Publications by authors named "WeiFeng Zhang"

Purpose: Multiscale feature fusion is a feasible method to improve tumor segmentation accuracy. However, current multiscale networks have two common problems: 1. Some networks only allow feature fusion between encoders and decoders of the same scale.

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Epidermal electronics is regarded as the next-generation technology, and graphene is a promising electrode, which is a key building block of such devices. However, graphene has a tendency to crack at small strains with a rapidly increased resistance upon stretching. Here, to enable graphene applicable in epidermal electronics, we designed a novel graphene structure that is molybdenum chloride (MoCl)-intercalated few-layer graphene (Mo-FLG) fabricated in a confined environment.

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Objectives: To evaluate the occurrence, abundance, distribution, nature and clinical significance of multinucleated giant cell (MGC) in esophageal cancer.

Materials And Methods: MGCs were examined with conventional pathology, immunohistochemistry and immunofluorescence in 107 esophageal cancer tissues. The findings were correlated to pathological diagnosis and clinical behavior of the cancers.

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Autoimmune diseases such as multiple sclerosis (MS) develop because of failed peripheral immune tolerance for a specific self-antigen (Ag). Numerous approaches for Ag-specific suppression of autoimmune neuroinflammation have been proven effective in experimental autoimmune encephalomyelitis (EAE), an animal model of MS. One such approach is intravenous tolerance induction by injecting a myelin Ag used for triggering EAE.

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Different from Visual Question Answering task that requires to answer only one question about an image, Visual Dialogue task involves multiple rounds of dialogues which cover a broad range of visual content that could be related to any objects, relationships or high-level semantics. Thus one of the key challenges in Visual Dialogue task is to learn a more comprehensive and semantic-rich image representation that can adaptively attend to the visual content referred by variant questions. In this paper, we first propose a novel scheme to depict an image from both visual and semantic views.

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Background: Diabetic kidney disease (DKD) and membranous nephropathy (MN) are the two major causes of end-stage renal disease (ESRD). Increasing evidence has shown that intestinal dysbiosis is associated with many diseases. The aim of this study was to explore the composition of the gut microbiome in DKD and MN patients.

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Elevation of granulocyte-macrophage colony-stimulating factor (GM-CSF)–producing T helper (T) cells has been associated with several autoimmune diseases, suggesting a potential role in the pathogenesis of autoimmunity. However, the identity of GM-CSF–producing T cells has not been closely examined. Using single-cell RNA sequencing and high-dimensional single-cell mass cytometry, we identified eight populations of antigen-experienced CD45RACD4 T cells in blood of healthy individuals including a population of GM-CSF–producing cells, known as TGM, that lacked expression of signature transcription factors and cytokines of established T lineages.

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Background And Aims: Recent advances in deep convolutional neural networks (CNNs) have led to remarkable results in digestive endoscopy. In this study, we aimed to develop CNN-based models for the differential diagnosis of benign esophageal protruded lesions using endoscopic images acquired during real clinical settings.

Methods: We retrospectively reviewed the images from 1217 patients who underwent white-light endoscopy (WLE) and EUS between January 2015 and April 2020.

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Inhibition mechanisms of sulfur-, nitrogen- and phosphorus- based inhibitors on the de novo synthesis of polychlorinated dibenzo-p-dioxins, and dibenzofurans (PCDD/F) were studied by exploring speciation evolution of carbon, chorine and copper in fly ash under laboratory-scale experiments. Significant inhibition of PCDD/Fs by thiourea (TUA) and ammonium dihydrogen phosphate (ADP) was observed as 97.2% and 98.

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China's gains in food production over the past four decades have been associated with substantial agricultural nitrogen losses, which contribute to air and water pollution, greenhouse gas emissions and damage to human health. Here, we explore the potential to improve agricultural production practices that simultaneously increase yields while addressing these environmental challenges. We link agronomic research with air quality modelling for an integrated assessment of four improved nitrogen management strategies: improved farm management practices with nitrogen use reductions; machine deep placement of fertilizer; enhanced-efficiency fertilizer use; and improved manure management.

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We propose and experimentally demonstrate a novel method to realize an optical vector analyzer (OVA) with a largely increased measurement range based on linearly frequency-modulated (LFM) waveform and a recircuiting frequency shifter (RFS) loop. An optical LFM signal is sent into an RFS loop to extend its frequency range by circulating in the loop. At the output of the RFS, the frequency-extended optical LFM signal is launched into a Mach-Zehnder interferometer (MZI) with the device under test (DUT) incorporated in one arm and a delay line in the other arm.

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Purpose: Non-curative resection (NCR) remains problematic in some cases of early gastric carcinomas (EGCs) treated by endoscopic submucosal dissection (ESD). The aim of this study was to identify predictors of NCR, especially of eCura C1 and eCura C2 resections, before ESD and study long-term outcomes of EGC patients with NCR.

Patients And Methods: A retrospective review of medical records was conducted over an 8-year period for EGCs undergoing ESD.

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Purpose: Autophagy inhibition is a novel therapeutic strategy suggested for patients with advanced cancer, especially those who have undergone radiation therapy. In the present study, we investigated whether autophagy inhibitors accelerate the progression of radiation-associated atherosclerosis (RAA).

Methods And Materials: Eight-week-old apolipoprotein (ApoE) mice were fed a Western diet, and their left common carotid arteries were partially ligated to induce atherogenesis.

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Article Synopsis
  • * This research introduces new hybrid 1D perovskites (APbCl with various organic amine cations) that show a broad-range bluish white-light emission when excited by UV light, achieving a high photoluminescence quantum yield (PLQY) of 6.99%.
  • * The emitted light is linked to radiative transitions within the organic cations, and the easy assembly process alongside high PLQYs positions
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Aim: When peritoneal fibrosis (PF) causes ultrafiltration failure in peritoneal dialysis (PD) patients, PD has to be discontinued. Currently, there is no effective way to relieve PF. In this study, we aimed to determine whether miR-15a-5p is involved in PF and to determine the underlying mechanism.

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Background: Glioma is a common fatal brain tumor that affects the central nervous system of the brain and spinal cord.

Methods: This is an original research. The morphology of M059 J cells and U373 cells were detected by microscope, cell neurite outgrowth was observed by immunofluorescence, and the expression of PRPRD and its downstream genes in HMC3 cells, M059 J cells and U373 cells were evaluated and compared with flow cytometry, immunofluorescence and Western blotting assay.

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Background: Recent impressive advances in cancer immunotherapy have been largely derived from cellular immunity. The role of humoral immunity in carcinogenesis has been less understood. Based on our previous observations we hypothesize that an immunoglobulin subtype IgG4 plays an essential role in cancer immune evasion.

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We show the generation of a tunable linearly chirped microwave waveform (LCMW) with an ultra-large time-bandwidth product (TBWP) based on a hybrid Fourier-domain mode-locked (FDML) laser. The key device in the hybrid FDML laser is a silicon photonic integrated micro-disk resonator (MDR) which functions as an optical bandpass filter, to have strong wavelength selectivity and fast frequency tunability. By incorporating the integrated MDR in the fiber-based ring cavity to perform frequency-domain mode locking, an FDML laser is realized and a broadband frequency-chirped optical pulse is generated.

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Background And Aims: Acyl-CoA dehydrogenase deficiencies are a group of mitochondrial fatty-acid oxidation disorders rarely reported in mainland China. We assessed the biochemical and genetic characteristics of patients with short- and very-long-chain-acyl-CoA dehydrogenase deficiencies (SCADD/VLCADD) discovered through newborn screening.

Materials And Methods: We investigated the effects of genetic variations on protein function using in silico prediction and structural modelling.

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Article Synopsis
  • The study examines how BRAF mutations and the expression of certain RNA molecules (BANCR and miR-9) relate to the characteristics of papillary thyroid carcinoma (PTC) in patients.
  • Findings indicate that patients with BRAF mutations tended to have larger tumors and higher rates of metastatic spread, while those with higher BANCR expression showed more invasive features, contrasting with lower LNM when miR-9 levels were high.
  • The research highlights the need for earlier surgical intervention, such as total thyroidectomy, for patients with these genetic and expression profiles to reduce recurrence risk, paving the way for improved treatment strategies.
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An ultrathin (6.2 nm) ferroelectric LaBiFeO (LBFO) film was epitaxially grown on a 0.7 wt% Nb-doped SrTiO (001) single-crystal substrate by carrying out pulsed laser deposition to form a Pt/LaBiFeO/Nb-doped SrTiO heterostructure.

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