polymers often exhibit poor SO/CO and SO/N selectivity.

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  • Ventricular tachycardia (VT) is a dangerous heart condition often seen in patients with heart attacks, and this study focuses on optimizing computational modeling to analyze it more effectively and efficiently.
  • Researchers created various heart models based on MRI data from six patients and tested these models to see how different mesh sizes affected the accuracy of VT predictions.
  • Results showed that a mesh size of 350 µm provided over 85% accuracy for predicting clinically relevant VT, while larger mesh sizes decreased prediction accuracy, emphasizing the importance of balancing computational resources with model precision.
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