LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 560

Search options

  1. Article ; Online: New Chemically Amplified Positive Photoresist with Phenolic Resin Modified by GMA and BOC Protection.

    Liu, Junjun / Kang, Wenbing

    Polymers

    2023  Volume 15, Issue 7

    Abstract: In this paper, a chemically amplified (CA) i-line photoresist system is described including a phenolic resin modified with glycidyl methacrylate (GMA) addition and protected with di-tert-butyl dicarbonate (BOC group), here called JB resin. JB resin with ... ...

    Abstract In this paper, a chemically amplified (CA) i-line photoresist system is described including a phenolic resin modified with glycidyl methacrylate (GMA) addition and protected with di-tert-butyl dicarbonate (BOC group), here called JB resin. JB resin with different degrees of BOC protection was synthesized and characterized with ultraviolet spectrophotometry, Fourier transform infrared spectroscopy and gel permeation chromatography. These resins were also evaluated in CA resists by formulating the JB resin with a photoacid generator (PAG) and tested at 405 nm and 365 nm exposure wavelengths. The BOC protection ratio at approximately 25 mol% of the Novolak phenol group showed the best performance. The resist showed high sensitivity (approximately 190 mJ/cm
    Language English
    Publishing date 2023-03-23
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527146-5
    ISSN 2073-4360 ; 2073-4360
    ISSN (online) 2073-4360
    ISSN 2073-4360
    DOI 10.3390/polym15071598
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  2. Article ; Online: Selenium Counteracts Tight Junction Disruption and Attenuates the NF-κB-Mediated Inflammatory Response in Staphylococcus aureus-Infected Mouse Mammary Glands.

    Liu, Junjun / Wang, Juan / Xv, Shiyang / Bi, Chongliang

    Biological trace element research

    2024  

    Abstract: Tight junctions (TJs) are the key determinant of barrier function in the mammary gland, with their disruption being associated with the pathogenesis and progression of mastitis, especially in the case of Staphylococcus aureus (S. aureus) infection. This ... ...

    Abstract Tight junctions (TJs) are the key determinant of barrier function in the mammary gland, with their disruption being associated with the pathogenesis and progression of mastitis, especially in the case of Staphylococcus aureus (S. aureus) infection. This study investigated whether selenium (Se) could attenuate S. aureus-induced mastitis by inhibiting inflammation and protecting mammary gland TJs in mice. The expression profiles of S. aureus-infected gland tissues derived from the gene expression omnibus dataset were analyzed. We found cytokine production, cell junctions, the nuclear transcription factor-κB (NF-κB) signalling pathway, and inflammatory responses associated with the differentially expressed genes, as revealed by Gene Ontology (GO) and Kyoto Encyclopaedia of Genes and Genomes (KEGG) enrichment analyses. Se reduced the mRNA expression and production of inflammatory cytokines, including tumour necrosis factor-α (TNF-α) and interleukin-6 (IL-6), and decreased phosphorylation levels of the NF-κB complex. Moreover, Se alleviated structural damage and microvillus injury in mammary glands. Immunohistochemical staining revealed that Se increased the expression of Claudin-3; Western blot analysis revealed increased protein levels of Occludin and Tricellulin in the group supplemented with dietary Se. In summary, Se counteracted TJ disruption and attenuated NF-κB-mediated inflammatory responses in S. aureus-infected mouse mammary glands.
    Language English
    Publishing date 2024-04-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 445336-0
    ISSN 1559-0720 ; 0163-4984
    ISSN (online) 1559-0720
    ISSN 0163-4984
    DOI 10.1007/s12011-024-04210-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.B 2323: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  3. Article: A novel single robot image shadow detection method based on convolutional block attention module and unsupervised learning network.

    Zhang, Jun / Liu, Junjun

    Frontiers in neurorobotics

    2022  Volume 16, Page(s) 1059497

    Abstract: Shadow detection plays a very important role in image processing. Although many algorithms have been proposed in different environments, it is still a challenging task to detect shadows in natural scenes. In this paper, we propose a convolutional block ... ...

    Abstract Shadow detection plays a very important role in image processing. Although many algorithms have been proposed in different environments, it is still a challenging task to detect shadows in natural scenes. In this paper, we propose a convolutional block attention module (CBAM) and unsupervised domain adaptation adversarial learning network for single image shadow detection. The new method mainly contains three steps. Firstly, in order to reduce the data deviation between the domains, the hierarchical domain adaptation strategy is adopted to calibrate the feature distribution from low level to high level between the source domain and the target domain. Secondly, in order to enhance the soft shadow detection ability of the model, the boundary adversarial branch is proposed to obtain structured shadow boundary. Meanwhile, a CBAM is added in the model to reduce the correlation between different semantic information. Thirdly, the entropy adversarial branch is combined to further suppress the high uncertainty at the boundary of the prediction results, and it obtains the smooth and accurate shadow boundary. Finally, we conduct abundant experiments on public datasets, the RMSE has the lowest values with 9.6 and BER with 6.6 on ISTD dataset, the results show that the proposed shadow detection method has better edge structure compared with the existing deep learning detection methods.
    Language English
    Publishing date 2022-11-08
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2453002-5
    ISSN 1662-5218
    ISSN 1662-5218
    DOI 10.3389/fnbot.2022.1059497
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  4. Article ; Online: Xenopus

    Liu, Junjun / Zhang, Chuanmao

    Biophysics reports

    2022  Volume 9, Issue 4, Page(s) 195–205

    Abstract: ... ...

    Abstract Xenopus
    Language English
    Publishing date 2022-07-18
    Publishing country China
    Document type Journal Article
    ISSN 2364-3420
    ISSN (online) 2364-3420
    DOI 10.52601/bpr.2023.230016
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  5. Article ; Online: The Longitudinal Relationship between Parent-Child Attachment and Adolescents' Gratitude: The Mediating Role of Perceived Parental Communal Strength.

    Li, Song / Liu, Junjun / Pan, Yangu / Chen, Xu

    Journal of youth and adolescence

    2023  Volume 52, Issue 12, Page(s) 2661–2671

    Abstract: Previous research has found a significant association between parent-child attachment and gratitude, while the directionality of this association and its potential mechanisms remain unclear. This study examined the longitudinal associations between ... ...

    Abstract Previous research has found a significant association between parent-child attachment and gratitude, while the directionality of this association and its potential mechanisms remain unclear. This study examined the longitudinal associations between parent-child attachment, gratitude, and perceived parental communal strength, which is adolescents' perception of their parents' willingness to make sacrifices to provide care and meet their needs. A total of 1348 adolescents and one of their parents (M
    MeSH term(s) Female ; Humans ; Adolescent ; Child ; Male ; Parents ; Anxiety ; Anxiety Disorders ; Parent-Child Relations
    Language English
    Publishing date 2023-09-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 186743-x
    ISSN 1573-6601 ; 0047-2891
    ISSN (online) 1573-6601
    ISSN 0047-2891
    DOI 10.1007/s10964-023-01857-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.B 3120: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  6. Article ; Online: Variations of plasma oxidative stress levels in male patients with chronic schizophrenia. Correlations with psychopathology and matrix metalloproteinase-9: a case-control study.

    Yang, Haidong / Zhang, Caiyi / Yang, Man / Liu, Junjun / Zhang, Yuting / Liu, Dongliang / Zhang, Xiaobin

    BMC psychiatry

    2024  Volume 24, Issue 1, Page(s) 20

    Abstract: Background: Accumulating evidence has indicated that oxidative stress (OS) and matrix metalloproteinase-9 (MMP-9) may contribute to the mechanism of schizophrenia. In the present study, we aimed to evaluate the associations of OS parameters and MMP-9 ... ...

    Abstract Background: Accumulating evidence has indicated that oxidative stress (OS) and matrix metalloproteinase-9 (MMP-9) may contribute to the mechanism of schizophrenia. In the present study, we aimed to evaluate the associations of OS parameters and MMP-9 levels with psychopathological symptoms in male chronic schizophrenia patients.
    Methods: This study was an observational, cross-sectional, retrospective case-control study. Plasma hydrogen peroxide (H
    Results: Our results demonstrated that levels of antioxidant enzymes, SOD, GSH-Px, H
    Conclusions: Our results showed that alterations of plasma OS parameters in male patients with chronic schizophrenia were associated with psychopathology and MMP-9, suggesting that OS and neuroinflammation may play important role in the mechanism of schizophrenia.
    MeSH term(s) Humans ; Male ; Antioxidants ; Case-Control Studies ; Cross-Sectional Studies ; Glutathione Peroxidase ; Hydrogen Peroxide ; Malondialdehyde ; Matrix Metalloproteinase 9 ; Oxidative Stress ; Retrospective Studies ; Schizophrenia/complications ; Superoxide Dismutase/metabolism
    Chemical Substances Antioxidants ; Glutathione Peroxidase (EC 1.11.1.9) ; Hydrogen Peroxide (BBX060AN9V) ; Malondialdehyde (4Y8F71G49Q) ; Matrix Metalloproteinase 9 (EC 3.4.24.35) ; Superoxide Dismutase (EC 1.15.1.1) ; MMP9 protein, human (EC 3.4.24.35)
    Language English
    Publishing date 2024-01-03
    Publishing country England
    Document type Observational Study ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2050438-X
    ISSN 1471-244X ; 1471-244X
    ISSN (online) 1471-244X
    ISSN 1471-244X
    DOI 10.1186/s12888-023-05479-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  7. Article ; Online: Rapid Photoacoustic Exhaust Gas Analyzer for Simultaneous Measurement of Nitrogen Dioxide and Sulfur Dioxide.

    Qi, Hongchao / Zhao, Xinyu / Xu, Yufu / Yang, Ling / Liu, Junjun / Chen, Ke

    Analytical chemistry

    2024  Volume 96, Issue 13, Page(s) 5258–5264

    Abstract: A rapid photoacoustic (PA) exhaust gas analyzer is presented for simultaneous measurements of nitrogen dioxide ( ... ...

    Abstract A rapid photoacoustic (PA) exhaust gas analyzer is presented for simultaneous measurements of nitrogen dioxide (NO
    Language English
    Publishing date 2024-03-19
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1508-8
    ISSN 1520-6882 ; 0003-2700
    ISSN (online) 1520-6882
    ISSN 0003-2700
    DOI 10.1021/acs.analchem.3c05936
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 4033: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  8. Article: The regulatory role of m

    Ye, Diwen / Zhang, Yongjiao / Zhang, Bingyang / Liu, Junjun / Wei, Tianshu / Lu, Sumei

    Frontiers in physiology

    2024  Volume 15, Page(s) 1271874

    Abstract: Metabolic syndromes are characterized by various complications caused by disrupted glucose and lipid metabolism, which are major factors affecting the health of a population. However, existing diagnostic and treatment strategies have limitations, such as ...

    Abstract Metabolic syndromes are characterized by various complications caused by disrupted glucose and lipid metabolism, which are major factors affecting the health of a population. However, existing diagnostic and treatment strategies have limitations, such as the lack of early diagnostic and therapeutic approaches, variability in patient responses to treatment, and cost-effectiveness. Therefore, developing alternative solutions for metabolic syndromes is crucial. N6-methyladenosine (m
    Language English
    Publishing date 2024-03-14
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2564217-0
    ISSN 1664-042X
    ISSN 1664-042X
    DOI 10.3389/fphys.2024.1271874
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  9. Article ; Online: Prognostic factors for invasive mucinous adenocarcinoma of the lung: systematic review and meta-analysis.

    Zhao, Ting / Yi, Jianhua / Luo, Dan / Liu, Junjun / Fan, Xianming / Wu, Qibiao / Wang, Wenjun

    World journal of surgical oncology

    2024  Volume 22, Issue 1, Page(s) 41

    Abstract: Background: Invasive mucinous adenocarcinoma of the lung (IMA) is a unique and rare subtype of lung adenocarcinoma with poorly defined prognostic factors and highly controversial studies. Hence, this study aimed to comprehensively identify and summarize ...

    Abstract Background: Invasive mucinous adenocarcinoma of the lung (IMA) is a unique and rare subtype of lung adenocarcinoma with poorly defined prognostic factors and highly controversial studies. Hence, this study aimed to comprehensively identify and summarize the prognostic factors associated with IMA.
    Methods: A comprehensive search of relevant literature was conducted in the PubMed, Embase, Cochrane, and Web of Science databases from their inception until June 2023. The pooled hazard ratio (HR) and corresponding 95% confidence intervals (CI) of overall survival (OS) and/or disease-free survival (DFS) were obtained to evaluate potential prognostic factors.
    Results: A total of 1062 patients from 11 studies were included. In univariate analysis, we found that gender, age, TNM stage, smoking history, lymph node metastasis, pleural metastasis, spread through air spaces (STAS), tumor size, pathological grade, computed tomography (CT) findings of consolidative-type morphology, pneumonia type, and well-defined heterogeneous ground-glass opacity (GGO) were risk factors for IMA, and spiculated margin sign was a protective factor. In multivariate analysis, smoking history, lymph node metastasis, pathological grade, STAS, tumor size, and pneumonia type sign were found to be risk factors. There was not enough evidence that epidermal growth factor receptor (EGFR) mutations, anaplastic lymphoma kinase (ALK) mutations, CT signs of lobulated margin, and air bronchogram were related to the prognosis for IMA.
    Conclusion: In this study, we comprehensively analyzed prognostic factors for invasive mucinous adenocarcinoma of the lung in univariate and multivariate analyses of OS and/or DFS. Finally, 12 risk factors and 1 protective factor were identified. These findings may help guide the clinical management of patients with invasive mucinous adenocarcinoma of the lung.
    MeSH term(s) Humans ; Adenocarcinoma of Lung/pathology ; Adenocarcinoma, Mucinous/surgery ; Adenocarcinoma, Mucinous/pathology ; Lung/pathology ; Lung Neoplasms/pathology ; Lymphatic Metastasis ; Neoplasm Staging ; Pneumonia/pathology ; Prognosis ; Retrospective Studies ; Male ; Female
    Language English
    Publishing date 2024-02-02
    Publishing country England
    Document type Meta-Analysis ; Systematic Review ; Journal Article
    ZDB-ID 2118383-1
    ISSN 1477-7819 ; 1477-7819
    ISSN (online) 1477-7819
    ISSN 1477-7819
    DOI 10.1186/s12957-024-03326-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  10. Article ; Online: Exceptional Lithography Sensitivity Boosted by Hexafluoroisopropanols in Photoresists.

    Liu, Junjun / Wang, Dong / Li, Yitan / Wang, Haihua / Chen, Huan / Wang, Qianqian / Kang, Wenbing

    Polymers

    2024  Volume 16, Issue 6

    Abstract: Advanced lithography requires highly sensitive photoresists to improve the lithographic efficiency, and it is critical, yet challenging, to develop high-sensitivity photoresists and imaging strategies. Here, we report a novel strategy for ultra-high ... ...

    Abstract Advanced lithography requires highly sensitive photoresists to improve the lithographic efficiency, and it is critical, yet challenging, to develop high-sensitivity photoresists and imaging strategies. Here, we report a novel strategy for ultra-high sensitivity using hexafluoroisopropanol (HFIP)-containing fluoropolymer photoresists. The incorporation of HFIP, with its strong electrophilic property and the electron-withdrawing effect of the fluorine atoms, significantly increases the acidity of the photoresist after exposure, enabling imaging without conventional photoacid generators (PAGs). The HFIP-containing photoresist has been evaluated by electron beam lithography to achieve a trench of ~40 nm at an extremely low dose of 3 μC/cm
    Language English
    Publishing date 2024-03-15
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527146-5
    ISSN 2073-4360 ; 2073-4360
    ISSN (online) 2073-4360
    ISSN 2073-4360
    DOI 10.3390/polym16060825
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

To top