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  1. Article: Multi-layered e-feedback anxiety: An action research study among Chinese learners using peer feedback activities in an academic writing course.

    Xue, Sijia / Yang, Yanchao / Du, Jianxia / Liu, Fangtong

    Frontiers in psychology

    2023  Volume 14, Page(s) 1062517

    Abstract: There is a gradual increase in the use of e-feedback in higher education, but issues regarding learners' anxiety remain unresolved. In light of the learners' anxiety, e-feedback would essentially become a formality if they are not proactive in providing ... ...

    Abstract There is a gradual increase in the use of e-feedback in higher education, but issues regarding learners' anxiety remain unresolved. In light of the learners' anxiety, e-feedback would essentially become a formality if they are not proactive in providing constructive feedback. This action research examines three cycles of e-feedback activities performed by 12 doctoral students in an academic writing course in a public university in Macau, China. Specifically, the e-feedback activity involved a comprehensive use of various new educational technology tools, namely Moodle, WeChat and Rain Classroom. This study reveals that the causes of students' anxiety when using e-feedback are multi-layered, mainly from the use of smartphones as a communication medium for conducting formal learning activities and the lack of interpersonal and English skills for conveying their thoughts when providing e-feedback. The traditional Chinese culture about the importance of "face" and interpersonal harmony also has impacts on learners' e-feedback delivery. These findings shed new lights on pedagogical practice in higher education.
    Language English
    Publishing date 2023-03-02
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2563826-9
    ISSN 1664-1078
    ISSN 1664-1078
    DOI 10.3389/fpsyg.2023.1062517
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Effects of goal orientation on environment management in technology-based physics learning.

    Yang, Yanchao / Du, Jianxia / Teo, Timothy / Xue, Sijia / Lui, Fangtong

    Frontiers in psychology

    2023  Volume 13, Page(s) 1048143

    Abstract: The purpose of the current study is to propose and examine a comprehensive model that uses motivational and self-regulated variables to explain factors affecting environment management in technology-based physics learning among Chinese secondary school ... ...

    Abstract The purpose of the current study is to propose and examine a comprehensive model that uses motivational and self-regulated variables to explain factors affecting environment management in technology-based physics learning among Chinese secondary school students. Data were collected from 726 grade-eight secondary school students in Southeast China, who were learning physics. Structural equation modeling was used to analyze the relationships among students' goal orientations, environment management, and time management. Results suggest that students were more likely to manage their environment if they had learning-oriented goals and if they managed their time, but they were less likely to do so if they had social-oriented goals. Implications for teachers' technology integration in physics class were discussed.
    Language English
    Publishing date 2023-01-09
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2563826-9
    ISSN 1664-1078
    ISSN 1664-1078
    DOI 10.3389/fpsyg.2022.1048143
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Multi-pathways-mediated mechanisms of selenite reduction and elemental selenium nanoparticles biogenesis in the yeast-like fungus Aureobasidium melanogenum I15.

    Xue, Si-Jia / Zhang, Xin-Tong / Li, Xiao-Chen / Zhao, Fang-Yuan / Shu, Xian / Jiang, Wen-Wen / Zhang, Jin-Yong

    Journal of hazardous materials

    2024  Volume 470, Page(s) 134204

    Abstract: Selenium (Se) plays a critical role in diverse biological processes and is widely used across manufacturing industries. However, the contamination of Se oxyanions also poses a major public health concern. Microbial transformation is a promising approach ... ...

    Abstract Selenium (Se) plays a critical role in diverse biological processes and is widely used across manufacturing industries. However, the contamination of Se oxyanions also poses a major public health concern. Microbial transformation is a promising approach to detoxify Se oxyanions and produce elemental selenium nanoparticles (SeNPs) with versatile industrial potential. Yeast-like fungi are an important group of environmental microorganisms, but their mechanisms for Se oxyanions reduction remain unknown. In this study, we found that Aureobasidium melanogenum I15 can reduce 1.0 mM selenite by over 90% within 48 h and efficiently form intracellular or extracellular spherical SeNPs. Metabolomic and proteomic analyses disclosed that A. melanogenum I15 evolves a complicated selenite reduction mechanism involving multiple metabolic pathways, including the glutathione/glutathione reductase pathway, the thioredoxin/thioredoxin reductase pathway, the siderophore-mediated pathway, and multiple oxidoreductase-mediated pathways. This study provides the first report on the mechanism of selenite reduction and SeNPs biogenesis in yeast-like fungi and paves an alternative avenue for the bioremediation of selenite contamination and the production of functional organic selenium compounds.
    MeSH term(s) Selenious Acid/metabolism ; Selenium/metabolism ; Ascomycota/metabolism ; Oxidation-Reduction ; Nanoparticles/chemistry ; Nanoparticles/metabolism ; Metal Nanoparticles/chemistry ; Biodegradation, Environmental ; Fungal Proteins/metabolism ; Proteomics
    Chemical Substances Selenious Acid (F6A27P4Q4R) ; Selenium (H6241UJ22B) ; Fungal Proteins
    Language English
    Publishing date 2024-04-03
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1491302-1
    ISSN 1873-3336 ; 0304-3894
    ISSN (online) 1873-3336
    ISSN 0304-3894
    DOI 10.1016/j.jhazmat.2024.134204
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Morphological characterization and genetic diversity of a new microsporidium,

    Weng, Meiqi / Zhang, Xintong / Xin, Zhaozhe / Xue, Sijia / Zhang, Qianqian / Li, Aihua / Zhang, Jinyong

    Frontiers in cellular and infection microbiology

    2023  Volume 13, Page(s) 1125394

    Abstract: We reported a new ... ...

    Abstract We reported a new microsporidium
    MeSH term(s) Animals ; Microsporidia, Unclassified/genetics ; Phylogeny ; Microsporidia/genetics ; DNA, Ribosomal/genetics ; Crustacea/genetics ; Adipose Tissue ; Genetic Variation
    Chemical Substances DNA, Ribosomal
    Language English
    Publishing date 2023-01-27
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2619676-1
    ISSN 2235-2988 ; 2235-2988
    ISSN (online) 2235-2988
    ISSN 2235-2988
    DOI 10.3389/fcimb.2023.1125394
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Intraspecific genetic diversity of the fish-infecting microsporidian parasite

    Weng, Meiqi / Zhang, Xintong / Xin, Zhaozhe / Xue, Sijia / Zhang, Qianqian / Li, Aihua / Zhang, Jinyong

    Frontiers in microbiology

    2023  Volume 14, Page(s) 1129136

    Abstract: Pseudokabatana ... ...

    Abstract Pseudokabatana alburnus
    Language English
    Publishing date 2023-03-09
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2587354-4
    ISSN 1664-302X
    ISSN 1664-302X
    DOI 10.3389/fmicb.2023.1129136
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: First Natural Yeast Strain

    Xue, Si-Jia / Liu, Jie / Li, Xiao-Chen / Zhang, Xin-Tong / Xin, Zhao-Zhe / Jiang, Wen-Wen / Zhang, Jin-Yong

    Journal of agricultural and food chemistry

    2023  

    Abstract: Flavonoids are generally thought to be essential plant natural products with diverse bioactivities and pharmacological effects. Conventional approaches for the industrial production of flavonoids through plant extraction and chemical synthesis face ... ...

    Abstract Flavonoids are generally thought to be essential plant natural products with diverse bioactivities and pharmacological effects. Conventional approaches for the industrial production of flavonoids through plant extraction and chemical synthesis face serious economic and environmental challenges. Searching for natural robust flavonoid-producing microorganisms satisfying green and sustainable development is one of the good alternatives. Here, a natural yeast,
    Language English
    Publishing date 2023-11-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 241619-0
    ISSN 1520-5118 ; 0021-8561
    ISSN (online) 1520-5118
    ISSN 0021-8561
    DOI 10.1021/acs.jafc.3c05188
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Genetic evidences for the core biosynthesis pathway, regulation, transport and secretion of liamocins in yeast-like fungal cells.

    Xue, Si-Jia / Liu, Guang-Lei / Chi, Zhe / Gao, Zhi-Chao / Hu, Zhong / Chi, Zhen-Ming

    The Biochemical journal

    2020  Volume 477, Issue 5, Page(s) 887–903

    Abstract: So far, it has been still unknown how liamocins are biosynthesized, regulated, transported and secreted. In this study, a highly reducing polyketide synthase (HR-PKS), a mannitol-1-phosphate dehydrogenase (MPDH), a mannitol dehydrogenase (MtDH), an ... ...

    Abstract So far, it has been still unknown how liamocins are biosynthesized, regulated, transported and secreted. In this study, a highly reducing polyketide synthase (HR-PKS), a mannitol-1-phosphate dehydrogenase (MPDH), a mannitol dehydrogenase (MtDH), an arabitol dehydrogenase (ArDH) and an esterase (Est1) were found to be closely related to core biosynthesis of extracellular liamocins in Aureobasidium melanogenum 6-1-2. The HR-PKS was responsible for biosynthesis of 3,5-dihydroxydecanoic acid. The MPDH and MtDH were implicated in mannitol biosynthesis and the ArDH was involved in arabitol biosynthesis. The Est1 catalyzed ester bond formation of them. A phosphopantetheine transferase (PPTase) activated the HR-PKS and a transcriptional activator Ga11 activated expression of the PKS1 gene. Therefore, deletion of the PKS1 gene, all the three genes encoding MPDH, MtDH and ArDH, the EST1, the gene responsible for PPTase and the gene for Ga11 made all the disruptants (Δpks13, Δpta13, Δest1, Δp12 and Δg11) totally lose the ability to produce any liamocins. A GLTP gene encoding a glycolipid transporter and a MDR1 gene encoding an ABC transporter took part in transport and secretion of the produced liamocins into medium. Removal of the GLTP gene and the MDR1 gene resulted in a Δgltp1 mutant and a Δmdr16 mutant, respectively, that lost the partial ability to secrete liamocins, but which cells were swollen and intracellular lipid accumulation was greatly enhanced. Hydrolysis of liamocins released 3,5-dihydroxydecanoic acid, mannitol, arabitol and acetic acid. We proposed a core biosynthesis pathway, regulation, transport and secretion of liamocins in A. melanogenum.
    MeSH term(s) Ascomycota/genetics ; Ascomycota/metabolism ; Biosynthetic Pathways/physiology ; Gene Knock-In Techniques/methods ; Mannitol/analogs & derivatives ; Mannitol/analysis ; Mannitol/metabolism ; Oils/analysis ; Oils/metabolism ; Protein Transport/physiology
    Chemical Substances Oils ; liamocin A1 ; liamocin B1 ; Mannitol (3OWL53L36A)
    Language English
    Publishing date 2020-01-30
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2969-5
    ISSN 1470-8728 ; 0006-2936 ; 0306-3275 ; 0264-6021
    ISSN (online) 1470-8728
    ISSN 0006-2936 ; 0306-3275 ; 0264-6021
    DOI 10.1042/BCJ20190922
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Nitenpyram analogues with 1,4-dihydropyridine fixed cis-configuration:synthesis,insecticidal activities and molecular docking studies

    XUE Sijia / PANG Chunchengn / CHEN Yanxia / LIU Tianyan

    Journal of Shanghai Normal University (Natural Sciences), Vol 42, Iss 4, Pp 360-

    2013  Volume 367

    Abstract: A novel series of Nitenpyram analogues(Ia-Ij) with 1,4-dihydropyridine fixed cis-configuration were designed and synthesized.Preliminary bioassays showed that most of them exhibited good insecticidal activities against Aphis medicagini and Brown rice ... ...

    Abstract A novel series of Nitenpyram analogues(Ia-Ij) with 1,4-dihydropyridine fixed cis-configuration were designed and synthesized.Preliminary bioassays showed that most of them exhibited good insecticidal activities against Aphis medicagini and Brown rice planthopper at 500 mg/L and 100 mg/L.The analogue Ij afforded the best activity in vitro,that had 100% mortality at 4 mg/L against Brown rice planthopper and Aphis medicagin.In addition,the molecular docking simulations revealed that the structural uniqueness of these analogues may lead to a unique molecular recognition and binding mode,and the results explained the SARs observed in vitro, which shed light on the novel insecticidal mechanism of these novel nitenpyam analogues.
    Keywords cis-Nitenpyram analogue ; 1,4-dihydropyridine ; synthesis ; insecticidal acvitity ; molecular docking ; Science (General) ; Q1-390
    Language Chinese
    Publishing date 2013-08-01T00:00:00Z
    Publisher Academic Journals Center of Shanghai Normal University
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Nitenpyram analogues with 1,4-dihydropyridine fixed cis-configuration:synthesis,insecticidal activities and molecular docking studies

    XUE Sijia / PANG Chuncheng / CHEN Yanxia / LIU Tianyan

    Journal of Shanghai Normal University (Natural Sciences), Vol 42, Iss 4, Pp 360-

    2013  Volume 367

    Abstract: A novel series of Nitenpyram analogues(Ia-Ij) with 1,4-dihydropyridine fixed cis-configuration were designed and synthesized.Preliminary bioassays showed that most of them exhibited good insecticidal activities against Aphis medicagini and Brown rice ... ...

    Abstract A novel series of Nitenpyram analogues(Ia-Ij) with 1,4-dihydropyridine fixed cis-configuration were designed and synthesized.Preliminary bioassays showed that most of them exhibited good insecticidal activities against Aphis medicagini and Brown rice planthopper at 500 mg/L and 100 mg/L.The analogue Ij afforded the best activity in vitro,that had 100% mortality at 4 mg/L against Brown rice planthopper and Aphis medicagin.In addition,the molecular docking simulations revealed that the structural uniqueness of these analogues may lead to a unique molecular recognition and binding mode,and the results explained the SARs observed in vitro, which shed light on the novel insecticidal mechanism of these novel nitenpyam analogues.
    Keywords cis-Nitenpyram analogue ; 1,4-dihydropyridine ; synthesis ; insecticidal acvitity ; molecular docking ; Science (General) ; Q1-390
    Language English
    Publishing date 2013-08-01T00:00:00Z
    Publisher Academic Journals Center of Shanghai Normal University
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article: Efficient Conversion of Cane Molasses into Fructooligosaccharides by a Glucose Derepression Mutant of Aureobasidium melanogenum with High β-Fructofuranosidase Activity

    Zhang, Shuhang / Jiang, Hong / Xue, Sijia / Ge, Na / Sun, Yi / Chi, Zhe / Liu, Guanglei / Chi, Zhenming

    Journal of agricultural and food chemistry. 2019 Nov. 05, v. 67, no. 49

    2019  

    Abstract: Fructooligosaccharides (FOSs) are excellent food ingredients or feed additives by stimulating probiotics. In this paper, a CREA gene encoding a glucose repressor in the β-fructofuranosidase producer Aureobasidium melanogenum 33 with high-level FOS ... ...

    Abstract Fructooligosaccharides (FOSs) are excellent food ingredients or feed additives by stimulating probiotics. In this paper, a CREA gene encoding a glucose repressor in the β-fructofuranosidase producer Aureobasidium melanogenum 33 with high-level FOS biosynthesis was disrupted, and glucose repression in disruptant D28 was relieved. The disruptant D28 produced up to 2100 U/mL of β-fructofuranosidase activity, whereas the enzyme activities produced by parent strain 33 and complemented strain C11 were below 600 U/mL. The whole cells of the disruptant D28 was used to convert cane molasses into FOSs, and 0.58 g of FOSs/g of molasses sugar was synthesized from 350 g/L cane molasses sugar within 4 h. Results demonstrated that the industrial waste cane molasses can be efficiently converted into FOSs by the glucose derepression mutant D28 with high β-fructofuranosidase activity. This low-cost and environmentally friendly bioprocess has great potential applications in bioengineering and biotechnology for FOS production.
    Keywords Aureobasidium ; beta-fructofuranosidase ; bioengineering ; bioprocessing ; biosynthesis ; biotechnology ; enzyme activity ; feed additives ; fructooligosaccharides ; genes ; glucose ; industrial wastes ; ingredients ; molasses ; mutants ; probiotics
    Language English
    Dates of publication 2019-1105
    Size p. 13665-13672.
    Publishing place American Chemical Society
    Document type Article
    ZDB-ID 241619-0
    ISSN 1520-5118 ; 0021-8561
    ISSN (online) 1520-5118
    ISSN 0021-8561
    DOI 10.1021/acs.jafc.9b05826
    Database NAL-Catalogue (AGRICOLA)

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