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  1. Article ; Online: Multilayer network-based channel selection for motor imagery brain-computer interface.

    Yan, Shaoting / Hu, Yuxia / Zhang, Rui / Qi, Daowei / Hu, Yubo / Yao, Dezhong / Shi, Li / Zhang, Lipeng

    Journal of neural engineering

    2024  Volume 21, Issue 1

    Abstract: ... ...

    Abstract Objective
    MeSH term(s) Humans ; Brain-Computer Interfaces ; Imagination ; Electroencephalography/methods ; Imagery, Psychotherapy ; Brain ; Algorithms
    Language English
    Publishing date 2024-02-22
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2170901-4
    ISSN 1741-2552 ; 1741-2560
    ISSN (online) 1741-2552
    ISSN 1741-2560
    DOI 10.1088/1741-2552/ad2496
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: A CT based radiomics nomogram for differentiation between focal-type autoimmune pancreatitis and pancreatic ductal adenocarcinoma.

    Lu, Jia / Jiang, Nannan / Zhang, Yuqing / Li, Daowei

    Frontiers in oncology

    2023  Volume 13, Page(s) 979437

    Abstract: Objectives: The purpose of this study was to develop and validate an CT-based radiomics nomogram for the preoperative differentiation of focal-type autoimmune pancreatitis from pancreatic ductal adenocarcinoma.: Methods: 96 patients with focal-type ... ...

    Abstract Objectives: The purpose of this study was to develop and validate an CT-based radiomics nomogram for the preoperative differentiation of focal-type autoimmune pancreatitis from pancreatic ductal adenocarcinoma.
    Methods: 96 patients with focal-type autoimmune pancreatitis and pancreatic ductal adenocarcinoma have been enrolled in the study (32 and 64 cases respectively). All cases have been confirmed by imaging, clinical follow-up and/or pathology. The imaging data were considered as: 70% training cohort and 30% test cohort. Pancreatic lesions have been manually delineated by two radiologists and image segmentation was performed to extract radiomic features from the CT images. Independent-sample T tests and LASSO regression were used for feature selection. The training cohort was classified using a variety of machine learning-based classifiers, and 5-fold cross-validation has been performed. The classification performance was evaluated using the test cohort. Multivariate logistic regression analysis was then used to develop a radiomics nomogram model, containing the CT findings and Rad-Score. Calibration curves have been plotted showing the agreement between the predicted and actual probabilities of the radiomics nomogram model. Different patients have been selected to test and evaluate the model prediction process. Finally, receiver operating characteristic curves and decision curves were plotted, and the radiomics nomogram model was compared with a single model to visually assess its diagnostic ability.
    Results: A total of 158 radiomics features were extracted from each image. 7 features were selected to construct the radiomics model, then a variety of classifiers were used for classification and multinomial logistic regression (MLR) was selected to be the optimal classifier. Combining CT findings with radiomics model, a prediction model based on CT findings and radiomics was finally obtained. The nomogram model showed a good sensitivity and specificity with AUCs of 0.87 and 0.83 in training and test cohorts, respectively. The areas under the curve and decision curve analysis showed that the radiomics nomogram model may provide better diagnostic performance than the single model and achieve greater clinical net benefits than the CT finding model and radiomics signature model individually.
    Conclusions: The CT image-based radiomics nomogram model can accurately distinguish between focal-type autoimmune pancreatitis and pancreatic ductal adenocarcinoma patients and provide additional clinical benefits.
    Language English
    Publishing date 2023-03-01
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2649216-7
    ISSN 2234-943X
    ISSN 2234-943X
    DOI 10.3389/fonc.2023.979437
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Erythrocyte-Like Mesoporous PDA@CeO

    Zhang, Lingyu / Gao, Ying / Wang, Zhuoran / Qi, Yanqiu / Li, Lu / Wang, Tingting / Li, Daowei / Wang, Chungang

    ACS applied bio materials

    2024  

    Abstract: Periodontitis is a chronic oral inflammatory disease with the characteristic of excess oxidative stress in the inflammatory site, dramatically decreasing the quality of life. Studies show that nanozymes can be ideal candidates for ROS scavenging in ... ...

    Abstract Periodontitis is a chronic oral inflammatory disease with the characteristic of excess oxidative stress in the inflammatory site, dramatically decreasing the quality of life. Studies show that nanozymes can be ideal candidates for ROS scavenging in periodontitis. Here, we design a multipath anti-inflammatory mesoporous polydopamine@cerium oxide nanobowl (mPDA@CeO
    Language English
    Publishing date 2024-04-08
    Publishing country United States
    Document type Journal Article
    ISSN 2576-6422
    ISSN (online) 2576-6422
    DOI 10.1021/acsabm.3c01213
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Research on the coupled support technology of a composite rock beam-retained roadway roof under close coal seams

    Tingchun Li / Liu Yang / Qingwen Zhu / Daowei Liu / Yichao Wang

    Frontiers in Ecology and Evolution, Vol

    2023  Volume 11

    Abstract: IntroductionThe technology of gob-side entry retaining without coal pillars in close (distance) coal seams is still immature, and the roof control and support technology in this case is not perfect.MethodsIn this paper, the coupled support technology of ... ...

    Abstract IntroductionThe technology of gob-side entry retaining without coal pillars in close (distance) coal seams is still immature, and the roof control and support technology in this case is not perfect.MethodsIn this paper, the coupled support technology of a composite rock beam roof under close coal seams is systematically studied by using theoretical analysis, numerical simulation and field test.ResultsBoth the floor slip calculation results and numerical simulations indicate that the vertical failure depth in the plastic zone of the #8 coal seam has not penetrated the roof of the #9 coal seam after mining, which is consistent with the field electronic imaging results. A theoretical formula for a composite rock beam model anchored by high-prestressed anchor cables was derived, and a formula for the optimal spacing of anchor cables under noncompressive shear failure of the roof was obtained. Identification of the internal stress hazard region of the rock beam provides a basis for determining the locations of vertical support. Through numerical simulation of different support schemes, including roof cutting, arrangement of high-prestressed anchor cables, and setting up of vertical supports, roof cutting was found to effectively reduce the stress of supporting structure and roof pressure. Setting up of vertical supports can reduce the roof convergence by 25.2%, and coupling with anchor cables can reduce the convergence by more than 49.1%. The feasibility of this support scheme was verified through field tests, with a maximum convergence of 99 mm between the roof and floor.DiscussionThis two-way verification approach, in which the damage degree of the roof of a close coal seam is analyzed through multiple means, targeted support plans are proposed, the support mechanisms are explored, and feedback is conducted through field tests, plays a certain guiding role in solving roof control of the gob-side entry retaining under similar geological conditions.
    Keywords close coal seam roadway ; characteristics of roof failure ; surrounding rock control ; coupled support design ; numerical simulation ; Evolution ; QH359-425 ; Ecology ; QH540-549.5
    Subject code 670
    Language English
    Publishing date 2023-10-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Dysregulation of alternative splicing is associated with the pathogenesis of ulcerative colitis.

    Li, Daowei / Tan, Yue

    Biomedical engineering online

    2021  Volume 20, Issue 1, Page(s) 121

    Abstract: Background: Although numerous risk loci for ulcerative colitis (UC) have been identified in the human genome, the pathogenesis of UC remains unclear. Recently, multiple transcriptomic analyses have shown that aberrant gene expression in the colon ... ...

    Abstract Background: Although numerous risk loci for ulcerative colitis (UC) have been identified in the human genome, the pathogenesis of UC remains unclear. Recently, multiple transcriptomic analyses have shown that aberrant gene expression in the colon tissues of UC patients is associated with disease progression. A pioneering study also demonstrated that altered post-transcriptional regulation is involved in the progression of UC. Here, we provide a genome-wide analysis of alternative splicing (AS) signatures in UC patients. We analyzed three datasets containing 74 tissue samples from UC patients and identified over 2000 significant AS events.
    Results: Skipped exon and alternative first exon were the two most significantly altered AS events in UC patients. The immune response-related pathways were remarkably enriched in the UC-related AS events. Genes with significant AS events were more likely to be dysregulated at the expression level.
    Conclusions: We present a genomic landscape of AS events in UC patients based on a combined analysis of two cohorts. Our results indicate that dysregulation of AS may have a pivotal role in determining the pathogenesis of UC. In addition, our study uncovers genes with potential therapeutic implications for UC treatment.
    MeSH term(s) Alternative Splicing/genetics ; Colitis, Ulcerative/genetics ; Gene Expression Profiling ; Humans
    Language English
    Publishing date 2021-11-27
    Publishing country England
    Document type Journal Article
    ISSN 1475-925X
    ISSN (online) 1475-925X
    DOI 10.1186/s12938-021-00959-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Interfacial Reaction-Directed Green Synthesis of CeO

    Li, Jingwen / Hu, Riming / Liu, Wei / Gao, Daowei / Zhao, Huaiqing / Li, Chunsheng / Jiang, Xuchuan / Chen, Guozhu

    Inorganic chemistry

    2023  Volume 62, Issue 8, Page(s) 3692–3702

    Abstract: Direct oxidative coupling of alcohols with amines over cheap but efficient catalysts is a promising choice for imine formation. In this study, porous ... ...

    Abstract Direct oxidative coupling of alcohols with amines over cheap but efficient catalysts is a promising choice for imine formation. In this study, porous CeO
    Language English
    Publishing date 2023-02-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/acs.inorgchem.3c00095
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Adhesive hydrogel releases protocatechualdehyde-Fe

    Wang, Yue / Pan, Ziyi / Cui, Jing / Zhang, Xu / Li, Daowei / Sun, Hongchen / Yang, Bai / Li, Yunfeng

    Acta biomaterialia

    2024  Volume 178, Page(s) 68–82

    Abstract: Oral ulcers can significantly reduce the life quality of patients and even lead to malignant transformations. Local treatments using topical agents are often ineffective because of the wet and dynamic environment of the oral cavity. Current clinical ... ...

    Abstract Oral ulcers can significantly reduce the life quality of patients and even lead to malignant transformations. Local treatments using topical agents are often ineffective because of the wet and dynamic environment of the oral cavity. Current clinical treatments for oral ulcers, such as corticosteroids, have limitations and side effects for long-term usage. Here, we develop adhesive hydrogel patches (AHPs) that effectively promote the healing of oral ulcers in a rat model. The AHPs are comprised of the quaternary ammonium salt of chitosan, aldehyde-functionalized hyaluronic acid, and a tridentate complex of protocatechualdehyde and Fe
    MeSH term(s) Humans ; Rats ; Animals ; Hydrogels/pharmacology ; Adhesives ; Oral Ulcer ; Quality of Life ; Biocompatible Materials ; Inflammation ; Anti-Bacterial Agents/pharmacology ; Benzaldehydes ; Catechols
    Chemical Substances Hydrogels ; protocatechualdehyde (4PVP2HCH4T) ; Adhesives ; Biocompatible Materials ; Anti-Bacterial Agents ; Benzaldehydes ; Catechols
    Language English
    Publishing date 2024-03-05
    Publishing country England
    Document type Journal Article
    ZDB-ID 2173841-5
    ISSN 1878-7568 ; 1742-7061
    ISSN (online) 1878-7568
    ISSN 1742-7061
    DOI 10.1016/j.actbio.2024.02.047
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Effects of mowing frequency on biomass allocation and yield of Leymus chinensis

    Zhao, Chengzhen / Li, Guangdi / Li, Qiang / Zhou, Daowei

    Rangeland ecology & management. 2022 Mar. 28,

    2022  

    Abstract: Effect of mowing frequency on cumulative dry matter yield (cDMY) in Leymus chinensis has been well studied. However, how biomass and nitrogen and phosphorus allocation between leaf, stem and sheath of L. chinensis contribute to its cumulative dry matter ... ...

    Abstract Effect of mowing frequency on cumulative dry matter yield (cDMY) in Leymus chinensis has been well studied. However, how biomass and nitrogen and phosphorus allocation between leaf, stem and sheath of L. chinensis contribute to its cumulative dry matter yield under different mowing frequencies remain unclear. A two-year field experiment with 5 mowing frequencies was conducted to study effects of mowing frequency on biomass allocation and yield of L. chinensis. The mowing frequency treatments were extremely heavy mowing (EM), heavy mowing (HM), moderate mowing (MM) and light mowing (LM) in contrast with a single mowing as control (CK). In general, as mowing frequency increased, the cDMY of L. chinensis decreased (p < 0.05). The cDMY on the MM and LM treatments was equal or greater than that on the CK treatment in both years. Leaf biomass and leaf to individual tiller ratio of L. chinensis decreased as mowing frequency increased due to shorter recovery time although the N and P concentrations of leaves were higher. The leaf to individual tiller ratio increased exponentially (p < 0.001), while the cDMY increased linearly (p < 0.001) with increased leaf biomass. Furthermore, stem and sheath biomass of L. chinensis were significantly lower in all mowing frequency treatments (p < 0.05) compared to the CK treatment, but no changes were observed in stem and sheath between mowing frequency treatments in both years. Our results reveal that leaf biomass primarily contributed the most to cDMY and increased mowing frequency profoundly altered the biomass allocation between leaf, stem and sheath. It is recommended that MM or LM were optimal to efficiently promote DM yield and maintain root biomass of L. chinensis.
    Keywords Leymus chinensis ; administrative management ; biomass ; dry matter partitioning ; ecology ; field experimentation ; leaves ; nitrogen ; phosphorus ; rangelands
    Language English
    Dates of publication 2022-0328
    Publishing place Elsevier Inc.
    Document type Article
    Note Pre-press version
    ZDB-ID 2235093-7
    ISSN 1550-7424
    ISSN 1550-7424
    DOI 10.1016/j.rama.2022.03.010
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Selective Separation of Chalcopyrite from Pyrite Using Sodium Humate: Flotation Behavior and Adsorption Mechanism.

    Sun, Da / Li, Maolin / Fu, Yingying / Pan, Zhiqin / Cui, Rui / Wang, Daowei / Zhang, Ming / Yao, Wei

    ACS omega

    2023  Volume 8, Issue 47, Page(s) 45129–45136

    Abstract: Flotation separation of chalcopyrite from pyrite using lime or cyanides as depressants results in serious problems, such as the blockage of pipelines and environmental pollution. Eco-friendly organics are a future trend for beneficiation plants. In this ... ...

    Abstract Flotation separation of chalcopyrite from pyrite using lime or cyanides as depressants results in serious problems, such as the blockage of pipelines and environmental pollution. Eco-friendly organics are a future trend for beneficiation plants. In this research, the eco-friendly organic depressant sodium humate (SH) was chosen as a depressant to separate chalcopyrite from pyrite by flotation. The results indicated that SH could selectively depress pyrite owing to the oxidation species (FeOOH, Fe
    Language English
    Publishing date 2023-11-16
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.3c07539
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Retracted

    Juan Hu / Qiang Li / Yingxin Huang / Qilin Zhang / Daowei Zhou

    Ecology and Evolution, Vol 12, Iss 8, Pp n/a-n/a (2022)

    Distributions of trace elements with long‐term grazing exclusion in a semi‐arid grassland of inner Mongolia

    2022  

    Abstract: Abstract We still know little about the distributions of trace elements in grassland with long‐term grazing exclusion. The contents, stocks, and proportions of iron (Fe), aluminum (Al), manganese (Mn), and boron (B) in green plant–litter–root–soil were ... ...

    Abstract Abstract We still know little about the distributions of trace elements in grassland with long‐term grazing exclusion. The contents, stocks, and proportions of iron (Fe), aluminum (Al), manganese (Mn), and boron (B) in green plant–litter–root–soil were evaluated by enclosing for 18‐, and 39 years inside the fence (F18 and F39) and grazing outside the fence (F0) in Mongolia grassland. Results showed that F18 and F39 decreased the stocks of Fe, Al, and Mn in green plant and root compared with F0 (p < .05), while increased the stocks of them in litter (p < .05). The F18 obviously increased the stocks of Fe and Mn in soil, especially B (p < .05). The stock of Fe, Al, and Mn in green plant at F39 was 28.6%, 13.9%, and 39.2% higher than that at F18. The stocks of trace elements in undecomposed litter at F39 were increased by 12.7%–52.2% compared with F18, while the stocks of them in complete decomposed litter were decreased by 32.2%–42.5%. The stocks of trace elements in soil at F39 were 9.1%–28.0% lower than that at F18, especially B (p < .05). In conclusion, the trace elements were mainly shifted from green plant and root to soil and complete decomposed litter with 18‐year grazing exclusion. The trace elements were shifted from complete decomposed litter and soil to root with 39‐year grazing exclusion compared with 18‐year grazing exclusion.
    Keywords grassland ; long‐term grazing exclusion ; proportion ; stock ; trace element ; Ecology ; QH540-549.5
    Subject code 630 ; 580
    Language English
    Publishing date 2022-08-01T00:00:00Z
    Publisher Wiley
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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