LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 105

Search options

  1. Article ; Online: Identifying of Pure and Defected Ti

    Zhang, Fengxiang / Song, Ziyue / Hu, Wei / Zhang, Yujin

    Chemistry, an Asian journal

    2022  Volume 17, Issue 15, Page(s) e202200416

    Abstract: Employing first principles calculations, we systematically investigated the geometrical and electronic structures of pure, titanium defected ( ... ...

    Abstract Employing first principles calculations, we systematically investigated the geometrical and electronic structures of pure, titanium defected (D
    Language English
    Publishing date 2022-06-10
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2233006-9
    ISSN 1861-471X ; 1861-4728
    ISSN (online) 1861-471X
    ISSN 1861-4728
    DOI 10.1002/asia.202200416
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article: Ginsenosides, potential TMPRSS2 inhibitors, a trade-off between the therapeutic combination for anti-PD-1 immunotherapy and the treatment of COVID-19 infection of LUAD patients.

    Meng, Mei / Gao, Rui / Liu, Zixue / Liu, Fengxiang / Du, Shiyu / Song, Yizhi / He, Jian

    Frontiers in pharmacology

    2023  Volume 14, Page(s) 1085509

    Abstract: Background: ...

    Abstract Background:
    Language English
    Publishing date 2023-03-13
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2587355-6
    ISSN 1663-9812
    ISSN 1663-9812
    DOI 10.3389/fphar.2023.1085509
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Improved ion adsorption capacities and diffusion dynamics in surface anchored MoS

    Song, Zifeng / Liu, Haoliang / Chen, Baiyi / Jiang, Qin / Sui, Fengxiang / Wu, Kai / Cheng, Yonghong / Xiao, Bing

    Physical chemistry chemical physics : PCCP

    2024  Volume 26, Issue 2, Page(s) 1406–1427

    Abstract: First-principles calculations were performed to analyze the atomic structures and electrochemical energy storage properties of novel ... ...

    Abstract First-principles calculations were performed to analyze the atomic structures and electrochemical energy storage properties of novel MoS
    Language English
    Publishing date 2024-01-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 1476244-4
    ISSN 1463-9084 ; 1463-9076
    ISSN (online) 1463-9084
    ISSN 1463-9076
    DOI 10.1039/d3cp05035a
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Subchorionic hematomas in early pregnancies.

    Yao, FengXiang / Song, XueJing / Ding, HuiQing / You, YuTing / Yang, Min

    Taiwanese journal of obstetrics & gynecology

    2022  Volume 61, Issue 6, Page(s) 1097

    MeSH term(s) Pregnancy ; Female ; Humans ; Pregnancy Complications ; Hematoma/diagnostic imaging ; Hematoma/etiology
    Language English
    Publishing date 2022-11-25
    Publishing country China (Republic : 1949- )
    Document type Letter
    ZDB-ID 2202946-1
    ISSN 1875-6263 ; 1875-6263
    ISSN (online) 1875-6263
    ISSN 1875-6263
    DOI 10.1016/j.tjog.2022.08.013
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Rational Lithium Salt Molecule Tuning for Fast Charging/Discharging Lithium Metal Battery.

    Zhou, Pan / Zhou, Haiyu / Xia, Yingchun / Feng, Qingqing / Kong, Xian / Hou, Wen-Hui / Ou, Yu / Song, Xuan / Zhou, Hang-Yu / Zhang, Weili / Lu, Yang / Liu, Fengxiang / Cao, Qingbin / Liu, Hao / Yan, Shuaishuai / Liu, Kai

    Angewandte Chemie (International ed. in English)

    2024  Volume 63, Issue 19, Page(s) e202316717

    Abstract: The electrolytes for lithium metal batteries (LMBs) are plagued by a low ... ...

    Abstract The electrolytes for lithium metal batteries (LMBs) are plagued by a low Li
    Language English
    Publishing date 2024-04-03
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2011836-3
    ISSN 1521-3773 ; 1433-7851
    ISSN (online) 1521-3773
    ISSN 1433-7851
    DOI 10.1002/anie.202316717
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Establishment and application of cricothyrotomy in vivo.

    Song, Fengxiang / Han, Cailing / Liu, Bin / Qiu, Yuxue / Hou, Haitao / Yan, Xiaoqiong / Deng, Liqin

    BMC medical education

    2023  Volume 23, Issue 1, Page(s) 552

    Abstract: Background: Cricothyrotomy is a procedure performed to establish an airway in critical airway events. It is performed only rarely and anesthesiologists are often unprepared when called upon to perform it. This study aimed to simulate cricothyrotomy ... ...

    Abstract Background: Cricothyrotomy is a procedure performed to establish an airway in critical airway events. It is performed only rarely and anesthesiologists are often unprepared when called upon to perform it. This study aimed to simulate cricothyrotomy using pig larynx and trachea models to help anesthesiologists master cricothyrotomy and improve the ability to establish cricothyrotomy quickly.
    Methods: The porcine larynx and trachea were dissected and covered with pigskin to simulate the structure of the anterior neck of a human patient. An animal model of cricothyrotomy was established. Forty anesthesiologists were randomly divided into four groups. Each physician performed three rounds of cricothyrotomy, and recorded the time to accomplish each successful operation. After training the cricothyrotomy procedure, a questionnaire survey was conducted for the participating residents using a Likert scale. The participants were asked to score the utility of the training course on a scale of 1 ((minimum) to 5 ((maximum).
    Results: Through repeated practice, compared with the time spent in the first round of the operation (67 ± 29 s), the time spent in the second round of the operation (47 ± 21 s) and the time spent in the third round of the operation (36 ± 11 s) were significantly shortened (P < 0.05). Results of the survey after training were quite satisfied, reflecting increased the ability of proficiency in locating the cricothyroid membrane and performing a surgical cricothyrotomy.
    Conclusion: The porcine larynx and trachea model is an excellent animal model for simulating and practicing cricothyrotomy, helping anesthesiologists to master cricothyrotomy and to perform it proficiently when required.
    MeSH term(s) Animals ; Humans ; Swine ; Trachea/surgery ; Airway Management/methods
    Language English
    Publishing date 2023-08-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 2044473-4
    ISSN 1472-6920 ; 1472-6920
    ISSN (online) 1472-6920
    ISSN 1472-6920
    DOI 10.1186/s12909-023-04558-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Application of Wheat Straw Compost Mixed with Chemical Fertilizer Regulates Soil Bacterial Community Diversity in Tea (Camellia sinensis) Plantation

    Fu, Haiyan / Song, Dapeng / Wang, Kunpeng / Fang, Fengxiang / Han, Shunying / Yang, Fengshan / Ding, Shibo

    Diversity. 2023 Apr. 20, v. 15, no. 4

    2023  

    Abstract: Biofertilizers have been suggested as alternatives to synthetic fertilizers, which could reduce soil degradation brought on by excessive chemical fertilization and have an impact on the bacterial diversity and community in the soil. The diversity and ... ...

    Abstract Biofertilizers have been suggested as alternatives to synthetic fertilizers, which could reduce soil degradation brought on by excessive chemical fertilization and have an impact on the bacterial diversity and community in the soil. The diversity and community of soil bacteria in tea plantations treated with wheat straw compost have, however, received relatively little attention. In this research, a two-year field trial was run to examine the effects of applying wheat straw compost on the characteristics of the soil and the quality of the tea. We also used high-throughput sequencing to investigate the response of the soil bacterial community, and Spearman’s rank correlation was used to estimate the relationship between the soil bacterial community, soil characteristics, and tea quality. It was noticed that applying chemical fertilizer along with compost increased the fertility of the soil and the quality of the tea. Based on a two-year thorough data analysis, the T4 treatment (compost fertilizers 15,000 kg ha⁻¹ + chemical fertilizers 1050 kg ha⁻¹, chemical fertilizer reduction 30%) was determined to be the best group. The diversity and community makeup of soil bacteria were impacted by fertilization management. After the initial compost replacement, soils with compost had a greater bacterial richness than soils with inorganic fertilizers. After the second compost substitution, PCoA analysis revealed that compost fertilizer could be easily differentiated from chemical fertilizer. In 2019, Proteobacteria, Actinobacteria, Acidobacteria, Bacteroidetes, and Patescibacteria were the most prevalent bacterial phyla. In 2020, Firmicutes and Chloroflexi overtook Bacteroidetes and Patescibacteria as the two major bacterial phyla. In addition to increasing the diversity of soil bacteria and having an impact on the bacterial population, the application of wheat straw compost mixed with chemical fertilizers can also control the soil’s characteristics and the quality of the tea produced in tea plantations. So, as a fertilization way with less environmental impact, wheat straw compost fertilization can be used in tea plantations.
    Keywords Acidobacteria ; Actinobacteria ; Bacteroidetes ; Camellia sinensis ; Chloroflexi ; Firmicutes ; Proteobacteria ; biofertilizers ; composts ; environmental impact ; field experimentation ; mineral fertilizers ; soil ; soil bacteria ; soil degradation ; tea ; wheat straw
    Language English
    Dates of publication 2023-0420
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article ; Online
    ZDB-ID 2518137-3
    ISSN 1424-2818
    ISSN 1424-2818
    DOI 10.3390/d15040580
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

  8. Article ; Online: Feasibility of N

    Yang, Lei / Chen, Fengxiang / Song, Erhong / Yuan, Zhifei / Xiao, Beibei

    Chemphyschem : a European journal of chemical physics and physical chemistry

    2020  Volume 21, Issue 12, Page(s) 1235–1242

    Abstract: Developing efficient electrocatalysts for nitrogen reduction reaction (NRR) at ambient conditions is crucial for ... ...

    Abstract Developing efficient electrocatalysts for nitrogen reduction reaction (NRR) at ambient conditions is crucial for NH
    Language English
    Publishing date 2020-05-08
    Publishing country Germany
    Document type Journal Article
    ISSN 1439-7641
    ISSN (online) 1439-7641
    DOI 10.1002/cphc.202000147
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Book ; Online: Decentralized SGD and Average-direction SAM are Asymptotically Equivalent

    Zhu, Tongtian / He, Fengxiang / Chen, Kaixuan / Song, Mingli / Tao, Dacheng

    2023  

    Abstract: Decentralized stochastic gradient descent (D-SGD) allows collaborative learning on massive devices simultaneously without the control of a central server. However, existing theories claim that decentralization invariably undermines generalization. In ... ...

    Abstract Decentralized stochastic gradient descent (D-SGD) allows collaborative learning on massive devices simultaneously without the control of a central server. However, existing theories claim that decentralization invariably undermines generalization. In this paper, we challenge the conventional belief and present a completely new perspective for understanding decentralized learning. We prove that D-SGD implicitly minimizes the loss function of an average-direction Sharpness-aware minimization (SAM) algorithm under general non-convex non-$\beta$-smooth settings. This surprising asymptotic equivalence reveals an intrinsic regularization-optimization trade-off and three advantages of decentralization: (1) there exists a free uncertainty evaluation mechanism in D-SGD to improve posterior estimation; (2) D-SGD exhibits a gradient smoothing effect; and (3) the sharpness regularization effect of D-SGD does not decrease as total batch size increases, which justifies the potential generalization benefit of D-SGD over centralized SGD (C-SGD) in large-batch scenarios. The code is available at https://github.com/Raiden-Zhu/ICML-2023-DSGD-and-SAM.

    Comment: 40th International Conference on Machine Learning (ICML 2023)
    Keywords Computer Science - Machine Learning ; Computer Science - Computers and Society ; Computer Science - Distributed ; Parallel ; and Cluster Computing ; Electrical Engineering and Systems Science - Systems and Control ; Statistics - Machine Learning
    Subject code 006
    Publishing date 2023-06-05
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  10. Article ; Online: Altered metabolism in right basal ganglia associated with asymptomatic neurocognitive impairment in HIV-infected individuals

    Yi Zhan / Dan-Chao Cai / Ying Liu / Fengxiang Song / Fei Shan / Pengrui Song / Guochao Chen / Yijun Zhang / He Wang / Yuxin Shi

    Heliyon, Vol 10, Iss 1, Pp e23342- (2024)

    1481  

    Abstract: Background: Only few studies have focused on the metabolite differences between asymptomatic neurocognitive impairment (ANI) and cognitively normal people living with HIV (PLWH). The current study aims to examine whether brain metabolisms in basal ... ...

    Abstract Background: Only few studies have focused on the metabolite differences between asymptomatic neurocognitive impairment (ANI) and cognitively normal people living with HIV (PLWH). The current study aims to examine whether brain metabolisms in basal ganglia (BG) by magnetic resonance spectroscopy (MRS) were potential to discriminate ANI from cognitively normal PLWH. Methods: According to neuropsychological (NP) test, 80 PLWH (37.4 ± 10.2 years) were divided into ANI group (HIV-ANI, n = 31) and NP normal group (HIV-normal, n = 49). Brain metabolisms by MRS from right BG were compared between groups, including N-acetylaspartate and N-acetyl aspartylglutamate (tNAA), creatine and phosphocreatine (tCr), and choline-containing compounds (tCho). A total value of three metabolites were introduced. All brain metabolisms were evaluated as its percentage of total. Furthermore, correlations between MRS and NP and clinical measures were evaluated. A logistic regression model was applied, and the AUC values for the model and the continuous factors were compared using receiver operating curve (ROC) analysis. Results: Compared to HIV-normal group, tNAA/total was lower and tCr/total was higher in the HIV-ANI group (P < 0.05). Both tNAA/total and tCr/total values were correlated with NP score (P < 0.05), especially in verbal fluency, speed of information processing, learning, and recall (P < 0.05). The logistic model included BG-tCr/total, current CD4 and infection years of PLWH. The AUC value for the BG-tCr/total was 0.696 and was not significantly lower than that for logistic model (P < 0.01). Conclusion: The altered brain metabolites in the right BG were found in the ANI group compared to PLWH with normal cognition, and further associated with NP deficits. The current findings indicated that brain metabolites assessed by MRS has the potential to discriminate ANI from cognitively normal PLWH.
    Keywords Human immunodeficiency virus ; HIV-Associated neurocognitive disorder ; Asymptomatic neurocognitive impairment ; Neuropsychological test ; Single-voxel proton MR spectroscopy ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
    Subject code 310
    Language English
    Publishing date 2024-01-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

To top