LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 206

Search options

  1. Article ; Online: Orthogonality of diffractive deep neural network.

    Zheng, Shuiqin / Xu, Shixiang / Fan, Dianyuan

    Optics letters

    2022  Volume 47, Issue 7, Page(s) 1798–1801

    Abstract: Some rules of the diffractive deep neural network ( ... ...

    Abstract Some rules of the diffractive deep neural network (D
    MeSH term(s) Computer Simulation ; Neural Networks, Computer
    Language English
    Publishing date 2022-04-01
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4794
    ISSN (online) 1539-4794
    DOI 10.1364/OL.449899
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Revealing the characteristics of biofilms on different polypropylene plastic products: Comparison between disposable masks and takeaway boxes.

    Huang, Hexinyue / Shi, Yanqi / Gong, Zhimin / Wang, Jiahao / Zheng, Lezhou / Gao, Shixiang

    Journal of hazardous materials

    2023  Volume 465, Page(s) 133400

    Abstract: The increasingly severe plastic pollution issue was intensified by the enormous plastic emissions into ecosystems during the Covid-19 pandemic. Plastic wastes entering the environment were swiftly exposed to microorganisms and colonized by biofilms, and ... ...

    Abstract The increasingly severe plastic pollution issue was intensified by the enormous plastic emissions into ecosystems during the Covid-19 pandemic. Plastic wastes entering the environment were swiftly exposed to microorganisms and colonized by biofilms, and the plastic-biofilm combined effects further influenced the ecosystem. However, the non-woven structure of disposable masks discarded carelessly during the COVID-19 pandemic was different from those of plastics with flat surface. To reveal the potential effects of plastic structure on colonized biofilms, white disposable surgical masks (DM) and transparent takeaway boxes (TB), both made of polyethylene, were selected for the incubation of organic conditioning films and biofilms. The results indicated that the non-woven structure of disposable mask was destroyed by the influence of water infiltration and biofilm colonization. The influence of surface structure on conditioning films led to a relatively higher proportion of tryptophan-like substances on DM than those on TB samples. Therefore, biofilms with significantly higher microbial biomass and carbon metabolic capacity were formed on DM than those on TB samples owing to the combined effects of their differences in surface structure and conditioning films. Moreover, abundant functional microorganisms associated with stress tolerance, carbon metabolism and biofilm formation were observed in biofilms on disposable mask. Combining with the results of partial least squares regression analysis, the selective colonization of functional microorganisms on disposable masks with uneven surface longitudinal fluctuation was revealed. Although the predicted functions of biofilms on disposable masks and takeaway boxes showed more similarity to each other than to those of free-living aquatic microorganisms owing to the existence of the plastisphere, biofilms on disposable masks may potentially trigger environmental risks different from those of takeaway boxes by unique carbon metabolism and abundant biomass.
    MeSH term(s) Humans ; Polypropylenes ; Ecosystem ; Masks ; Pandemics ; Biofilms ; COVID-19 ; Carbon ; Polyethylene ; Plastics
    Chemical Substances Polypropylenes ; Carbon (7440-44-0) ; Polyethylene (9002-88-4) ; Plastics
    Language English
    Publishing date 2023-12-29
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1491302-1
    ISSN 1873-3336 ; 0304-3894
    ISSN (online) 1873-3336
    ISSN 0304-3894
    DOI 10.1016/j.jhazmat.2023.133400
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Book ; Online: Conditional Generative Modeling for High-dimensional Marked Temporal Point Processes

    Dong, Zheng / Fan, Zekai / Zhu, Shixiang

    2023  

    Abstract: Point processes offer a versatile framework for sequential event modeling. However, the computational challenges and constrained representational power of the existing point process models have impeded their potential for wider applications. This ... ...

    Abstract Point processes offer a versatile framework for sequential event modeling. However, the computational challenges and constrained representational power of the existing point process models have impeded their potential for wider applications. This limitation becomes especially pronounced when dealing with event data that is associated with multi-dimensional or high-dimensional marks such as texts or images. To address this challenge, this study proposes a novel event generative framework for modeling point processes with high-dimensional marks. We aim to capture the distribution of events without explicitly specifying the conditional intensity or probability density function. Instead, we use a conditional generator that takes the history of events as input and generates the high-quality subsequent event that is likely to occur given the prior observations. The proposed framework offers a host of benefits, including considerable representational power to capture intricate dynamics in multi- or even high-dimensional event space, as well as exceptional efficiency in learning the model and generating samples. Our numerical results demonstrate superior performance compared to other state-of-the-art baselines.
    Keywords Statistics - Machine Learning ; Computer Science - Machine Learning
    Subject code 519
    Publishing date 2023-05-21
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  4. Article ; Online: Formation of Nano- and Microplastics and Dissolved Chemicals During Photodegradation of Polyester Base Fabrics with Polyurethane Coating.

    Shi, Yanqi / Zheng, Lezhou / Huang, Hexinyue / Tian, Ye-Chao / Gong, Zhimin / Liu, Peng / Wu, Xiaowei / Li, Wen-Tao / Gao, Shixiang

    Environmental science & technology

    2023  Volume 57, Issue 5, Page(s) 1894–1906

    Abstract: Polyurethane (PU) synthetic leathers possess an intricate plastic composition, including polyester (PET) base fabrics and upper PU resin, but the release of fragments from the complexes is unclear. Therefore, we investigated the photodegradation trends ... ...

    Abstract Polyurethane (PU) synthetic leathers possess an intricate plastic composition, including polyester (PET) base fabrics and upper PU resin, but the release of fragments from the complexes is unclear. Therefore, we investigated the photodegradation trends of PET base fabrics with PU coating (PET-U) as a representative of composite plastics. Attention was paid to the comparison of the photoaging process of PET-U with that of pure PET base fabric (PET-P). To reveal the potential for chain scission, physical and chemical changes (
    MeSH term(s) Plastics/chemistry ; Microplastics ; Polyurethanes ; Polyesters ; Photolysis ; Water Pollutants, Chemical/analysis
    Chemical Substances Plastics ; Microplastics ; Polyurethanes ; Polyesters ; Water Pollutants, Chemical
    Language English
    Publishing date 2023-01-24
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1520-5851
    ISSN (online) 1520-5851
    DOI 10.1021/acs.est.2c05063
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article: Expression analysis of genes related to cold tolerance in

    Zhao, Dongfang / Zheng, Chunchun / Shi, Fengming / Xu, Yabei / Zong, Shixiang / Tao, Jing

    PeerJ

    2021  Volume 9, Page(s) e10864

    Abstract: Pine beetles are well known in North America for their widespread devastation of pine forests. However, ...

    Abstract Pine beetles are well known in North America for their widespread devastation of pine forests. However,
    Language English
    Publishing date 2021-03-09
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2703241-3
    ISSN 2167-8359
    ISSN 2167-8359
    DOI 10.7717/peerj.10864
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Electric-Field-Assisted Alkaline Hydrolysis of Metal-Organic Framework Bulk into Highly Porous Hydroxide for Energy Storage and Electrocatalysis.

    Ding, Shixiang / Feng, Yi / Yue, Xiaoqiu / Zheng, Qiaoji / Hu, Qiang / Lin, Dunmin

    Inorganic chemistry

    2022  Volume 61, Issue 12, Page(s) 4948–4956

    Abstract: Metal-organic frameworks (MOFs) have attracted tremendous attention in the field of supercapacitors and electrocatalysis due to their open metal sites and high surface area. However, their inherent instability and poor electrical conductivity lead to ... ...

    Abstract Metal-organic frameworks (MOFs) have attracted tremendous attention in the field of supercapacitors and electrocatalysis due to their open metal sites and high surface area. However, their inherent instability and poor electrical conductivity lead to limited electrochemical performance. Herein, we have employed a new and simple strategy for converting MOF bulk into porous Zn-Co hydroxide composites with the assistance of electric fields with different cycles. This method can alter the migration behavior of charged molecules/ions and improve the nucleation rate of hydroxide, thus adjusting the morphology of derivatives. As a supercapacitor electrode, the optimal material of Zn
    Language English
    Publishing date 2022-03-11
    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.1c03694
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Transfer hydrogenation of CO

    Deng, Lidan / Liu, Xiaowei / Xu, Jie / Zhou, Zijian / Feng, Shixiang / Wang, Zheng / Xu, Minghou

    Chemical communications (Cambridge, England)

    2021  Volume 57, Issue 42, Page(s) 5167–5170

    Abstract: Aqueous glycerol was used in this study as a liquid-phase hydrogen source for the hydrogenation of ... ...

    Abstract Aqueous glycerol was used in this study as a liquid-phase hydrogen source for the hydrogenation of CO
    Language English
    Publishing date 2021-04-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/d1cc01299a
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Releases of microplastics and chemicals from nonwoven polyester fabric-based polyurethane synthetic leather by photoaging.

    Shi, Yanqi / Huang, Hexinyue / Zheng, Lezhou / Tian, Yechao / Gong, Zhimin / Wang, Jiahao / Li, Wentao / Gao, Shixiang

    The Science of the total environment

    2023  Volume 902, Page(s) 166584

    Abstract: The nonwoven PET fabrics are chemically, mechanically and thermally treated fiber aggregate without weaving, knitting or braiding, which could be used as a base to make polyurethane (PU) synthetic leather through a series of processing. Our research ... ...

    Abstract The nonwoven PET fabrics are chemically, mechanically and thermally treated fiber aggregate without weaving, knitting or braiding, which could be used as a base to make polyurethane (PU) synthetic leather through a series of processing. Our research systematically compared the photoaging behaviors of pure non-woven PET base fabric (NPET-P) and PU synthetic leather (nonwoven PET-base fabrics with PU coating, NPET-U), and their possibilities for microplastic fibers (MPFs) generation and chemical transformation in water. NPET-U was photoaged to a higher oxidation degree with higher O/C ratios and more distinct changes in chemical structures. The amount of MPFs released from NPET-U (1.98 × 10
    Language English
    Publishing date 2023-08-25
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2023.166584
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article: Reference Gene Selection for Expression Analyses by qRT-PCR in

    Zheng, Chunchun / Zhao, Dongfang / Xu, Yabei / Shi, Fengming / Zong, Shixiang / Tao, Jing

    Insects

    2020  Volume 11, Issue 6

    Abstract: Dendroctonus ... ...

    Abstract Dendroctonus valens
    Language English
    Publishing date 2020-05-27
    Publishing country Switzerland
    Document type Journal Article
    ISSN 2075-4450
    ISSN 2075-4450
    DOI 10.3390/insects11060328
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article: Corrigendum: The m6A methyltransferase METTL16 inhibits the proliferation of pancreatic adenocarcinoma cancer cells via the p21 signaling pathway.

    Xie, Fuming / Zheng, Yao / Fu, Wen / Chi, Bojing / Wang, Xianxing / Zhang, Junfeng / Gu, Jianyou / Yin, Jingyang / Zhou, Qiang / Guo, Shixiang / Cai, Lei / Yang, Jiali / Liu, Songsong / Wang, Huaizhi

    Frontiers in oncology

    2023  Volume 13, Page(s) 1218781

    Abstract: This corrects the article DOI: 10.3389/fonc.2023.1138238.]. ...

    Abstract [This corrects the article DOI: 10.3389/fonc.2023.1138238.].
    Language English
    Publishing date 2023-05-19
    Publishing country Switzerland
    Document type Published Erratum
    ZDB-ID 2649216-7
    ISSN 2234-943X
    ISSN 2234-943X
    DOI 10.3389/fonc.2023.1218781
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top