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Article ; Online: Preschool teachers' predicaments of teaching online and strategies employed during the COVID-19 pandemic: A literature review.

Liu, Zi Rui

2024

Abstract: Background: The COVID-19 pandemic accelerated the transition to remote preschool education, highlighting the crucial role of preschool teachers in navigating pedagogical transformations, adapting to technology, and addressing the challenges of distance ... ...

Abstract	Background: The COVID-19 pandemic accelerated the transition to remote preschool education, highlighting the crucial role of preschool teachers in navigating pedagogical transformations, adapting to technology, and addressing the challenges of distance learning. Objective: This study delved into the intricate challenges confronted by educators specializing in early childhood education within the realm of remote instruction during the COVID-19 pandemic. Additionally, it scrutinized a spectrum of tactics and interventions implemented to overcome the challenges, presenting nuanced insights to enhance the effectiveness of online pedagogy. Methods: Conducting a systematic literature review, this study comprehensively analysed academic sources to synthesize challenges faced by preschool teachers and their adaptive strategies during the transition to remote instruction induced by the COVID-19. The investigation focused on online teaching strategies, COVID-19 implications, and the broader landscape of remote learning. Results: The review illuminated intricate challenges, encompassing technological constraints, pedagogical adjustments, and psychological adaptations. These challenges compelled the deployment of a diverse range of strategies, underscoring educators' resilience and resourcefulness in maintaining vibrant online teaching and learning ecosystems. Conclusion: This study offers a valuable compendium of insights, providing a comprehensive view of the evolving landscape of remote pedagogy. By fostering a nuanced understanding of the challenges and strategies, educators, administrators, and policymakers can collaboratively devise informed interventions. This collaborative effort optimizes online teaching practices, fostering enriched learning outcomes within the digital epoch.
Language	English
Publishing date	2024-01-18
Publishing country	Netherlands
Document type	Journal Article ; Review
ZDB-ID	1394194-x
ISSN	1875-9270 ; 1051-9815
ISSN (online)	1875-9270
ISSN	1051-9815
DOI	10.3233/WOR-230321
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: [Concentration and Reactivity of Carbonyl Compounds in the Atmosphere of North China].

Huang, Yu / Chen, Xi / Wang, Ying-Hong / Liu, Zi-Rui / Tang, Gui-Qian / Li, Xing-Ru

Huan jing ke xue= Huanjing kexue

2021 Volume 42, Issue 10, Page(s) 4602–4610

Abstract: To reveal the characteristics of photochemical pollution in North China, adsorbing columns with 2, 4-dinitrophenylhydrazine(DNPH) were used to sample carbonyl compounds in Shijiazhuang and Xinglong between May 2018 and April 2019. The samples were ... ...

Abstract	To reveal the characteristics of photochemical pollution in North China, adsorbing columns with 2, 4-dinitrophenylhydrazine(DNPH) were used to sample carbonyl compounds in Shijiazhuang and Xinglong between May 2018 and April 2019. The samples were analyzed by high-performance liquid chromatography to understand the composition, volume fraction, source, ·OH loss rate, and ozone formation potential of the carbonyl compounds. A total of 13 carbonyl compounds containing carbonyl groups were determined, of which acetone, formaldehyde, and acetaldehyde were highest at(6.46±5.25)×10
MeSH term(s)	Air Pollutants/analysis ; Atmosphere ; China ; Environmental Monitoring ; Vehicle Emissions/analysis
Chemical Substances	Air Pollutants ; Vehicle Emissions
Language	Chinese
Publishing date	2021-09-27
Publishing country	China
Document type	Journal Article
ISSN	0250-3301
ISSN	0250-3301
DOI	10.13227/j.hjkx.202011190
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Article: [Pollution Characteristics and Health Risk Assessment of Heavy Metals in PM

Lei, Wen-Kai / Li, Xing-Ru / Zhang, Lan / Xu, Jing / Zhao, Wen-Ji / Liu, Zi-Rui

Huan jing ke xue= Huanjing kexue

2020 Volume 42, Issue 1, Page(s) 38–44

Abstract: To reveal the pollution characteristics and the health risks of the trace heavy metals in the atmospheric particles in Baoding, Hebei province, PM2.5 samples were collected using a middle volume sampler, and the mass concentrations of V, Cr, Mn, Co, Ni, ... ...

Abstract	To reveal the pollution characteristics and the health risks of the trace heavy metals in the atmospheric particles in Baoding, Hebei province, PM2.5 samples were collected using a middle volume sampler, and the mass concentrations of V, Cr, Mn, Co, Ni, Cu, Zn, As, Cd, and Pb in the samples were determined by microwave digestion-inductively coupled plasma-mass spectrometry (ICP-MS). The results showed that the PM
MeSH term(s)	Adult ; Air Pollution/analysis ; Child ; China ; Environmental Monitoring ; Humans ; Metals, Heavy/analysis ; Particulate Matter/analysis ; Risk Assessment
Chemical Substances	Metals, Heavy ; Particulate Matter
Language	Chinese
Publishing date	2020-12-28
Publishing country	China
Document type	Journal Article
ISSN	0250-3301
ISSN	0250-3301
DOI	10.13227/j.hjkx.202004230
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Article ; Online: Homoleptic alkynyl-protected gold nanoclusters with unusual compositions and structures.

Guan, Zong-Jie / Hu, Feng / Li, Jiao-Jiao / Liu, Zi-Rui / Wang, Quan-Ming

Nanoscale

2020 Volume 12, Issue 25, Page(s) 13346–13350

Abstract: We report two novel homoleptic alkynyl-protected gold nanoclusters, which were synthesized by direct reduction of AuC[triple bond, length as m-dash]CR. Single-crystal X-ray structural analysis reveals that they have compositions of Au42(C[triple bond, ... ...

Abstract	We report two novel homoleptic alkynyl-protected gold nanoclusters, which were synthesized by direct reduction of AuC[triple bond, length as m-dash]CR. Single-crystal X-ray structural analysis reveals that they have compositions of Au42(C[triple bond, length as m-dash]CC6H4-2-CF3)22 (1) and Au50(C[triple bond, length as m-dash]C6H4-3-F)26 (2), respectively. Cluster 2 is the first Au50 nanocluster, and the metal-to-ligand ratios of 1 and 2 are different from those of known Aun(SR)m or Aux(C[triple bond, length as m-dash]CR)y nanoclusters. In addition, the metal kernels of these two clusters are built up unprecedented units. This work offers further insights into the synthesis of all-alkynyl-protected gold nanoclusters via a direct reduction method.
Language	English
Publishing date	2020-06-23
Publishing country	England
Document type	Journal Article
ZDB-ID	2515664-0
ISSN	2040-3372 ; 2040-3364
ISSN (online)	2040-3372
ISSN	2040-3364
DOI	10.1039/d0nr02986f
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: [Characteristics of Water-soluble Ions in an Autumn Haze Process in the Southern Sichuan Urban Agglomeration After the Implementation of China's Air Pollution Prevention and Control Action Plan].

Wu, An-Nan / Huang, Xiao-Juan / He, Ren-Jiang / Li, Jin-Jian / Ye, Mo-Lin / Wu, Tao / Xiao, Zhi-Dan / Liu, Zi-Rui / Wang, Yue-Si / Zhang, Xiao-Ling / Zhang, Jun-Ke

Huan jing ke xue= Huanjing kexue

2022 Volume 43, Issue 3, Page(s) 1170–1179

Abstract: To investigate the ... ...

Abstract	To investigate the PM
MeSH term(s)	Aerosols/analysis ; Air Pollutants/analysis ; Air Pollution/analysis ; Air Pollution/prevention & control ; China ; Environmental Monitoring ; Nitrates/analysis ; Particulate Matter/analysis ; Seasons ; Water
Chemical Substances	Aerosols ; Air Pollutants ; Nitrates ; Particulate Matter ; Water (059QF0KO0R)
Language	Chinese
Publishing date	2022-03-07
Publishing country	China
Document type	Journal Article
ISSN	0250-3301
ISSN	0250-3301
DOI	10.13227/j.hjkx.202106019
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Article: Consumption of Lamb Meat or Basa Fish Shapes the Gut Microbiota and Aggravates Pulmonary Inflammation in Asthmatic Mice.

Zheng, Hao-Cheng / Wang, Yong-An / Liu, Zi-Rui / Li, Ya-Lan / Kong, Jing-Wei / Ge, Dong-Yu / Peng, Gui-Ying

Journal of asthma and allergy

2020 Volume 13, Page(s) 509–520

Abstract: Objective: In China, lamb and fish are well-known triggers for an asthma attack. Our investigation aims at assessing whether the long-term intake of lamb meat or Basa fish would aggravate pulmonary inflammation as well as exploring changes in the ... ...

Abstract	Objective: In China, lamb and fish are well-known triggers for an asthma attack. Our investigation aims at assessing whether the long-term intake of lamb meat or Basa fish would aggravate pulmonary inflammation as well as exploring changes in the intestinal microbiota and immune cells in asthmatic mice. Materials and methods: The murine asthmatic model was established by intraperitoneal injection of ovalbumin (OVA) plus aluminum on day 0 and 14 and nebulization of OVA from day 21 to 27. Lamb meat or fish was administered to asthmatic mice by oral gavage from day 0 to 27. Results: Our results showed that long-term consumption of lamb meat or Basa fish in asthmatic mice increased the number of inflammatory cells in bronchoalveolar lavage fluid (BALF), enhanced levels of IL-5, IL-13 in BALF and total IgE in serum, aggravated pulmonary inflammatory cell infiltration and mucus secretion. Long-term oral lamb enhanced the proportion of type 2 innate lymphoid cells (ILC2) from small intestine while it inhibited that of Treg from lung in asthmatic mice. Oral fish showed no remarkable effect on that of ILC2 from lung and small intestine but inhibited that of intestinal Treg in asthmatic mice. What's more, the chao-1 and observed species richness as well as PD whole tree diversity increased in asthmatic mice while these increments were inhibited after lamb treatment. PCA analysis indicated that there were significant differences in the bacterial community composition after lamb or fish treatment in asthmatic mice. Both lamb and fish treatment enhanced the abundance of colonic Conclusion: Collectively, long-term intake of lamb or fish shapes colonic bacterial communities and aggravates pulmonary inflammation in asthmatic mice, which provides reasonable food guidance for asthmatic patients.
Language	English
Publishing date	2020-10-19
Publishing country	New Zealand
Document type	Journal Article
ZDB-ID	2494877-9
ISSN	1178-6965
ISSN	1178-6965
DOI	10.2147/JAA.S266584
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Article: Allium tuberosum alleviates pulmonary inflammation by inhibiting activation of innate lymphoid cells and modulating intestinal microbiota in asthmatic mice.

Zheng, Hao-Cheng / Liu, Zi-Rui / Li, Ya-Lan / Wang, Yong-An / Kong, Jing-Wei / Ge, Dong-Yu / Peng, Gui-Ying

Journal of integrative medicine

2020 Volume 19, Issue 2, Page(s) 158–166

Abstract: Objective: This study tests whether long-term intake of Allium tuberosum (AT) can alleviate pulmonary inflammation in ovalbumin (OVA)-induced asthmatic mice and evaluates its effect on the intestinal microbiota and innate lymphoid cells (ILCs).: ... ...

Abstract	Objective: This study tests whether long-term intake of Allium tuberosum (AT) can alleviate pulmonary inflammation in ovalbumin (OVA)-induced asthmatic mice and evaluates its effect on the intestinal microbiota and innate lymphoid cells (ILCs). Methods: BALB/c mice were divided into three groups: phosphate buffer saline, OVA and OVA + AT. The asthmatic murine model was established by sensitization and challenge of OVA in the OVA and OVA + AT groups. AT was given to the OVA + AT group by oral gavage from day 0 to day 27. On day 28, mice were sacrificed. Histopathological evaluation of lung tissue was performed using hematoxylin and eosin, and periodic acid-Schiff staining. The levels of IgE in serum, interleukin-5 (IL-5) and IL-13 from bronchoalveolar lavage fluid (BALF) were measured by enzyme-linked immunosorbent assay. The ILCs from the lung and gut were detected by flow cytometry. 16S ribosomal DNA sequencing was used to analyze the differences in colon microbiota among treatment groups. Results: We found that long-term intake of AT decreased the number of inflammatory cells from BALF, reduced the levels of IL-5 and IL-13 in BALF, and IgE level in serum, and rescued pulmonary histopathology with less mucus secretion in asthmatic mice. 16S ribosomal DNA sequencing results showed that AT strongly affected the colonic bacteria community structure in asthmatic mice, although it had no significant effect on the abundance and diversity of the microbiota. Ruminococcaceae and Desulfovibrionaceae were identified as two biomarkers of the treatment effect of AT. Moreover, AT decreased the numbers of ILCs in both the lung and gut of asthmatic mice. Conclusion: The results indicate that AT inhibits pulmonary inflammation, possibly by impeding the activation of ILCs and adjusting the homeostasis of gut microbiota in asthmatic mice.
MeSH term(s)	Animals ; Bronchoalveolar Lavage Fluid ; Chive ; Disease Models, Animal ; Gastrointestinal Microbiome ; Immunity, Innate ; Inflammation/drug therapy ; Lung ; Lymphocytes ; Mice ; Mice, Inbred BALB C ; Pneumonia/drug therapy
Language	English
Publishing date	2020-11-24
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	2705612-0
ISSN	2095-4964
ISSN	2095-4964
DOI	10.1016/j.joim.2020.11.003
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Article: [Characteristics of the Size Distribution of Water Soluble Inorganic Ions in Sanya, Hainan].

Wang, Lu / Liu, Zi-Rui / Wen, Tian-Xue / Miao, Hong-Yan / Wang, Yue-Si

Huan jing ke xue= Huanjing kexue

2018 Volume 38, Issue 4, Page(s) 1298–1306

Abstract: Size-resolved filter samples were collected in Sanya every other week from June 2012 to May 2014. The mass concentrations of water-soluble inorganic ions, including anions ( ... ...

Abstract	Size-resolved filter samples were collected in Sanya every other week from June 2012 to May 2014. The mass concentrations of water-soluble inorganic ions, including anions (Cl
Language	Chinese
Publishing date	2018-08-02
Publishing country	China
Document type	English Abstract ; Journal Article
ISSN	0250-3301
ISSN	0250-3301
DOI	10.13227/j.hjkx.201608081
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Article: [Comparison of Monitoring Methods of Organic Carbon and Element Carbon in Atmospheric Fine Particles].

Pang, Bo / Ji, Dong-sheng / Liu, Zi-rui / Zhu, Bin / Wang, Yue-si

Huan jing ke xue= Huanjing kexue

2016 Volume 37, Issue 4, Page(s) 1230–1239

Abstract: Accurate measurement of organic carbon (OC) and elemental carbon (EC) in atmospheric fine particulate is an important scientific basis for studying the formation and source apportionment of carbonaceous aerosol. The selection of different analysis ... ...

Abstract	Accurate measurement of organic carbon (OC) and elemental carbon (EC) in atmospheric fine particulate is an important scientific basis for studying the formation and source apportionment of carbonaceous aerosol. The selection of different analysis programs will lead to difference in the OC and EC concentrations, and further result in the misjudgment of the results. The OC and EC concentrations observed using three temperature protocols including RT-Quartz ( R) , NIOSH 5040 (N) and Fast-TC (F) were compared and analyzed in combination with the degree of air pollution in Beijing. The results showed that there was no significant difference in the TC (TC = OC + EC), OC and EC concentrations observed using R, N and F protocols and certain deviation was found among the TC (TC = OC + EC) , OC and EC concentrations. For TC, the results observed using R protocol were 5% lower than those using N protocol; hut 1% higher than those using F protocol. For OC, the results obtained using R were 9% lower than those using N protocol and 1% higher than those using F protocol. For EC, the results obtained using R were 20% higher than those using N protocol and 11% lower than those using F protocol. The variation coefficients for TC, OC and EC obtained based on R protocol were less than the other two temperature protocols under different air quality degrees. The slopes of regression curves of TC, OC and EC between on-line analysis using R protocol and off-line analysis were 1.21,1. 14 and 1.35, respectively. The correlation coefficients of TC, OC and EC were 0.99, 0.99 and 0.98, respectively. In contrast with the Black carbon ( BC) concentrations monitored by multi-angle absorption spectrophotometer (MAAP), the EC concentrations measured by on-line OC/EC analyzer using R protocol were obviously lower. When the BC concentrations were less than or equal to 8 gg*m3, the EC/BC ratio was 0.39. While the EC/BC ratio was 0.88, when the BC concentrations were greater than 8 ggm3. The variation trends of EC and BC concentrations were similar, while systematic error existed between the results obtained using those two instruments.
MeSH term(s)	Aerosols/analysis ; Air Pollutants/analysis ; Atmosphere/analysis ; Beijing ; Carbon/analysis ; Environmental Monitoring ; Soot/analysis ; Temperature
Chemical Substances	Aerosols ; Air Pollutants ; Soot ; Carbon (7440-44-0)
Language	Chinese
Publishing date	2016-04-15
Publishing country	China
Document type	Comparative Study ; English Abstract ; Journal Article
ISSN	0250-3301
ISSN	0250-3301
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Article: [Characteristics of the Size Distribution of Water-soluble Ions During a Heavy Pollution Episode in the Winter in Tianjin].

Yao, Qing / Liu, Zi-Rui / Han, Su-Qin / Cai, Zi-Ying / Liu, Jing-le / Huang, Xiao-Juan / Liu, Jing-Yun / Wang, Yue-Si

Huan jing ke xue= Huanjing kexue

2018 Volume 38, Issue 12, Page(s) 4958–4967

Abstract: To characterize the size distribution of water-soluble inorganic ions (WSⅡ) during a heavy pollution episode, particle samples were collected by an Andersen cascade sampler in Tianjin in January 2014, and the concentrations of eight WSⅡ ( ... ...

Abstract	To characterize the size distribution of water-soluble inorganic ions (WSⅡ) during a heavy pollution episode, particle samples were collected by an Andersen cascade sampler in Tianjin in January 2014, and the concentrations of eight WSⅡ (Na
Language	Chinese
Publishing date	2018-07-02
Publishing country	China
Document type	English Abstract ; Journal Article
ISSN	0250-3301
ISSN	0250-3301
DOI	10.13227/j.hjkx.201702097
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