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Article ; Online: Determining the factors affecting customer satisfaction using an extraction-based feature selection approach

Weishen Wu / Dalianus Riantama

PeerJ Computer Science, Vol 8, p e

2022 Volume 850

Abstract: The coronavirus disease 2019 (COVID-19) causes tremendous damages to the world, including threats to human’s health and daily activities. Most industries have been affected by this pandemic, particularly the tourism industry. The online travel agencies ( ... ...

Abstract	The coronavirus disease 2019 (COVID-19) causes tremendous damages to the world, including threats to human’s health and daily activities. Most industries have been affected by this pandemic, particularly the tourism industry. The online travel agencies (OTAs) have suffered from the global tourism market crisis by air travel lockdown in many countries. How online travel agencies can survive at stake and prepare for the post-COVID-19 future has emerged as an urgent issue. This study aims to examine the critical factors of customers’ satisfaction to OTAs during the COVID-19 pandemic. A text mining method for feature selection, namely LASSO, was used to deal with online customer reviews and to extract factors that shape customers’ satisfaction to OTAs. Results showed that refunds, promptness, easiness and assurance were ranked as the most competitive factors of customers’ satisfaction, followed by bad reviews & cheap and excellent service & comparison. New factors to customers’ satisfaction were revealed during the global tourism recession. Findings provide OTAs guidelines to reset services priorities during the pandemic crisis.
Keywords	COVID-19 ; Online travel agencies ; Text mining ; LASSO ; Feature selection ; Customer satisfaction ; Electronic computers. Computer science ; QA75.5-76.95
Language	English
Publishing date	2022-01-01T00:00:00Z
Publisher	PeerJ Inc.
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Determining the factors affecting customer satisfaction using an extraction-based feature selection approach.

Wu, Weishen / Riantama, Dalianus

PeerJ. Computer science

2022 Volume 8, Page(s) e850

Abstract: The coronavirus disease 2019 (COVID-19) causes tremendous damages to the world, including threats to human's health and daily activities. Most industries have been affected by this pandemic, particularly the tourism industry. The online travel agencies ( ... ...

Abstract	The coronavirus disease 2019 (COVID-19) causes tremendous damages to the world, including threats to human's health and daily activities. Most industries have been affected by this pandemic, particularly the tourism industry. The online travel agencies (OTAs) have suffered from the global tourism market crisis by air travel lockdown in many countries. How online travel agencies can survive at stake and prepare for the post-COVID-19 future has emerged as an urgent issue. This study aims to examine the critical factors of customers' satisfaction to OTAs during the COVID-19 pandemic. A text mining method for feature selection, namely LASSO, was used to deal with online customer reviews and to extract factors that shape customers' satisfaction to OTAs. Results showed that refunds, promptness, easiness and assurance were ranked as the most competitive factors of customers' satisfaction, followed by bad reviews & cheap and excellent service & comparison. New factors to customers' satisfaction were revealed during the global tourism recession. Findings provide OTAs guidelines to reset services priorities during the pandemic crisis.
Language	English
Publishing date	2022-01-25
Publishing country	United States
Document type	Journal Article
ISSN	2376-5992
ISSN (online)	2376-5992
DOI	10.7717/peerj-cs.850
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: What motivates customers to repurchase online under social distancing?

Wu, Weishen / Widiatmo, Gumilang / Riantama, Dalianus

Frontiers in psychology

2023 Volume 14, Page(s) 1155302

Abstract: Global e-commerce is growing rapidly during the COVID pandemic. Previous research on customers' online shopping decisions rarely considered social distancing. To investigate customers' continued intention toward online purchases while socially isolated, ... ...

Abstract	Global e-commerce is growing rapidly during the COVID pandemic. Previous research on customers' online shopping decisions rarely considered social distancing. To investigate customers' continued intention toward online purchases while socially isolated, we propose a framework based on the UTAUT model. A survey of 330 valid samples was collected through an online survey among internet users during a period of social distancing in Indonesia. Hypotheses were validated using a structural equation modeling approach. The results showed that social contingency is the most influential factor on customers' intention to repurchase online under social restriction conditions, followed by customer perceived value and other significant factors. The findings contribute to providing a new understanding of customers' online repurchase intentions when they are in a contingency situation.
Language	English
Publishing date	2023-07-25
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2563826-9
ISSN	1664-1078
ISSN	1664-1078
DOI	10.3389/fpsyg.2023.1155302
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Article ; Online: Deconvolution of synovial myeloid cell subsets across pathotypes and role of COL3A1+ macrophages in rheumatoid arthritis remission.

Hu, Xuantao / Zhang, Ziji / Long, Lingli / Gu, Minghu / Chen, Weishen / Pan, Baiqi / Wu, Xiaoyu / Wang, Chao / Li, Chengxin / Zheng, Linli / Sheng, Puyi

Frontiers in immunology

2024 Volume 15, Page(s) 1307748

Abstract: Background: Monocyte/macrophage (Mo/Mp) is a critical cell population involved in immune modulation of rheumatoid synovitis (RA) across different pathotypes. This study aims to investigate the contribution of Mo/Mp clusters to RA activity, and the ... ...

Abstract	Background: Monocyte/macrophage (Mo/Mp) is a critical cell population involved in immune modulation of rheumatoid synovitis (RA) across different pathotypes. This study aims to investigate the contribution of Mo/Mp clusters to RA activity, and the biological function of particular subtypes in RA remission. Methods: We integrated single-cell RNA sequencing datasets from 4 published and 1 in-house studies using Liger selected by comparison. We estimated the abundance of Mo/Mp subtypes in bulk RNA-seq data from the 81 patients of the Pathobiology of Early Arthritis Cohort (PEAC) using deconvolution analysis. Correlations between Mo/Mp subtypes and RA clinical metrics were assessed. A particular cell type was identified using multicolor immunofluorescence and flow cytometry Results: We identified 8 Mo/Mp clusters. As a particular subtype among them, COL3A1+ Mp (CD68+, COL3A1+, ACTA2-) enriched in myeloid pathotype and negatively correlated with RA severity metrics in all pathotypes. Flow cytometry and multicolor immunofluorescence evidenced the enrichment and M2-like phenotype of COL3A1+ Mp in the myeloid pathotype. Further assays suggested that COL3A1+ Mp potentially attenuates RA severity via expressing anti-inflammatory cytokines, enhancing Mp adhesion, and forming a physical barrier at the synovial lining. Conclusion: This study reported unexplored associations between different pathologies and myeloid cell subtypes. We also identified a fibroblast-and-M2-like cluster named COL3A1+ Mp, which potentially contributes to synovial immune homeostasis. Targeting the development of COL3A1+ Mp may hold promise for inducing RA remission.
MeSH term(s)	Humans ; Arthritis, Rheumatoid ; Synovitis/metabolism ; Macrophages ; Synoviocytes/metabolism ; Phenotype ; Collagen Type III
Chemical Substances	COL3A1 protein, human ; Collagen Type III
Language	English
Publishing date	2024-03-26
Publishing country	Switzerland
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2606827-8
ISSN	1664-3224 ; 1664-3224
ISSN (online)	1664-3224
ISSN	1664-3224
DOI	10.3389/fimmu.2024.1307748
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Article ; Online: Ultrafiltration concentrated biogas slurry can reduce the organic pollution of groundwater in fertigation.

Zeng, Weishen / Qiu, Jinrong / Wang, Dehan / Wu, Zhaoyun / He, Lintong

The Science of the total environment

2021 Volume 810, Page(s) 151294

Abstract: Biogas slurry has the problems of having a low concentration, having a large production volume, and containing many small-molecule organic pollutants. During the fertigation process of biogas slurry, many small-molecule organic pollutants may pose ... ...

Abstract	Biogas slurry has the problems of having a low concentration, having a large production volume, and containing many small-molecule organic pollutants. During the fertigation process of biogas slurry, many small-molecule organic pollutants may pose potential pollution risks to groundwater. In this study, the ultrafiltration membrane technology was used to separate small-molecule organics in the biogas slurry to prepare ultrafiltration concentrated biogas slurry (UCBS). To research the impact of UCBS and raw biogas slurry (RBS) on the small-molecule organic pollution of groundwater, a laboratory soil column simulation leaching device was used to conduct leaching experiments with 4 types of UCBS and RBS in acric ferralsols and hydragric anthrosols for two quarters (8 fertilization periods). The results of the study show that both UCBS and RBS caused nitrate pollution to groundwater. UCBS has a lower risk of organic pollution to groundwater than RBS. Irrigating UCBS in hydragric anthrosols has a higher risk of organic pollution of groundwater than that in acric ferralsols. Analysis of the molecular weight distribution of dissolved organic matter (DOM) in the leaching solution showed that the organic pollutants were mainly small molecules <10 kDa. According to 3D excitation-emission matrix (3D-EEM) analysis, the main organic pollutants in the leaching solution were fulvic acid, microbial protein metabolites and humic acid organic compounds. The research results show that the pretreatment of biogas slurry by ultrafiltration can reduce the risk of small-molecule organic pollution of groundwater in land application, which can provide a new scientific basis to standardize biogas slurry land application technical guidelines and reduce groundwater pollution.
MeSH term(s)	Biofuels ; Dissolved Organic Matter ; Groundwater ; Soil ; Ultrafiltration
Chemical Substances	Biofuels ; Dissolved Organic Matter ; Soil
Language	English
Publishing date	2021-10-29
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.2021.151294
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Article: Ultrafiltration concentrated biogas slurry can reduce the organic pollution of groundwater in fertigation

Zeng, Weishen / Qiu, Jinrong / Wang, Dehan / Wu, Zhaoyun / He, Lintong

Science of the total environment. 2022 Mar. 01, v. 810

2022

Abstract	Biogas slurry has the problems of having a low concentration, having a large production volume, and containing many small-molecule organic pollutants. During the fertigation process of biogas slurry, many small-molecule organic pollutants may pose potential pollution risks to groundwater. In this study, the ultrafiltration membrane technology was used to separate small-molecule organics in the biogas slurry to prepare ultrafiltration concentrated biogas slurry (UCBS). To research the impact of UCBS and raw biogas slurry (RBS) on the small-molecule organic pollution of groundwater, a laboratory soil column simulation leaching device was used to conduct leaching experiments with 4 types of UCBS and RBS in acric ferralsols and hydragric anthrosols for two quarters (8 fertilization periods). The results of the study show that both UCBS and RBS caused nitrate pollution to groundwater. UCBS has a lower risk of organic pollution to groundwater than RBS. Irrigating UCBS in hydragric anthrosols has a higher risk of organic pollution of groundwater than that in acric ferralsols. Analysis of the molecular weight distribution of dissolved organic matter (DOM) in the leaching solution showed that the organic pollutants were mainly small molecules <10 kDa. According to 3D excitation-emission matrix (3D-EEM) analysis, the main organic pollutants in the leaching solution were fulvic acid, microbial protein metabolites and humic acid organic compounds. The research results show that the pretreatment of biogas slurry by ultrafiltration can reduce the risk of small-molecule organic pollution of groundwater in land application, which can provide a new scientific basis to standardize biogas slurry land application technical guidelines and reduce groundwater pollution.
Keywords	Anthrosols ; Ferralsols ; biogas ; dissolved organic matter ; environment ; fertigation ; fulvic acids ; groundwater ; groundwater contamination ; humic acids ; land application ; metabolites ; molecular weight ; nitrates ; risk ; risk reduction ; slurries ; ultrafiltration
Language	English
Dates of publication	2022-0301
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	121506-1
ISSN	1879-1026 ; 0048-9697
ISSN (online)	1879-1026
ISSN	0048-9697
DOI	10.1016/j.scitotenv.2021.151294
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Macrophages-derived exosomes modulates wear particle-induced osteolysis via miR-3470b targeting TAB3/NF-κB signaling

Baiqi Pan / Ziji Zhang / Xiaoyu Wu / Guoyan Xian / Xuantao Hu / Minghui Gu / Linli Zheng / Xiang Li / Lingli Long / Weishen Chen / Puyi Sheng

Bioactive Materials, Vol 26, Iss , Pp 181-

2023 Volume 193

Keywords	Aseptic prothesis loosening ; Exosome ; Non-coding RNA ; Macrophage ; Inflammatory osteolysis ; Materials of engineering and construction. Mechanics of materials ; TA401-492 ; Biology (General) ; QH301-705.5
Language	English
Publishing date	2023-08-01T00:00:00Z
Publisher	KeAi Communications Co., Ltd.
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Application of the New Irrigation Protocol to Reduce Recurrence Rate in the Management Of Periprosthetic Joint Infection.

Wu, Xiaoyu / Chen, Weishen / Rong, Rong / Pan, Baiqi / Hu, Xuantao / Zheng, Linli / Alimu, Aerman / Chu, Chenghan / Tu, Yucheng / Zhang, Ziji / Ye, Yongyu / Gu, Minghui / Sheng, Puyi

Orthopaedic surgery

2024 Volume 16, Issue 3, Page(s) 577–584

Abstract: Objective: Irrigation is a conventional treatment for acute and chronic periprosthetic joint infections (PJI). However, there has been no unified standard for irrigation during surgery for PJI in the past, and the efficacy is uncertain. The purpose of ... ...

Abstract	Objective: Irrigation is a conventional treatment for acute and chronic periprosthetic joint infections (PJI). However, there has been no unified standard for irrigation during surgery for PJI in the past, and the efficacy is uncertain. The purpose of this study is to create a new irrigation protocol to enhance the infection control rate and reduce the postoperative recurrence rate of PJI patients. Methods: We conducted a single-institution retrospective review with a total of 56 patients who underwent revision total hip or knee arthroplasties due to PJI from January 2011 to January 2022. Conventional irrigation (CI) was used in 32 cases, and standard operating procedure of irrigation (SOPI) was used in 24. The CI protocol carries out an empirical irrigation after debridement, which is quite random. Our SOPI protocol clearly stipulates the soaking concentration and time of hydrogen peroxide and povidone-iodine. The irrigation is carried out three times, and tissue samples are taken from multiple parts before and after irrigation, which are sent for microbial culture. The important statistical indicators were the rate of positive microbiological culture and postoperative recurrence rate with an average follow-up of 24 average months. Results: The drainage volume was lower in the SOPI group than in the CI group on postoperative day 3 (p < 0.01) and 7 (p = 0.016). In addition, the percentage of positive microbiological cultures after the third irrigation was less than that before (p < 0.01) and after (p < 0.01) the first irrigation. The most common causative organism was Staphylococcus aureus, which was detected in 25.0% and 12.5% of the SOPI and CI groups, respectively. The failure rate at the final follow-up was 8.3% and 31.3% (p = 0.039) for the SOPI and CI groups, respectively. Conclusion: Compared with the traditional CI method, SOPI standardized the soaking time of hydrogen peroxide and povidone-iodine, increased the frequency of and irrigation, and proved that microorganisms were almost completely removed through the microbial culture of multiple tissues. SOPI has the potential to become a standardized irrigation process worthy of promotion, effectively reducing the postoperative recurrence rate of PJI patients.
MeSH term(s)	Humans ; Prosthesis-Related Infections/prevention & control ; Prosthesis-Related Infections/etiology ; Treatment Outcome ; Povidone-Iodine/therapeutic use ; Hydrogen Peroxide ; Arthroplasty, Replacement, Knee/adverse effects
Chemical Substances	Povidone-Iodine (85H0HZU99M) ; Hydrogen Peroxide (BBX060AN9V)
Language	English
Publishing date	2024-01-18
Publishing country	Australia
Document type	Journal Article
ZDB-ID	2503162-4
ISSN	1757-7861 ; 1757-7853 ; 1757-7861
ISSN (online)	1757-7861 ; 1757-7853
ISSN	1757-7861
DOI	10.1111/os.13948
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Article: Noble Metallic Pyramidal Substrate for Surface-Enhanced Raman Scattering Detection of Plasmid DNA Based on Template Stripping Method.

Wu, Wenjie / Li, Rui / Chen, Maodu / Li, Jiankang / Zhan, Weishen / Jing, Zhenguo / Pang, Lu

Micromachines

2021 Volume 12, Issue 8

Abstract: In this paper, a new method for manufacturing flexible and repeatable sensors made of silicon solar cells is reported. The method involves depositing the noble metal film directly onto the Si template and stripping out the substrate with a pyramid ... ...

Abstract	In this paper, a new method for manufacturing flexible and repeatable sensors made of silicon solar cells is reported. The method involves depositing the noble metal film directly onto the Si template and stripping out the substrate with a pyramid morphology by using an adhesive polymer. In order to evaluate the enhancement ability of the substrate, Rhodamine 6G (R6G) were used as surface-enhanced Raman scattering (SERS) probe molecules, and the results showed a high sensitivity and stability. The limit of detection was down to 10
Language	English
Publishing date	2021-08-02
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2620864-7
ISSN	2072-666X
ISSN	2072-666X
DOI	10.3390/mi12080923
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Article ; Online: Alginate-based aerogels as wound dressings for efficient bacterial capture and enhanced antibacterial photodynamic therapy.

Guo, Ning / Xia, Yu / Zeng, Weishen / Chen, Jia / Wu, Quanxin / Shi, Yaxin / Li, Guoying / Huang, Zhuoyi / Wang, Guanhai / Liu, Yun

Drug delivery

2022 Volume 29, Issue 1, Page(s) 1086–1099

Abstract: The development of novel wound dressings, such as aerogels, with rapid hemostasis and bactericidal capacities for pre-hospital care is necessary. To prevent the occurrence of bacterial resistance, antibacterial photodynamic therapy (aPDT) with broad- ... ...

Abstract	The development of novel wound dressings, such as aerogels, with rapid hemostasis and bactericidal capacities for pre-hospital care is necessary. To prevent the occurrence of bacterial resistance, antibacterial photodynamic therapy (aPDT) with broad-spectrum antibacterial ability and negligible bacterial resistance has been intensively studied. However, photosensitizers often suffer from poor water solubility, short singlet oxygen (
MeSH term(s)	Alginates/chemistry ; Anti-Bacterial Agents/chemistry ; Anti-Bacterial Agents/pharmacology ; Bandages ; Gels ; Photochemotherapy ; Staphylococcus aureus ; Wounds and Injuries/microbiology ; Wounds and Injuries/therapy
Chemical Substances	Alginates ; Anti-Bacterial Agents ; Gels
Language	English
Publishing date	2022-04-03
Publishing country	England
Document type	Journal Article
ZDB-ID	1213261-5
ISSN	1521-0464 ; 1071-7544
ISSN (online)	1521-0464
ISSN	1071-7544
DOI	10.1080/10717544.2022.2058650
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