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Article ; Online: Factors Influencing Students’ Continuance Usage Intention with Virtual Classroom during the COVID-19 Pandemic

Xin Huang / Hui Zhi

Sustainability, Vol 15, Iss 4420, p

An Empirical Study

2023 Volume 4420

Abstract: The constant variation of COVID-19 has intensified the spread and recurrence of the epidemic, and education continues to be hard hit in most countries. The virtual classroom has become the main platform to replace the traditional classroom in the COVID- ... ...

Abstract	The constant variation of COVID-19 has intensified the spread and recurrence of the epidemic, and education continues to be hard hit in most countries. The virtual classroom has become the main platform to replace the traditional classroom in the COVID-19 pandemic context. Due to the lack of a comprehensive understanding of college students’ perceptions of the platform system, it is essential to explore the factors and mechanisms that influence students’ willingness to use virtual classrooms consistently to improve the learning efficiency and optimize the effect of educational communication during the epidemic. This study integrates the Delone and McLean (D&M) information systems (IS) success model, expectation–confirmation model (ECM), and instructor quality factor to construct an operational model, and it used a structural equation model to analyze the 411 valid samples received from online questionnaires. The results reveal that the determinants of college students’ perceived usefulness of virtual classrooms are service quality, instructor quality, and confirmation, while system quality has no effect on perceived usefulness in the context of the COVID-19 pandemic. Secondly, system quality, service quality, and instructor quality are three critical antecedents of confirmation, and perceived usefulness and confirmation positively affect satisfaction. Finally, perceived usefulness and satisfaction directly affect college students’ continuance intention.
Keywords	COVID-19 pandemic ; virtual classroom ; continuance intention ; college students ; D&M IS success model ; expectation–confirmation model ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
Language	English
Publishing date	2023-03-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Primary adrenal diffuse large B cell lymphoma arising within an adrenal myelolipoma: A case report and review of the literature.

Zhang, Hui-Zhi / Wang, Su-Ying

Current problems in cancer

2021 Volume 45, Issue 6, Page(s) 100724

Abstract: Adrenal myelolipoma (AML) is a benign tumor that consists of mature adipose tissue and bone marrow elements. We report a case of a 57-year-old woman who presented with complaint of lower abdominal discomfort. Computed tomography scan of abdomen and ... ...

Abstract	Adrenal myelolipoma (AML) is a benign tumor that consists of mature adipose tissue and bone marrow elements. We report a case of a 57-year-old woman who presented with complaint of lower abdominal discomfort. Computed tomography scan of abdomen and pelvis revealed a mass in the left adrenal measuring 2.0 cm which was radiologically considered to be AML. Pathological evaluation of the lesion showed foci of lymphoid aggregate in a background of AML that were confirmed to be diffuse large B cell lymphoma by immunohistochemistry and gene rearrangement. To our knowledge, this collision tumor has not been reported previously. The clinical, radiological, pathological features, and treatment are discussed.
MeSH term(s)	Adrenal Gland Neoplasms/diagnostic imaging ; Adrenal Gland Neoplasms/drug therapy ; Adrenal Gland Neoplasms/pathology ; Antineoplastic Combined Chemotherapy Protocols/therapeutic use ; Cyclophosphamide/therapeutic use ; Doxorubicin/therapeutic use ; Female ; Humans ; Lymphoma, Large B-Cell, Diffuse/diagnostic imaging ; Lymphoma, Large B-Cell, Diffuse/drug therapy ; Lymphoma, Large B-Cell, Diffuse/pathology ; Middle Aged ; Myelolipoma/diagnostic imaging ; Myelolipoma/drug therapy ; Myelolipoma/pathology ; Prednisone/therapeutic use ; Treatment Outcome ; Vincristine/therapeutic use
Chemical Substances	Vincristine (5J49Q6B70F) ; Doxorubicin (80168379AG) ; Cyclophosphamide (8N3DW7272P) ; Prednisone (VB0R961HZT)
Language	English
Publishing date	2021-03-06
Publishing country	United States
Document type	Case Reports ; Journal Article ; Review
ZDB-ID	441816-5
ISSN	1535-6345 ; 0147-0272
ISSN (online)	1535-6345
ISSN	0147-0272
DOI	10.1016/j.currproblcancer.2021.100724
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Article ; Online: Genome-Wide Characterization and Haplotypic Variation Analysis of the YUC Gene Family in Foxtail Millet ( Setaria italica )

Qiang Meng / Renliang Zhang / Yannan Wang / Hui Zhi / Sha Tang / Guanqing Jia / Xianmin Diao

International Journal of Molecular Sciences, Vol 24, Iss 21, p

2023 Volume 15637

Abstract: Panicle development and grain production in crop species are essential breeding characteristics affected by the synthesis of auxin, which is influenced by flavin monooxygenase-encoding genes such as YUC ( YUCCA ) family members. In this trial, fourteen ... ...

Abstract	Panicle development and grain production in crop species are essential breeding characteristics affected by the synthesis of auxin, which is influenced by flavin monooxygenase-encoding genes such as YUC ( YUCCA ) family members. In this trial, fourteen YUCs were identified and named uniformly in foxtail millet, an ancient crop species cultivated across the world. The phylogenetic analysis revealed that the SiYUCs were clustered into four subgroups; protein motif and gene structure analyses suggested that the closely clustered SiYUC genes were relatively conserved within each subgroup; while genome mapping analysis indicated that the SiYUC genes were unevenly distributed on foxtail millet chromosomes and colinear with other grass species. Transcription analysis revealed that the SiYUC genes differed greatly in expression pattern in different tissues and contained hormonal/light/stress-responding cis -elements. The haplotype characterization of SiYUC genes indicated many superior haplotypes of SiYUCs correlated with higher panicle and grain weight could be favorably selected by breeding. These results will be useful for the further study of the functional characteristics of SiYUC genes, particularly with regard to the marker-assisted pyramiding of beneficial haplotypes in foxtail millet breeding programs.
Keywords	YUC genes ; auxin ; gene expression ; haplotype analysis ; foxtail millet ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
Subject code	572
Language	English
Publishing date	2023-10-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
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Article ; Online: Inferring SARS-CoV-2 functional genomics from viral transcriptome with identification of potential antiviral drugs and therapeutic targets

Xu Pan / Xin Li / Shangwei Ning / Hui Zhi

Cell & Bioscience, Vol 11, Iss 1, Pp 1-

2021 Volume 7

Abstract: Abstract Coronavirus disease 2019 (COVID-19) is an emerging infectious disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and has posed a serious threat to global health. Here, we systematically characterized the ... ...

Abstract	Abstract Coronavirus disease 2019 (COVID-19) is an emerging infectious disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and has posed a serious threat to global health. Here, we systematically characterized the transcription levels of the SARS-CoV-2 genes and identified the responsive human genes associated with virus infection. We inferred the possible biological functions of each viral gene and depicted the functional landscape based on guilt-by-association and functional enrichment analyses. Subsequently, the transcription factor regulatory network, protein–protein interaction network, and non-coding RNA regulatory network were constructed to discover more potential antiviral targets. In addition, several potential drugs for COVID-19 treatment and prevention were recognized, including known cell proliferation-related, immune-related, and antiviral drugs, in which proteasome inhibitors (bortezomib, carfilzomib, and ixazomib citrate) may play an important role in the treatment of COVID-19. These results provided novel insights into the understanding of SARS-CoV-2 functional genomics and host-targeting antiviral strategies for SARS-CoV-2 infection.
Keywords	Biotechnology ; TP248.13-248.65 ; Biology (General) ; QH301-705.5 ; Biochemistry ; QD415-436
Subject code	570
Language	English
Publishing date	2021-09-01T00:00:00Z
Publisher	BMC
Document type	Article ; Online
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Article ; Online: Volatile Composition and Classification of Paeonia lactiflora Flower Aroma Types and Identification of the Fragrance-Related Genes

Qian Zhao / Lina Gu / Yuqing Li / Hui Zhi / Jianrang Luo / Yanlong Zhang

International Journal of Molecular Sciences, Vol 24, Iss 9410, p

2023 Volume 9410

Abstract: Flower scent is one of the main ornamental characteristics of herbaceous peony, and the improvement of flower fragrance is a vital objective of herbaceous peony breeding. In this study, 87 herbaceous peony cultivars were divided into three groups (no/ ... ...

Abstract	Flower scent is one of the main ornamental characteristics of herbaceous peony, and the improvement of flower fragrance is a vital objective of herbaceous peony breeding. In this study, 87 herbaceous peony cultivars were divided into three groups (no/light fragrance, medium fragrance, and strong fragrance) based on their sensory evaluation scores, and 16 strong fragrance cultivars and one no fragrance cultivar were selected for subsequent analysis. Sixty-eight volatile components were detected in these 17 cultivars based on solid-phase microextraction (SPME) and gas chromatography/mass spectrometry (GC/MS), and 26 types were identified as important scent components. They were composed of terpenoids, benzenoids/phenylpropanoids, and fatty acid derivatives. According to the content and odor threshold of these main aroma components, the characteristic aroma substances of herbaceous peony were identified, including linalool, geraniol, citronellol, and phenylethyl alcohol (2-PE). The cultivars of strong scented herbaceous peony were divided into three types: rose scent, lily scent, and mixed scent. We explored the possible key genes of characteristic aroma substances in herbaceous peony petals with different odors through the qRT-PCR. The key genes encoding monoterpene biosynthesis were found to be PlDXS2 , PlDXR1 , PlMDS1 , PlHDR1 , PlGPPS3, and PlGPPS4 . In addition, the linalool synthase (LIS) gene and the geraniol synthase (GES) gene were also found. PlAADC1 , PlPAR1, and PlMAO1, related to the biosynthesis of 2-PE were detected, and the synthetic pathway of 2-PE was speculated. In conclusion, these findings revealed that the difference in gene expression of monoterpene and 2-PE synthesis pathway was related to the difference in the fragrance of herbaceous peony. This study explored the releasing pathway of herbaceous peony characteristic aroma substances and provided key genetic resources for fragrance improvement.
Keywords	herbaceous peony ; floral fragrance ; volatiles ; monoterpenes ; phenylethyl alcohol ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
Subject code	580
Language	English
Publishing date	2023-05-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Study on establishment of residual analysis methods and residue degradation regulation of natural pyrethrin in barley plants and soil on Qinghai Plateau

Hui Gao / Dong Zhao / Lei Wang / Hui Zhi / Nima Bai / Hengtao Dong / Hongyu Chen / Wei Li

Arabian Journal of Chemistry, Vol 17, Iss 2, Pp 105408- (2024)

2024

Abstract: The purpose of this study is to develop an accurate and efficient assay for the detection of pyrethroid residues and degradation in barley and soil in the Qinghai Plateau region. A sensitive and selective method was developed for the determination of ... ...

Abstract	The purpose of this study is to develop an accurate and efficient assay for the detection of pyrethroid residues and degradation in barley and soil in the Qinghai Plateau region. A sensitive and selective method was developed for the determination of pyrethrin residues in highland barley (kernel, stem, and root) and soil in the Qinghai Plateau by liquid chromatography (LC-MS/MS). Multi-residue analysis of pyrethrin in samples involves simple extraction with acetonitrile, salt-out with NaCl, MgSO4 absorption of water, cleaning with GCB and PSA, respectively, followed by separation with XR-ODS II column, and multi-reaction detection mode detection using a positive mode electrospray ionization source (ESI + ). The results showed that the 6 different components of pyrethrin had a good detection effect in the concentration range of 0.01 ∼ 1.0 mg/L, and the correlation coefficient was greater than 0.9990. The limits of quantitation of each component on each substrate were 0.01 ∼ 0.05 mg/kg, the average daily recoveries were 87.58 ∼ 95.44 %, and the relative standard deviations were 0.4 ∼ 3.8 %. The half-life of pyrethrin in barley grains, stems and soil was 0.77 ∼ 2.57 d. In soil and highland barley, the maximum dose of pyrethrin and twice the maximum dose of pyrethrin were applied, and the final residue 7 days after treatment was less than 0.2 mg/kg. The degradation behavior of pyrethrin in soil at three test sites showed that organic carbon and pH were important factors affecting the degradation of pyrethrin, and the effect of pH on the degradation of six pyrethrin components was greater than that of organic carbon. These studies provide theoretical basis for environmental safety evaluation caused by pyrethrin use in the Qinghai Plateau.
Keywords	Highland barley ; Pyrethrins ; The degradation dynamics rhythm ; Terminal residue ; Soil degradation ; Chemistry ; QD1-999
Subject code	630
Language	English
Publishing date	2024-02-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: AFP-producing Xp11 translocation renal cell carcinoma: Case report and review of the literature.

Zhang, Hui-Zhi / Wang, Su-Ying

Current problems in cancer

2020 Volume 45, Issue 3, Page(s) 100689

Abstract: Alpha-fetoprotein (AFP) is a useful tumor marker for hepatocellular carcinomas and yolk sac tumors. Rare extrahepatic visceral malignancies may be associated with AFP production and those exhibiting a hepatoid differentiation by morphology and ... ...

Abstract	Alpha-fetoprotein (AFP) is a useful tumor marker for hepatocellular carcinomas and yolk sac tumors. Rare extrahepatic visceral malignancies may be associated with AFP production and those exhibiting a hepatoid differentiation by morphology and immunohistochemical are classified as hepatoid adenocarcinoma. Renal cell carcinoma (RCC) producing AFP is a rare entity. To date, only one case of AFP-producing Xp11 translocation RCC has been reported. We reported another case of Xp11 translocation RCC, in which the tumor cells displayed strong immunostaining for AFP, HepPar1, and GPC-3. Additionally, the other published cases are reviewed.
MeSH term(s)	Adult ; Biomarkers, Tumor ; Carcinoma, Renal Cell/blood ; Carcinoma, Renal Cell/pathology ; Carcinoma, Renal Cell/surgery ; Humans ; Kidney Neoplasms/blood ; Kidney Neoplasms/pathology ; Kidney Neoplasms/surgery ; Male ; Translocation, Genetic ; Treatment Outcome ; alpha-Fetoproteins/analysis
Chemical Substances	AFP protein, human ; Biomarkers, Tumor ; alpha-Fetoproteins
Language	English
Publishing date	2020-12-29
Publishing country	United States
Document type	Case Reports ; Journal Article ; Review
ZDB-ID	441816-5
ISSN	1535-6345 ; 0147-0272
ISSN (online)	1535-6345
ISSN	0147-0272
DOI	10.1016/j.currproblcancer.2020.100689
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Article ; Online: Effects of different concentrations of dexamethasone on pulmonary histology in rats with chronic asthma

Feng-Chun Ren / Hui-Zhi Zhu

Journal of Hainan Medical University, Vol 26, Iss 2, Pp 1-

2020 Volume 6

Abstract: Objective: To observe the intervention effects of different concentrations of dexamethasone on the general situation and pulmonary histology of chronic asthma rats, and to explore the suitable intragastric dose of dexamethasone in the rat model of ... ...

Abstract	Objective: To observe the intervention effects of different concentrations of dexamethasone on the general situation and pulmonary histology of chronic asthma rats, and to explore the suitable intragastric dose of dexamethasone in the rat model of chronic asthma. Methods: 75 healthy male Sprague-Dawley(SD)rats were randomly divided into normal group, M group, dexamethasone low dose, middle dose and high dose group by random number table. The rat model of chronic asthma was established by sensitization and challenge of ovalbumin(OVA). From the 20th day of the experiment, dexamethasone groups were given intragastric administration of 0.0625mg/ (kg ·d), 0.125mg/ (kg ·d) and 0.5mg/ (kg ·d), respectively. The general situation of rats was observed and recorded. The histological changes of rat lungs were observed by HE staining and Masson staining. Results: The degree of inflammatory infiltration of bronchus and surrounding tissue in the M group was significantly higher than that in the normal group (P < 0.01). The thickness of airway wall and smooth muscle and the deposition of airway collagen in the M group were significantly higher than those in the normal group (P < 0.01). After one week of intervention, the average daily food intake and body mass of rats in the high dose group were significantly lower than those in the M group (P < 0.01), and the increase in body mass in the middle and low dose groups was significantly slower than that in the M group (P < 0.01). After 2 weeks of intervention, the average daily food intake of rats in the middle and low dose groups was significantly lower than that in the M group (P < 0.01). After 4 weeks of intervention, the average daily food intake in the middle and low dose groups was significantly lower than that in the low dose group (P < 0.01). The inflammatory infiltration of lung tissue in the middle and low dose groups was significantly less than that in the model group, and the thickness of airway wall and smooth muscle and the deposition of airway ...
Keywords	chronic asthma ; rat model ; dexamethasone ; histological changes ; Medicine ; R
Subject code	610 ; 630
Language	English
Publishing date	2020-01-01T00:00:00Z
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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Article: Development of cellulose nanofibrils reinforced polyvinyl alcohol films incorporated with alizarin for intelligent food packaging

Chen, Hui‐zhi / Zhang, Min / Rao, Zhiming

International journal of food science & technology. 2021 Sept., v. 56, no. 9

2021

Abstract: Visual pH‐sensing films were fabricated using cellulose nanofibrils (CNF) reinforced polyvinyl alcohol (PVA) and alizarin. The relationships between the ratio of PVA: CNF hydrogel (2:1, 1:1, 1:2) and the physical properties and colour response efficiency ...

Abstract	Visual pH‐sensing films were fabricated using cellulose nanofibrils (CNF) reinforced polyvinyl alcohol (PVA) and alizarin. The relationships between the ratio of PVA: CNF hydrogel (2:1, 1:1, 1:2) and the physical properties and colour response efficiency of indicator films were investigated. Fourier transform infrared spectroscopy of films evidenced alizarin and CNF was properly incorporated by physical interaction. A new weak X‐ray diffraction peak appeared at 2θ = 22.4°, which was affected by the incorporation of CNF. The increase in the CNF content induced enhancements of thermal stability, tensile strength, water contact angle and colour sensitivity of the indicator films. The colourimetric films had a higher sensitivity to discolouration when exposed to acidic vapours than alkaline vapours. The films presented a remarkable colour change varied from purple in alkaline condition to yellow in acidic condition. Therefore, this colourimetric film can be used as a volatile acid sensor for intelligent packaging.
Keywords	Fourier transform infrared spectroscopy ; X-ray diffraction ; alizarin ; cellulose nanofibers ; color ; contact angle ; discoloration ; hydrogels ; polyvinyl alcohol ; tensile strength ; thermal stability
Language	English
Dates of publication	2021-09
Size	p. 4248-4257.
Publishing place	John Wiley & Sons, Ltd
Document type	Article
Note	JOURNAL ARTICLE
ZDB-ID	883561-5
ISSN	0950-5423
ISSN	0950-5423
DOI	10.1111/ijfs.15192
Database	NAL-Catalogue (AGRICOLA)

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Article: Comparative analysis of 3D printability and rheological properties of surimi gels via LF-NMR and dielectric characteristics

Chen, Hui-zhi / Zhang, Min / Yang, Chao-hui

Journal of food engineering. 2021 Mar., v. 292

2021

Abstract: The rheological properties of raw materials as 3D printing inks play a vital role in their printability and quality. This work was aimed to evaluate the potential of low field nuclear magnetic resonance (LF-NMR) and dielectric characteristics (at 915 and ...

Abstract	The rheological properties of raw materials as 3D printing inks play a vital role in their printability and quality. This work was aimed to evaluate the potential of low field nuclear magnetic resonance (LF-NMR) and dielectric characteristics (at 915 and 2450 MHz) to predict the rheological properties and estimate the printability of surimi gels at different NaCl and water concentrations. Hierarchical cluster analysis of rheological parameters showed four groups of surimi gels, which were described as difficult extrusion, good extrusion and self-supporting, good extrusion but poor self-supporting, and difficult formation. Comparison of two monitoring techniques, discriminant analysis based on LF-NMR showed a higher classification accuracy of printability in samples, and partial least squares regression (PLSR) models using LF-NMR for predicting main rheological properties had better predictive accuracy and robustness. Thus, the study indicated that LF-NMR has a great potential in predicting rheological properties and estimating the printability of surimi gels.
Keywords	cluster analysis ; discriminant analysis ; extrusion ; nuclear magnetic resonance spectroscopy ; surimi
Language	English
Dates of publication	2021-03
Publishing place	Elsevier Ltd
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	622518-4
ISSN	0260-8774
ISSN	0260-8774
DOI	10.1016/j.jfoodeng.2020.110278
Database	NAL-Catalogue (AGRICOLA)

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