LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 58

Search options

  1. Article ; Online: Prognostic value of pretreatment procalcitonin and neutrophil-lymphocyte ratio in extensive-stage small-cell lung cancer.

    Chen, Dongfang / Xu, Jianlin / Zhao, Yizhuo / Han, Baohui / Zhong, Runbo

    Cancer biology & therapy

    2024  Volume 25, Issue 1, Page(s) 2331273

    Abstract: Background: To investigate the influence of pretreatment neutrophil-to-lymphocyte ratio (NLR) and procalcitonin (PCT) on progression-free survival (PFS) in extensive-stage small-cell lung cancer (SCLC) patients.: Method: A total of 100 extensive- ... ...

    Abstract Background: To investigate the influence of pretreatment neutrophil-to-lymphocyte ratio (NLR) and procalcitonin (PCT) on progression-free survival (PFS) in extensive-stage small-cell lung cancer (SCLC) patients.
    Method: A total of 100 extensive-stage SCLC patients were enrolled in our study. Patients were stratified according to the median values of pretreatment NLR and PCT levels: low NLR group (NLR ≤3.17), high NLR group (NLR＞3.17), low PCT group (PCT ≤0.06; ng/ml), high PCT group (PCT＞0.06; ng/ml). The Kaplan-Meier method and multivariable Cox regression model were used to reveal the prognostic effects of pretreatment NLR and PCT on PFS.
    Results: The median PFS of the total extensive-stage SCLC patients was 6.0 months. The median PFS of low pretreatment NLR group (NLR ≤3.17) was not significantly different from that of high pretreatment NLR group (6.2 months vs 5.8 months;
    Conclusion: Pretreatment PCT is an independent factor associated with PFS in extensive-stage SCLC patients treated with first-line chemotherapy, but pretreatment NLR reflects no significant prognostic value in our study.
    MeSH term(s) Humans ; Lung Neoplasms/drug therapy ; Prognosis ; Neutrophils ; Procalcitonin/therapeutic use ; Lymphocyte Count ; Retrospective Studies ; Small Cell Lung Carcinoma/drug therapy ; Lymphocytes
    Chemical Substances Procalcitonin
    Language English
    Publishing date 2024-03-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2146305-0
    ISSN 1555-8576 ; 1538-4047
    ISSN (online) 1555-8576
    ISSN 1538-4047
    DOI 10.1080/15384047.2024.2331273
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 5887: 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.

  2. Article ; Online: Erasable Domain Wall Current-Dominated Resistive Switching in BiFeO

    Chen, Dongfang / Tan, Xiaojun / Shen, Bowen / Jiang, Jun

    ACS applied materials & interfaces

    2023  Volume 15, Issue 20, Page(s) 25041–25048

    Abstract: Electric transport in the charged domain wall (CDW) region has emerged as a promising phenomenon for the development of next-generation ferro-resistive memory with ultrahigh data storage density. However, accurately measuring the conductivity of CDWs ... ...

    Abstract Electric transport in the charged domain wall (CDW) region has emerged as a promising phenomenon for the development of next-generation ferro-resistive memory with ultrahigh data storage density. However, accurately measuring the conductivity of CDWs induced by polarization reversal remains challenging due to the polarization modulation of the Schottky barrier at the thin film-electrode interface, which could partially contribute to the collected "on" current of the device. Here, we propose carefully selecting an electrode that can suppress the effect of interfacial barrier modulation induced by polarization reversal, allowing the collected current mainly from the conductive CDWs. The experiment was conducted on epitaxial BiFeO
    Language English
    Publishing date 2023-05-15
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.3c02710
    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.

  3. Article ; Online: Effect on bread properties of partial substitution of wheat flour with oat flour and flour from oat grain germinated in the light or dark

    He, Xinyi / Li, Xiao / Chen, Dongfang / Huang, Shirong / Tao, Nengguo

    International Journal of Food Science & Technology. 2023 Apr., v. 58, no. 4 p.1979-1986

    2023  

    Abstract: Native oat flour (NOF), light‐germinated oat flour (LOF), and dark‐germinated oat flour (DOF) were used to replace a portion of wheat flour to make bread. Adding 10% (w/w) oat flour contributed to a lower specific volume and darker crust and crumb than ... ...

    Abstract Native oat flour (NOF), light‐germinated oat flour (LOF), and dark‐germinated oat flour (DOF) were used to replace a portion of wheat flour to make bread. Adding 10% (w/w) oat flour contributed to a lower specific volume and darker crust and crumb than control, while light treatment during germination, significantly affected these three indices. Adding oat flour increased the hardness and chewiness values of bread crumbs by nearly 1–2‐fold compared to the control. Adding oat flour especially germinated oat flour significantly increased the bio‐accessible polyphenol content of bread. Compared to the control, the predicted glycaemic index (pGI) value of oat bread was substantially lower. Adding oat flour especially germinated oat flour to bread has the potential to increase bio‐accessible phenolic content and decrease pGI value, but the successful application requires further studies to optimise formulation considering the poor textural characteristics.
    Keywords breads ; chewiness ; germination ; glycemic index ; hardness ; oat flour ; oats ; polyphenols ; technology ; wheat flour
    Language English
    Dates of publication 2023-04
    Size p. 1979-1986.
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ZDB-ID 883561-5
    ISSN 0950-5423
    ISSN 0950-5423
    DOI 10.1111/ijfs.16352
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 2121: Show issues

    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.

  4. Article ; Online: Lifetime prediction method of proton exchange membrane fuel cells based on current degradation law

    Pei, Pucheng / Meng, Yining / Chen, Dongfang / Ren, Peng / Wang, Mingkai / Wang, Xizhong

    Energy. 2023 Feb., v. 265 p.126341-

    2023  

    Abstract: Lifetime evaluation and prediction of proton exchange membrane fuel cells (PEMFCs) are essential for the lifetime extension and commercialization of fuel cells. Under the background that the accelerated stress test (AST) is difficult to evaluate the ... ...

    Abstract Lifetime evaluation and prediction of proton exchange membrane fuel cells (PEMFCs) are essential for the lifetime extension and commercialization of fuel cells. Under the background that the accelerated stress test (AST) is difficult to evaluate the lifetime accurately, and the actual road test is time-consuming and costly, it is necessary to propose a quick lifetime prediction method of fuel cells. In this study, the current degradation law is analyzed based on the first-order kinetic model, and the lifetime prediction method based on the current degradation law is proposed. Moreover, the scale factor k is proposed to completely describe the fuel cell degradation due to complex degradation causes, and its calculation and selection methods are discussed. Finally, the accuracy of the proposed method is verified by the experimental results of single cells and fuel cell stacks, and the maximum relative error is less than 5% when the fuel cells conform to the first-order kinetic model. The lifetime prediction method of PEMFCs based on current degradation law improves the utilization of degradation information in current density, which is a feasible way for automotive fuel cell lifetime evaluation and prediction.
    Keywords commercialization ; energy ; fuel cells ; fuels ; kinetics ; prediction ; Fuel cell lifetime prediction ; Current degradation law ; First-order kinetic model ; Proton exchange membrane fuel cell
    Language English
    Dates of publication 2023-02
    Publishing place Elsevier Ltd
    Document type Article ; Online
    ZDB-ID 2019804-8
    ISSN 0360-5442 ; 0360-5442
    ISSN (online) 0360-5442
    ISSN 0360-5442
    DOI 10.1016/j.energy.2022.126341
    Database NAL-Catalogue (AGRICOLA)

    Full text 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.

  5. Article ; Online: Research on Comprehensive Evaluation Method of Airport Runway Operational Effectiveness

    Lei Jichao / Chong Xiaolei / Chen Dongfang

    E3S Web of Conferences, Vol 198, p

    2020  Volume 03018

    Abstract: In order to assess whether the runway can meet safe, reliable and efficient objectives, a comprehensive evaluation indicator system needs to be established for evaluation. Firstly, the runway operation system is established, and the evaluation indicators ...

    Abstract In order to assess whether the runway can meet safe, reliable and efficient objectives, a comprehensive evaluation indicator system needs to be established for evaluation. Firstly, the runway operation system is established, and the evaluation indicators of runway performance are divided into five aspects: personnel factors, support facility, mission demand, operating environment and management factors and then establish a comprehensive evaluation index system. Secondly, the TOPSIS evaluation model of game theory combination weighting is established, game theory is used to optimize the weights of the weights obtained by AHP and CRITIC, and the ideal solution (TOPSIS) is used to comprehensively evaluate the runway performance. Finally, the model was used to evaluate the runway performance levels of the three airports, and the three evaluation methods were compared. The results show that the results of the runway performance evaluation using the model are in line with the actual operation of the airport. The method is simple and the results are scientific and objective, and it have good versatility.
    Keywords Environmental sciences ; GE1-350
    Subject code 380
    Language English
    Publishing date 2020-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    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.

  6. Article ; Online: Isolation, Identification and Antibacterial Mechanism of the Main Antibacterial Component from Pickled and Dried Mustard (

    Huang, Shirong / Chen, Xiaojie / Yan, Rui / Huang, Meng / Chen, Dongfang

    Molecules (Basel, Switzerland)

    2022  Volume 27, Issue 8

    Abstract: Our previous study showed that the ethyl acetate fraction (EAF) from an ethanolic extract of pickled and dried mustard ( ...

    Abstract Our previous study showed that the ethyl acetate fraction (EAF) from an ethanolic extract of pickled and dried mustard (
    MeSH term(s) Anti-Bacterial Agents/chemistry ; Microbial Sensitivity Tests ; Mustard Plant ; Plant Extracts/chemistry ; Spectroscopy, Fourier Transform Infrared ; Staphylococcus aureus ; Succinic Acid
    Chemical Substances Anti-Bacterial Agents ; Plant Extracts ; Succinic Acid (AB6MNQ6J6L)
    Language English
    Publishing date 2022-04-08
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules27082418
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.MO 81: Show issues

    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: Self-Healing Micro Arc Oxidation and Dicalcium Phosphate Dihydrate Double-Passivated Coating on Magnesium Membrane for Enhanced Bone Integration Repair.

    Wu, Jin / Shen, Yue / Wang, Ping / Guo, Zixiang / Bai, Jing / Wang, Xianli / Chen, Dongfang / Lin, Xuyang / Tang, Chunbo

    ACS biomaterials science & engineering

    2024  Volume 10, Issue 2, Page(s) 1062–1076

    Abstract: Magnesium is a revolutionary biomaterial for orthopedic implants, owing to its eminent mechanical properties and biocompatibility. However, its uncontrolled degradation rate remains a severe challenge for its potential applications. In this study, we ... ...

    Abstract Magnesium is a revolutionary biomaterial for orthopedic implants, owing to its eminent mechanical properties and biocompatibility. However, its uncontrolled degradation rate remains a severe challenge for its potential applications. In this study, we developed a self-healing micro arc oxidation (MAO) and dicalcium phosphate dihydrate (DCPD) double-passivated coating on a magnesium membrane (Mg-MAO/DCPD) and investigated its potential for bone-defect healing. The Mg-MAO/DCPD membrane possessed a feasible self-repairing ability and good cytocompatibility. In vitro degradation experiments showed that the Mg contents on the coating surface were 0.3, 3.8, 4.1, 6.1, and 7.9% when the degradation times were 0, 1, 2, 3, and 4 weeks, respectively, exhibiting available corrosion resistance. The slow and sustained release of Mg
    MeSH term(s) Rats ; Humans ; Animals ; Magnesium/pharmacology ; Coated Materials, Biocompatible/pharmacology ; Osteogenesis ; Phosphatidylinositol 3-Kinases ; Calcium Phosphates
    Chemical Substances calcium phosphate, dibasic, dihydrate (O7TSZ97GEP) ; Magnesium (I38ZP9992A) ; Coated Materials, Biocompatible ; Phosphatidylinositol 3-Kinases (EC 2.7.1.-) ; Calcium Phosphates
    Language English
    Publishing date 2024-01-21
    Publishing country United States
    Document type Journal Article
    ISSN 2373-9878
    ISSN (online) 2373-9878
    DOI 10.1021/acsbiomaterials.3c01565
    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.

  8. Article ; Online: Government’s Responsibility for Control of Agricultural Environmental Pollution in China

    CHEN, Dongfang

    2016  

    Abstract: In this paper, the current situation of agricultural environmental pollution caused by the increase of chemicals input in agriculture in China were analyzed, and it is found that agricultural pollution is related to agricultural industrial policies, ... ...

    Abstract In this paper, the current situation of agricultural environmental pollution caused by the increase of chemicals input in agriculture in China were analyzed, and it is found that agricultural pollution is related to agricultural industrial policies, urban-rural economic structure, funds input in pollution control, comprehensive environmental management, laws of pollution control, and so forth. To control agricultural pollution effectively, it is needed to implement integration of agricultural and environmental policies, establish environmentally friendly agricultural technology popularizing system, implement integrated planning and management of a basin, and set up and improve legislation to protect agricultural environment.
    Keywords China ; Agricultural environmental pollution ; Government’s Responsibility ; Agribusiness
    Language English
    Publishing country us
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    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.

  9. Article ; Online: On the Government Function Orientation in China's Agricultural Management Reform

    CHEN, Dongfang

    2016  

    Abstract: Since the reform and opening up, China's market-oriented agricultural management reform has achieved remarkable results, but the reform has not yet been put in place, and there are some flaws in some areas of reform. To deepen the reform of government's ... ...

    Abstract Since the reform and opening up, China's market-oriented agricultural management reform has achieved remarkable results, but the reform has not yet been put in place, and there are some flaws in some areas of reform. To deepen the reform of government's agricultural management reform under the new situation, it is necessary to further define the boundary between government and market on the basis of following the general rules of world's agricultural development and considering China's special situation of agriculture, nail down the scope of government functions, pinpoint the key areas of reform, and actively promote the rapid development of China's characteristic modern agriculture.
    Keywords China ; Agricultural management reform ; Government function orientation ; Agribusiness
    Language English
    Publishing country us
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    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.

  10. Article ; Online: A Study on the Reform of China's Agricultural Administration System

    CHEN, Dongfang

    2016  

    Abstract: After various reforms, China's agricultural administration system has been changing functions and improving structure, and it has basically met the requirements of agricultural and rural economic development, but in some areas, it can not be adapted to ... ...

    Abstract After various reforms, China's agricultural administration system has been changing functions and improving structure, and it has basically met the requirements of agricultural and rural economic development, but in some areas, it can not be adapted to modern agricultural development. Based on the analysis of the necessity of improving agricultural administration system and the problems in current agricultural administration system, this paper comes up with the viable path choice of China's agricultural administration system reform.
    Keywords China ; Agricultural administration ; System reform ; Agribusiness
    Language English
    Publishing country us
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    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.

To top