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Article ; Online: The Spatio-Temporal Patterns and Driving Forces of Land Use in the Context of Urbanization in China

Yuxi Liu / Cheng Huang / Lvshui Zhang

International Journal of Environmental Research and Public Health, Vol 20, Iss 2330, p

Evidence from Nanchang City

2023 Volume 2330

Abstract: Land use change has been one of the common problems in the context of urbanization in China. Social economy and land use interact with each other, and it is especially important for human society to adhere to sustainable development, and to deal with the ...

Abstract	Land use change has been one of the common problems in the context of urbanization in China. Social economy and land use interact with each other, and it is especially important for human society to adhere to sustainable development, and to deal with the contradictory relationship between the social–economic needs and land use change. The objectives of this study are: (1) Obtain time-series land-use classification data and its spatial distribution in Nanchang City; (2) Identify the characteristics and driving force of spatial–temporal land use changes in Nanchang City from 2000 to 2020; (3) Discuss the relationship between the urban expansion and social economy in Nanchang City. The results show that the spatial distribution of land use in Nanchang City has changed significantly from 2000 to 2020, and the largest area of land-use type in Nanchang City has been cropland. The cropland has continuously declined, and the urban area has increased significantly. A lot of cropland has been transformed into urban areas, and land use degree in Nanchang City has significantly increased. The spatial pattern of land use has greatly changed, and the city spatial pattern has become more aggregated, while the spatial distribution of cropland, forest and grassland has become more fragmented. Moreover, there has been an obvious correlation between social-economic development and the level of land use, and GDP has been the main driver of land use change. The central urban area of Nanchang city has been the main hotspot of land use change.
Keywords	land use change ; drivers ; urban expansion ; landscape ; Medicine ; R
Subject code	710 ; 910
Language	English
Publishing date	2023-01-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Scenario analysis of transportation carbon emissions in China based on machine learning and deep neural network models

Jianxin Tang / Rizhao Gong / Huilin Wang / Yuxi Liu

Environmental Research Letters, Vol 18, Iss 6, p

2023 Volume 064018

Abstract: Coping with the relation between the increase in carbon emissions and energy consumption in the transportation sector is a pressing issue today. Machine learning and deep neural networks were used in this study to explore the influential factors and ... ...

Abstract	Coping with the relation between the increase in carbon emissions and energy consumption in the transportation sector is a pressing issue today. Machine learning and deep neural networks were used in this study to explore the influential factors and trends in future transportation carbon emissions. First, the least absolute shrinkage and selection operator (LASSO) regression was adopted to screen out the key influencing factors in transportation carbon emissions. Second, the prediction performance of the long short-term memory (LSTM) network, generalized regress neural network, and back propagation (BP) network were compared, and an improved LSTM optimized by the sparrow search algorithm was proposed. Third, LASSO-SSA-LSTM was used to predict the transportation sector’s future carbon emissions trends under different scenarios. The results suggested that transportation carbon emissions in China presented a trend of ‘rapid increase—fluctuating decrease—continuous increase’ from 2010 to 2019. Although the main determinant in curbing the rising rate of carbon emissions effectively is the continuous development of renewable energy technology, the variation in transportation carbon emissions in China under eight scenarios showed significant differences. Generally, systemic changes and innovations are crucial to accommodate China’s future low-carbon and sustainable transportation development.
Keywords	transportation carbon emissions ; LASSO regression ; SSA-LSTM ; scenario analysis ; Environmental technology. Sanitary engineering ; TD1-1066 ; Environmental sciences ; GE1-350 ; Science ; Q ; Physics ; QC1-999
Subject code	550
Language	English
Publishing date	2023-01-01T00:00:00Z
Publisher	IOP Publishing
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: The Association of Perceived Neighbourhood Environment and Subjective Wellbeing in Migrant Older Adults

Yuxi Liu / Huanting Liu / Qin Chen / Junhui Xiao / Chonghua Wan

International Journal of Environmental Research and Public Health, Vol 20, Iss 4021, p

A Cross-Sectional Study Using Canonical Correlation Analysis

2023 Volume 4021

Abstract: Existing studies often focus on the impact of the neighbourhood environment on the subjective wellbeing (SWB) of the residents. Very few studies explore the impacts of the neighbourhood environment on migrant older adults. This study was conducted to ... ...

Abstract	Existing studies often focus on the impact of the neighbourhood environment on the subjective wellbeing (SWB) of the residents. Very few studies explore the impacts of the neighbourhood environment on migrant older adults. This study was conducted to investigate the correlations between perceived neighbourhood environment (PNE) and SWB among migrant older adults. A cross-sectional design was adopted. Data were collected from 470 migrant older adults in Dongguan, China. General characteristics, levels of SWB, and PNE were collected via a self-reported questionnaire. Canonical correlation analysis was performed to evaluate the relationship between PNE and SWB. These variables accounted for 44.1% and 53.0% of the variance, respectively. Neighbourhood relations, neighbourhood trust, and similar values in social cohesion made the most important contributions correlated with positive emotion and positive experience. A link between SWB and walkable neighbourhoods characterized by opportunities and facilities for physical activities with other people walking or exercising in their community, is positively associated with positive emotions. Our findings suggest that migrant older adults have a good walkable environment and social cohesion in neighbourhoods positively correlated with their subjective wellbeing. Therefore, the government should provide a more robust activity space for neighbourhoods and build an inclusive community for older adults.
Keywords	subjective wellbeing ; perceived neighbourhood environment ; migrant older adults ; Medicine ; R
Subject code	300
Language	English
Publishing date	2023-02-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: GMR-Net

Zixuan Zhang / Xuan Sun / Yuxi Liu

Remote Sensing, Vol 14, Iss 5476, p

Road-Extraction Network Based on Fusion of Local and Global Information

2022 Volume 5476

Abstract: Road extraction from high-resolution remote-sensing images has high application values in various fields. However, such work is susceptible to the influence of the surrounding environment due to the diverse slenderness and complex connectivity of roads, ... ...

Abstract	Road extraction from high-resolution remote-sensing images has high application values in various fields. However, such work is susceptible to the influence of the surrounding environment due to the diverse slenderness and complex connectivity of roads, leading to false judgment and omission during extraction. To solve this problem, a road-extraction network, the global attention multi-path dilated convolution gated refinement Network (GMR-Net), is proposed. The GMR-Net is facilitated by both local and global information. A residual module with an attention mechanism is first designed to obtain global and other aggregate information for each location’s features. Then, a multi-path dilated convolution (MDC) approach is used to extract road features at different scales, i.e., to achieve multi-scale road feature extraction. Finally, gated refinement units (GR) are proposed to filter out ambiguous features for the gradual refinement of details. Multiple road-extraction methods are compared in this study using the Deep-Globe and Massachusetts datasets. Experiments on these two datasets demonstrate that the proposed method achieves F1-scores of 87.38 and 85.70%, respectively, outperforming other approaches on segmentation accuracy and generalization ability.
Keywords	road extraction ; attention mechanism ; multi-scale feature ; local and global information ; Science ; Q
Subject code	006
Language	English
Publishing date	2022-10-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Determinants of subjective well-being among migrant and local elderly in China: a cross-sectional study.

Yuxi, Liu / Ingviya, Thammasin / Sangthong, Rassamee / Wan, Chonghua

BMJ open

2022 Volume 12, Issue 6, Page(s) e060628

Abstract: Objectives: The study aimed to examine the association between individual and community levels in relation to subjective well-being (SWB) among the migrant and local elderly. It particularly focuses on the extent to which and the ways in which the ... ...

Abstract	Objectives: The study aimed to examine the association between individual and community levels in relation to subjective well-being (SWB) among the migrant and local elderly. It particularly focuses on the extent to which and the ways in which the residential environment of migrant and local elderly influences their SWB. Design: A cross-sectional study. Setting: Our study was conducted in Dongguan City, China. Participants: Two groups of elderly (aged Main outcome measures: SWB was assessed by the Memorial University of Newfoundland Scale of Happiness. Results: The community-level health facility density had a positive association with SWB (B=0.38, p<0.01), whereas the financial facility density had a negative association (B=-0.42, p<0.01). The density of health and financial facilities affected the local elderly more than the migrant elderly. Social cohesion is an aspect of the social environment of the community that influenced elders' SWB (B=0.72, p<0.001). Conclusions: The primary determinants of SWB for both the migrant and local elderly included individual, societal and environmental factors.
MeSH term(s)	Aged ; China ; Cross-Sectional Studies ; Happiness ; Humans ; Social Environment ; Transients and Migrants
Language	English
Publishing date	2022-06-30
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2599832-8
ISSN	2044-6055 ; 2044-6055
ISSN (online)	2044-6055
ISSN	2044-6055
DOI	10.1136/bmjopen-2021-060628
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Urban Spatial Structure and Water Ecological Footprint

Yuxi Liu / Rizhao Gong / Wenzhong Ye / Changsheng Jin / Jianxin Tang

Sustainability, Vol 14, Iss 13960, p

Empirical Analysis of the Urban Agglomerations in China

2022 Volume 13960

Abstract: Focusing on the water conservation of China’s urban agglomerations (UAs), panel data covering 92 cities in the top five agglomerations from 2006 to 2020 are used to study the relationship between the spatial structure of UAs and the water ecological ... ...

Abstract	Focusing on the water conservation of China’s urban agglomerations (UAs), panel data covering 92 cities in the top five agglomerations from 2006 to 2020 are used to study the relationship between the spatial structure of UAs and the water ecological footprint (WEF) of their cities. WEFs and spatial structures are measured by the ecological footprint models and the rank-size law, respectively. Furthermore, the effects of spatial structure on WEF are estimated through the fixed-effects (FE) model with instrumental variables (IVs). Results suggest that the concentricity of the spatial structure has a nonlinear impact on the WEF, in that as the spatial structure moves away from polycentricity, the WEF first declines and then rises. By reducing the WEF through concentrated development, cities with a large proportion of production WEF or a large population can enjoy more benefits. Therefore, promoting the balanced development of JJJ and PRD and enhancing the role of the growth pole in CY and YRMR can help the water conservation of most cities. Moreover, considering household water use and small-population cities in other water-saving policies can serve as a policy reference in the future.
Keywords	urban spatial structure ; water ecological footprint ; urban agglomeration ; nonlinear effects ; regulating effects ; sustainable development ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
Subject code	720
Language	English
Publishing date	2022-10-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Paths Study on Knowledge Convergence and Development in Computational Social Science

Yuxi Liu / Xin Feng / Yue Zhang / Ying Kong / Rongyao Yang

Complexity, Vol

Data Metric Analysis Based on Web of Science

2022 Volume 2022

Abstract: Computational social science, as an emerging interdisciplinary discipline, is a field ushered in by long-term development of traditional social science. It is committed to supplying data thinking, resources, and analytics to study human social behavior ... ...

Abstract	Computational social science, as an emerging interdisciplinary discipline, is a field ushered in by long-term development of traditional social science. It is committed to supplying data thinking, resources, and analytics to study human social behavior and social operation laws to accurately grasp and judge the developing path of the discipline, which is of great significance to promote the innovation and development of social sciences. This study is to conduct a systematic quantitative analysis from a bibliometric perspective, aiming to provide a reference for scholars to explore the paths and changing rules in the field. We use the relevant literature in Web of Science as the dataset. After eliminating journal calls and irrelevant literature, R language and SciMAT tools are used to visualize and analyze the number of articles, keyword clustering, keyword cooccurrence network, and theme evolution, so as to summarize and sort out the paths of computational social science research. The study found that the annual volume of publications has been gradually increasing and will probably remain active in the next few years with high productivity. Subject themes in different periods are diversified, and the evolutionary relationship is found complex as well. Besides, as a cross discipline, scientific knowledge from different fields cross collides and couples with each other in the big data environment, changing the traditional concept of computational social science and forming a new development path. Recently, the emergence of “big data+” has promoted the rise of new subject areas, making the development of new disciplines a reality.
Keywords	Electronic computers. Computer science ; QA75.5-76.95
Subject code	001
Language	English
Publishing date	2022-01-01T00:00:00Z
Publisher	Hindawi-Wiley
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Development and validation of the systemic lupus erythematous scale amongst the system of quality of life instruments for chronic diseases QLICD-SLE (V2.0)

Yuxi Liu / Jiaqi Zhang / Honghong Xue / Mingyang Chen / Tong Xie / Chonghua Wan

Health and Quality of Life Outcomes, Vol 21, Iss 1, Pp 1-

2023 Volume 12

Abstract: Abstract Objective The present study is aimed to develop and validate a quality of life scale for systemic lupus erythematosus (SLE) patients with Chinese cultural background, QLICD-SLE (V2.0). Methods The QLICD-SLE (V2.0) was developed using a ... ...

Abstract	Abstract Objective The present study is aimed to develop and validate a quality of life scale for systemic lupus erythematosus (SLE) patients with Chinese cultural background, QLICD-SLE (V2.0). Methods The QLICD-SLE (V2.0) was developed using a systematic approach that involved focus groups, nominal discussions, and pilot testing. A total of 428 SLE patients participated in the scale's assessment. Validity was examined through qualitative analysis, item domain correlation, multidimensional scaling, and factor analysis. Reliability was assessed using Pearson's correlation and Cronbach's alpha coefficients. To evaluate responsiveness, paired T-tests were conducted to compare pre- and post-treatment measurements with the standardised response mean (SRM) being calculated. Results Correlation and factor analyses demonstrated strong construct validity. When using SF-36 as criteria, the correlation between various domains of QLICD-SLE and SF-36 ranged from 0.55 to 0.70. Test–retest correlation coefficients exceeded 0.71, and Cronbach’s alpha coefficients for both measurements in each domain were greater than or equal to 0.75. T-test results showed that both the overall score and most facet scores within each domain showed statistically significant changes after treatment (P < 0.05), indicating reasonable responsiveness. Conclusion The QLICD-SLE (V2.0) appears to be a valid and reliable instrument for assessing the quality of life in patients with SLE.
Keywords	Computer applications to medicine. Medical informatics ; R858-859.7
Subject code	610
Language	English
Publishing date	2023-11-01T00:00:00Z
Publisher	BMC
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: A cardiac malignant primary tumor: Left atrium myxosarcoma-A case report.

Junze, Zheng / Yuxi, Liu / Jiande, Tang / Xuezhe, Wei / Yequan, Sun

Journal of clinical ultrasound : JCU

2022 Volume 50, Issue 9, Page(s) 1262–1267

Abstract: Myxosarcoma only accounts for a very small proportion of primary malignant tumors of the heart. The disease has no specificity in clinical manifestations or features on medical images. In this case study, we report about a middle-aged female patient ... ...

Abstract	Myxosarcoma only accounts for a very small proportion of primary malignant tumors of the heart. The disease has no specificity in clinical manifestations or features on medical images. In this case study, we report about a middle-aged female patient afflicted with cardiac myxosarcoma. The initial transthoracic echocardiography of the patient revealed a cardiac myxoma. However, the postoperative histopathology confirmed the presence of a malignant cardiac myxosarcoma. Post-surgery follow-up imaging examinations revealed local recurrence in the left atrium as well as soft-tissue and bone metastases. The recurrent tumor and metastases were subsequently treated with chemotherapy and radiotherapy. However, the tumor did not respond to treatment and the disease progressed.
MeSH term(s)	Middle Aged ; Female ; Humans ; Myxosarcoma/diagnostic imaging ; Myxosarcoma/pathology ; Myxosarcoma/secondary ; Heart Neoplasms/pathology ; Myxoma/diagnostic imaging ; Heart Atria/diagnostic imaging ; Heart Atria/pathology ; Echocardiography ; Mediastinal Neoplasms ; Thymus Neoplasms
Language	English
Publishing date	2022-07-28
Publishing country	United States
Document type	Case Reports
ZDB-ID	189393-2
ISSN	1097-0096 ; 0091-2751
ISSN (online)	1097-0096
ISSN	0091-2751
DOI	10.1002/jcu.23275
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Short-form development of the specific module of the QLICD-CRF(V2.0) for assessing the quality of life of patients with chronic renal failure

Zhengqin Xiao / Yuxi Liu / Daniel Yee-Tak Fong / Xinping Huang / Min Weng / Chonghua Wan

BMC Medical Research Methodology, Vol 22, Iss 1, Pp 1-

2022 Volume 8

Abstract: Abstract Background A short instrument would enhance the viability of a study. Therefore, we aimed to shorten the specific module (SPD-10) of the Quality of Life Instrument for Chronic Diseases - Chronic Renal Failure (QLICD-CRF) for assessing the ... ...

Abstract	Abstract Background A short instrument would enhance the viability of a study. Therefore, we aimed to shorten the specific module (SPD-10) of the Quality of Life Instrument for Chronic Diseases - Chronic Renal Failure (QLICD-CRF) for assessing the quality of life of patients with chronic renal failure. Methods The 10-item SPD-10 was self-administered to 164 patients with chronic renal failure. A shortened form was first obtained by a tandem use of the classical test theory (CTT), the generalizability theory (GT), and the item response theory (IRT). In addition, we also shortened the SPD-10 by the Optimal Test Assembly (OTA). Results Both the tandem use of GT, CTT and IRT, and the OTA derived the same 7-item shortened version (SPD-7). It included items CRF1, CRF2, CRF3, CRF4, CRF6, CRF8, and CRF9 of the SPD-10. The SPD-7 had a Cronbach alpha of 0.78. The correlation coefficients of its total and factor scores with those of the SPD-10 were 0.96 and 0.98, respectively. Confirmatory factor analysis confirmed the unidimensional structure of the SPD-7, with the comparative fit index=0.96, the Tucker-Lewis index=0.94, and the root mean square error of approximation=0.09. Conclusion The short-form SPD-7 is reliable and valid for assessing the impact of clinical symptoms and side effects on the quality of life of patients with chronic renal failure. It is an efficient option without compromising the measurement performance of the SPD-10.
Keywords	Scale reduction ; Generalizability theory ; Classical test theory ; Item response theory ; Optimal test assembly ; Medicine (General) ; R5-920
Subject code	616
Language	English
Publishing date	2022-11-01T00:00:00Z
Publisher	BMC
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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