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  1. Article ; Online: Effects of endoscopic surgery via different approaches on neurological function and complications in patients with hypertensive cerebral hemorrhage

    Jun Li

    Journal of Hainan Medical University, Vol 26, Iss 3, Pp 48-

    2020  Volume 53

    Abstract: Objective: To study the effects of different approaches of neuroendoscopic treatment on neurological function and complications of patients with hypertensive cerebral hemorrhage. Methods: 72 patients with hypertensive cerebral hemorrhage diagnosed and ... ...

    Abstract Objective: To study the effects of different approaches of neuroendoscopic treatment on neurological function and complications of patients with hypertensive cerebral hemorrhage. Methods: 72 patients with hypertensive cerebral hemorrhage diagnosed and treated in our hospital were selected as research objects. They were divided into the study group (n = 37) and the control group (n = 35) according to different approaches. The study group was the lateral fissure approach, and the control group was the anterior coronary suture approach. The curative effect, hematoma clearance, postoperative wake time, postoperative cerebral edema, daily living ability, neurological function, and complications in the two groups were observed. Results: The efficacy of the study group was higher than that of the control group, and the differences were statistically significant (P <0.05). The postoperative cerebral edema, postoperative wake time, and postoperative intracranial pressure in the study group were lower than those in the control group, and the hematoma clearance rate in the study group was higher than that in the control group, the differences were statistically significant (P <0.05); At 3 and 6 months after treatment, the daily living ability of the study group was higher than that of the control group, and neurological dysfunction of the study group was lower than that of the control group (P <0.05); The complication rate of the study group was lower than that of the control group (P <0.05); There was no significant difference in mortality rate between the two groups (P> 0.05). Conclusion: Different approaches have different effects on patients with hypertensive intracerebral hemorrhage. Compared with the anterior coronary suture approach, the lateral fissure approach has less damage to nerve function, and has less postoperative complications.
    Keywords different approaches ; neuroendoscopy ; hypertensive cerebral hemorrhage ; neurological function ; complications ; Medicine ; R
    Subject code 796 ; 610
    Language English
    Publishing date 2020-02-01T00:00:00Z
    Publisher Editorial Board of Journal of Hainan Medical University
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Demetallation of organometallic and metal-mediated reactions

    Chao-Jun Li

    The Innovation, Vol 3, Iss 4, Pp 100262- (2022)

    2022  

    Abstract: The use of stoichiometric organometallic reagents and stoichiometric metals formed the basis of vast majority of classical reactions for constructing carbon–carbon bonds. The indispensable requirement of stoichiometric metals for such reactions ... ...

    Abstract The use of stoichiometric organometallic reagents and stoichiometric metals formed the basis of vast majority of classical reactions for constructing carbon–carbon bonds. The indispensable requirement of stoichiometric metals for such reactions constitutes significant challenges in terms of resource sustainability, operational safety, and chemical-waste management. The recent developments in C–H functionalizations, hydrogenative alkene/alkyne addition to electrophiles, the hydrazone umpolung chemistry, and other emerging fields such as the electrosynthesis and photoredox chemistry provide potential solutions to overcome these inherent challenges.
    Keywords organometallic reactions ; C–C bond formations ; C–H functionalization ; sustainable chemical synthesis ; umpolung hydrazones ; Science (General) ; Q1-390
    Language English
    Publishing date 2022-07-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Mild and Efficient One-Step Synthesis of Nitrogen-Doped Multistage Porous Carbon for High-Performance Supercapacitors

    Tianliang Zhang / Jun Li

    Molecules, Vol 28, Iss 24, p

    2023  Volume 8136

    Abstract: Biomass-derived carbon materials have broad application prospects in energy storage, but still face problems such as complex synthesis paths and the massive use of corrosive activators. In this study, we proposed a mild and efficient pathway to prepare ... ...

    Abstract Biomass-derived carbon materials have broad application prospects in energy storage, but still face problems such as complex synthesis paths and the massive use of corrosive activators. In this study, we proposed a mild and efficient pathway to prepare nitrogen-doped porous carbon material (N-YAC) using one-step pyrolysis with solid K 2 CO 3 , tobacco straw, and melamine. The optimized material (N-YAC 0.5 ) was not only enriched with nitrogen, but also exhibited a high specific surface area (2367 m 2 /g) and a reasonable pore size distribution (46.49% mesopores). When utilized in electrodes, N-YAC 0.5 exhibited an excellent capacitance performance (338 F/g at 1 A/g) in the three-electrode system, and benefitted from a high mesopore distribution that maintained a capacitance of 85.2% (288 F/g) at high current densities (20 A/g). Furthermore, the composed symmetric capacitor achieved an energy density of 14.78 Wh/kg at a power density of 400 W/kg. In summary, our work provides a novel and eco-friendly approach for converting biomass into high-performance energy-storage materials.
    Keywords nitrogen-doped ; porous carbon ; solid K 2 CO 3 ; supercapacitors ; Organic chemistry ; QD241-441
    Subject code 620
    Language English
    Publishing date 2023-12-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Precarious work and labor market segmentation

    Jun Li

    The Journal of Chinese Sociology, Vol 6, Iss 1, Pp 1-

    a comparative study on mainland China and Hong Kong

    2019  Volume 22

    Abstract: Abstract The world-wide growth of precarious work has created a new type of labor market segmentation and calls for cross-society comparison study. Mainland China and Hong Kong facilitate such a comparison, since the two societies operated in quite ... ...

    Abstract Abstract The world-wide growth of precarious work has created a new type of labor market segmentation and calls for cross-society comparison study. Mainland China and Hong Kong facilitate such a comparison, since the two societies operated in quite different socioeconomic institutions have experienced the same change of employment relations. By analyzing two representative and comparable survey data, this research has found similarity as well as discrepancy regarding occurrence and segmentation of precarious work in the two labor markets. In general, precarious work distributes in more economic sectors in mainland China than it does in Hong Kong, while it engenders less segmentation in the former labor market. This is closely related to the institutional and practical differences in labor market regulation of the two societies.
    Keywords Precarious work ; Labor market segmentation ; Mainland China ; Hong Kong ; Social Sciences ; H ; Social sciences and state - Asia (Asian studies only) ; H53 ; Sociology (General) ; HM401-1281
    Subject code 950
    Language English
    Publishing date 2019-08-01T00:00:00Z
    Publisher SpringerOpen
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Correction to

    Jun Li

    The Journal of Chinese Sociology, Vol 6, Iss 1, Pp 1-

    Precarious work and labor market segmentation: a comparative study on mainland China and Hong Kong

    2019  Volume 1

    Abstract: In the original publication of this article (Li 2019), there is an error in the last paragraph of the “Precarious work and labor market segmentation” section. ...

    Abstract In the original publication of this article (Li 2019), there is an error in the last paragraph of the “Precarious work and labor market segmentation” section.
    Keywords Social Sciences ; H ; Social sciences and state - Asia (Asian studies only) ; H53 ; Sociology (General) ; HM401-1281
    Language English
    Publishing date 2019-10-01T00:00:00Z
    Publisher SpringerOpen
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Resource utilization of agricultural solid waste

    Zhao-jun LI

    Journal of Integrative Agriculture, Vol 20, Iss 5, Pp 1119-

    2021  Volume 1120

    Keywords Agriculture (General) ; S1-972
    Language English
    Publishing date 2021-05-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Microplastics in waste management systems: A review of analytical methods, challenges and prospects.

    Rafiq, Adeel / Xu, Jun-Li

    Waste management (New York, N.Y.)

    2023  Volume 171, Page(s) 54–70

    Abstract: Numerous studies have reported the presence of microplastics (MPs) in waste collection and disposal systems. However, current scientific studies on measuring MP occurrence in a waste management context are not comparable due to a lack of standardized ... ...

    Abstract Numerous studies have reported the presence of microplastics (MPs) in waste collection and disposal systems. However, current scientific studies on measuring MP occurrence in a waste management context are not comparable due to a lack of standardized methodologies. Consequently, the impact of MPs on ecosystems and human health remains largely unclear. To address the inconsistencies, present in published studies, this review thoroughly examines sample preparation techniques for transfer stations, landfill leachate, recycling, compost, and incineration ash samples. Furthermore, various analytical approaches such as flotation, filtration, and organic matter digestion, as well as morphological categorization, identification, and quantification, are subsequently rigorously assessed. The benefits and limitations of each methodology are evaluated to facilitate the development of accurate and effective methods for detecting and characterizing nanoplastics. Recent research suggests that plastic recycling and composting facilities are the primary environmental sources of microplastic pollution among different waste treatment methods. The most prevalent microplastic types discovered in waste management were polyethylene (PE) and polypropylene (PP), with fragment and fiber being the most frequently reported morphologies. The review highlights a number of tactics that could be integrated into the methodology development for detecting microplastics in waste management systems (WMS), ultimately leading to better consistency and reliability of data across different studies. In essence, this will advance our comprehension of potential risks associated with microplastics.
    Language English
    Publishing date 2023-08-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2001471-5
    ISSN 1879-2456 ; 0956-053X
    ISSN (online) 1879-2456
    ISSN 0956-053X
    DOI 10.1016/j.wasman.2023.08.015
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Cor Triatriatum Sinistrum.

    Tham, Jun-Li / Puppala, Sapna

    Radiology

    2023  Volume 308, Issue 3, Page(s) e231246

    MeSH term(s) Humans ; Cor Triatriatum/diagnostic imaging
    Language English
    Publishing date 2023-09-26
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 80324-8
    ISSN 1527-1315 ; 0033-8419
    ISSN (online) 1527-1315
    ISSN 0033-8419
    DOI 10.1148/radiol.231246
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Preparation and immune in chickens of pulsatile delivery system for inactivated Newcastle disease vaccine

    Jun Li

    Asian Pacific Journal of Tropical Medicine, Vol 11, Iss 13, Pp 27-

    2018  Volume 27

    Abstract: Due to the weak immunogenicity, traditional inactivated vaccines need to use adjuvants and multiple doses to generate effective immune protection. Therefore, in theory and practice, it is valuable to develop a vaccine delivery system with an adjuvant ... ...

    Abstract Due to the weak immunogenicity, traditional inactivated vaccines need to use adjuvants and multiple doses to generate effective immune protection. Therefore, in theory and practice, it is valuable to develop a vaccine delivery system with an adjuvant effect, which can be carried out in a single dose. In view of this, inactivated Newcastle disease virus (NDV)-loaded poly (lactic-co-glycolic acid) (PLGA) microspheres with different release characteristics were prepared. Two release peaks of four groups of microspheres were observed during in vitro release test. The first release peak came out on the first day. The second release peak of A microspheres appeared at the 7th week. The second release peak of B microspheres appeared at the 5th week. The second release peaks of C and D microspheres all appeared at the 11th week. The release of C microspheres contrast to D microspheres was more smooth at release peak, so A, B, C microspheres were selected to construct the pulsatile system. Thus inactivated Newcastle disease(ND) vaccine pulsatile release systems using an appropriate combination of vaccine microspheres with a suitable release characteristics was constituted . Then their immune effects on chickens were evaluated. Chickens without maternal antibodies against NDV were grouped randomly and then immunized with NDV-PLGA microsphere vaccine and inactivated ND vaccine respectively. The results show that inactivated NDV-PLGA microsphere vaccine had the effect of pulsatile release in chickens and were able to maintain high and constant antibody level. And the pulsatile release system composed of mixed microspheres had the best immune effect. This study demonstrated that inactivated NDV-PLGA microsphere pulsatile release system with reasonable release interval could realize effective immune protection in a long time by a single injection. This was the first ever report on PLGA microspheres-based pulsatile release system for inactivated NDV vaccine.
    Keywords Newcastle disease vaccine ; PLGA microspheres ; Pulsatile release system ; Immune effect ; Arctic medicine. Tropical medicine ; RC955-962
    Subject code 630
    Language English
    Publishing date 2018-01-01T00:00:00Z
    Publisher Wolters Kluwer Medknow Publications
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Assessing the inconsistency of microplastic measurements in foods and beverages.

    Canga, Emine Merve / Gowen, Aoife / Xu, Jun-Li

    Comprehensive reviews in food science and food safety

    2024  Volume 23, Issue 2, Page(s) e13315

    Abstract: The widespread occurrence of microplastics (MPs) in the food chain has gained substantial recognition as a pressing concern, highlighting the inevitability of human exposure through ingestion of foodborne MPs, coupled with the release of MPs from plastic ...

    Abstract The widespread occurrence of microplastics (MPs) in the food chain has gained substantial recognition as a pressing concern, highlighting the inevitability of human exposure through ingestion of foodborne MPs, coupled with the release of MPs from plastic packaging. However, there are notable disparities in the reported numbers of MPs in foods and beverages, warranting a thorough investigation into the factors contributing to these discrepancies. Table salt is one of the major sources of MPs, and there was an approximately hundred-fold difference between the reviewed studies that reported the highest and lowest number of MPs. In addition, more noticeable discrepancies were discovered between studies on MPs released from teabags. One study reported that approximately 15 billion MPs were released into a cup of tea from a single teabag, whereas another research paper found only approximately 106.3 ± 14.6 MP/teabag after brewing. This comprehensive review focuses on the inconsistencies observed across studies examining MPs, shedding light on the plausible factors underlying these variations. Furthermore, the review outlines areas in analytical procedures that require enhancement and offers recommendations to promote accuracy and standardization in future research efforts, such as employing analytical methods capable of confirming the presence of MPs, using appropriate filter sizes, considering representative sample sizes when extrapolation is involved, and so on. By pinpointing the detection processes leading to the inconsistent results observed in MP studies, this comparative analysis will contribute to the development of reliable analytic methods for understanding the extent of microplastic contamination in the human food chain.
    MeSH term(s) Humans ; Microplastics ; Plastics ; Food ; Beverages ; Sodium Chloride, Dietary
    Chemical Substances Microplastics ; Plastics ; Sodium Chloride, Dietary
    Language English
    Publishing date 2024-02-29
    Publishing country United States
    Document type Review ; Journal Article
    ZDB-ID 2185829-9
    ISSN 1541-4337 ; 1541-4337
    ISSN (online) 1541-4337
    ISSN 1541-4337
    DOI 10.1111/1541-4337.13315
    Database MEDical Literature Analysis and Retrieval System OnLINE

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