Xian Liu
Dados Biográficos
| ID | 3703700 |
|---|---|
| NOME | Xian Liu |
| PRENOMES | Xian |
| SOBRENOME | Liu |
| ASSINATURA | LIU X |
| AFILIAÇÕES | University of Michigan |
| ORCID | 0000-0002-4247-6088 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 29 |
| TOTAL DE CITAÇÕES | 78 |
| TOTAL COMO AUTOR | 29 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 1990 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2026 |
| ÍNDICE H | 5 |
Exploring bus service demand in emerging business formats
Longitudinal development of career adaptability in pre-service teachers
Individuals with high career adaptability tend to navigate career transitions more smoothly. To address the challenges associated with pre-service teachers transitioning from students to teachers, it is essential to explore the development of their career adaptability. This study aims to investigate the growth of four dimensions of career adaptability in pre-service teachers—career concern, career control, career curiosity, and career confidence—…
How to close the learning circle? Students’ perspectives on how programmatic assessment influences self-regulated learning in a global online programme
Programmatic assessment (PA) is widely implemented in higher education and is theorised to support self-regulated learning (SRL). However, its mechanisms remain unclear. This study explored students’ perceptions of PA’s impact on SRL in a part-time, predominantly online Master’s programme for healthcare professionals worldwide. A pragmatic exploratory mixed-methods approach was employed, integrating quantitative data (survey, N = 46) and qualitat…
Stepping stones to success
Untargeted urine metabolomics and machine learning provide potential metabolic signatures in children with autism spectrum disorder
Significant urinary metabolites, including prostaglandin E2, phosphonic acid, lysine, threonine, and phenylalanine, exhibit associations with autism. Additionally, the involvement of the phosphatidylinositol and inositol phosphate pathways suggests their potential role in the pathophysiology of autism
Eliminating mother-to-child transmission of hepatitis B virus
Background While mother-to-child transmission (MTCT) of hepatitis B virus (HBV) remains a significant challenge in China, research investigating the effectiveness of the September 2017 pilot program to eliminate MTCT of HIV, syphilis, and HBV is limited. Baoan district, which has a higher-than-average rate of hepatitis B infection among pregnant women and strong support from the government, was one of six national pilot districts selected for the…
Criminal enforcement and environmental performance
Simulating multiple scenarios of land use/cover change using a coupled model to capture ecological and economic effects
The conflict between the demands of ecological protection and economic development is increasingly prominent. Land use change is sensitive to whether economic or ecological profits dominate, and prediction of future land use changes has become an important scientific issue. This article constructs a coupled model that comprises the grey model (GM), the fuzzy multiple objective linear programming model (FMOLP) and the future land use simulation mo…
Autistic clinical profiles, age at first concern, and diagnosis among children with autism spectrum disorder
Language delay, rather than other symptoms, promoted an earlier diagnostic age. Among male autistic children or children from families with higher socioeconomic levels, language delay was most significantly associated with an earlier age of diagnosis. Cognitive delay, or adaptive delay, was associated with a later age at diagnosis and presented only in autistic children from families with lower socioeconomic levels. There may be sex or socioecono…
Tourist risk assessment of pollen allergy in tourism attractions
Pollen allergy has already been an increasingly prominent ecosystem disservice in tourism attractions. However, few studies have assessed the tourist risk of pollen allergy through integrating multidisciplinary knowledge of ecology, medicine, phenology, and risk management. Basing on the conceptual framework of risk assessment proposed by UNISDR, we first established an index system of pollen-allergy risk for tourists in attractions and outlined …
Designing Physical Education Courses Based on Musical Environment
The design of physical education (PE) lessons is an ongoing research project that encompasses elements such as teaching ideas, teaching objectives and teaching methods. Music is regarded as the pinnacle form of beauty and combining it with PE not only improves the effectiveness of PE lessons, but also increases the artistry of PE lessons. The purpose of this study is to examine the combination of music and cycling lessons in order to determine th…
Activation de lexèmes de la L2 et alternance codique dans la production écrite en L3
Notre recherche vise à comprendre l’interférence translinguistique et les occurrences d’alternance codique dans la production écrite en français (L3) chez des apprenants chinois dont la L2 est l’anglais. Nous avons réalisé une enquête auprès de 137 étudiants en cursus français-anglais dans quatre universités chinoises. À travers une analyse du discours et des contenus de production écrite des étudiants et en nous appuyant sur des théories de l’ac…
Prevalence and Characteristics of Social Withdrawal Tendency Among 3–24 Months in China
Background: Sustained withdrawal behavior is an obstacle for child development. The present study aimed to preliminarily evaluate the prevalence of social withdrawal tendency in young Chinese children using the Alarm Distress Baby Scale (ADBB) and describe the characteristics of socially withdrawn children. Method: This was a cross-sectional analysis as part of a prospective cohort study. A total of 114 children aged 3-24 months were included. Th…
New problems of food security in Northwest China
China's food security has met standards set by the United Nations Food and Agriculture Organization. However, this development is based on excessive resource input and sacrificing the environment. There are few studies on how to evaluate food production systems with a sustainability framework. In order to guarantee the food security in Northwest China, and realize the sustainable development of agricultural production, this study was carried out.…
Perinatal Depression of Exposed Maternal Women in the Covid-19 Pandemic in Wuhan, China
Objective: This study aims to investigate perinatal depression in women who gave birth during the COVID-19 pandemic in Wuhan, and to evaluate the effect of the pandemic on perinatal depression prevalence. Methods: A cross-sectional investigation was conducted into women hospitalized for delivery in Hubei Maternity and Child Healthcare Hospital from December 31, 2019 to March 22, 2020, a period which encompasses the entire time frame of the COVID-…
Mental Health Utilization Patterns During a Stepped, Collaborative Care Effectiveness Trial for PTSD and Depression in the Military Health System
BACKGROUND: Integrated health care models aim to improve access and continuity of mental health services in general medical settings. STEPS-UP is a stepped, centrally assisted collaborative care model designed to improve posttraumatic stress disorder (PTSD) and depression care by providing the appropriate intensity and type of care based on patient characteristics and clinical complexity. STEPS-UP demonstrated improved PTSD and depression outcome…
Randomized Effectiveness Trial of a Brief Course of Acupuncture for Posttraumatic Stress Disorder
BACKGROUND: Initial posttraumatic stress disorder (PTSD) care is often delayed and many with PTSD go untreated. Acupuncture appears to be a safe, potentially nonstigmatizing treatment that reduces symptoms of anxiety, depression, and chronic pain, but little is known about its effect on PTSD. METHODS: Fifty-five service members meeting research diagnostic criteria for PTSD were randomized to usual PTSD care (UPC) plus eight 60-minute sessions of …
Midlife Trends in Activities and Disability
Activities are more dynamic than disability, and time use is associated with disability. Taken together, the results encourage broader activities in disability measures to capture better disability's scope and dynamics
Survival Convergence and the Preceding Mortality Crossover for Two Population Subgroups
The Effect of Veteran Status on Mortality among Older Americans and its Pathways
Somatic Symptoms in Gulf War Mortuary Workers
OBJECTIVE: The objective of this article is to examine the relationship between exposures to the dead and the development of somatic symptoms. METHODS: We studied the pre-post responses of 352 military men and women who worked in the mortuary that received the dead from the Persian Gulf War (Operation Desert Storm) in 1990 to 1991. Symptoms of somatization were measured before and after exposure to the dead. The respondents were volunteers and no…
Relationship of Physical Symptoms to Posttraumatic Stress Disorder Among Veterans Seeking Care for Gulf War-Related Health Concerns
OBJECTIVES: Studies of the relationship of posttraumatic stress disorder (PTSD) to physical symptoms in war veterans consistently show a positive relationship. However, traumatic experiences causing PTSD may correlate with other war exposures and medical illnesses potentially accounting for those symptoms. METHODS: We analyzed data obtained from 21,244 Gulf War veterans seeking care for war-related health concerns to assess the relationship of PT…
Development of a Structural Hazard Rate Model in Sociological Research
In this article, the author presents and develops a structural hazard rate model that takes into account the interrelationships of covariates and their effects on the hazard rate. In particular, both a full model and a set of sequential reduced-form equations are specified. Whereas the full model estimates only the direct effects of exogenous covariates on the hazard rate, the final reduced-form equation measures their total effects. From two adj…
Educational attainment and transitions in functional status among older Taiwanese
Despite considerable research examining the influence of socioeconomic status on health, few studies have considered this relationship as it pertains to older adults in non-Western societies. We attempt to ascertain the influence of education on changes in physical functioning in a rapidly developing country. Data come from the 1989 Survey of Health and Living Status of the Elderly in Taiwan and a follow-up interview in 1993 (N = 4,049, age = 60+…
Modeling Multidimensional Transitions in Health Care
Conventional multistate life table accounting procedures are based on theoretical assumptions that are appropriate primarily for demographic events. Applying these approaches to the area of health care, however, may lead to serious biases given the frequent turnovers of events such as hospitalization and institutionalization. In addition, traditional approaches have been criticized for failing to capture population heterogeneity. This research in…
Flows of social support and health status among older persons in China
Educational attainment and transitions in functional status among older Taiwanese
Despite considerable research examining the influence of socioeconomic status on health, few studies have considered this relationship as it pertains to older adults in non-Western societies. We attempt to ascertain the influence of education on changes in physical functioning in a rapidly developing country. Data come from the 1989 Survey of Health and Living Status of the Elderly in Taiwan and a follow-up interview in 1993 (N = 4,049, age = 60+…
Gauging the Validity of Responses to Questions on Family Size Preferences in China
The article discusses the issue of the accuracy of survey data on family size preferences in China. Concern about poor sampling design non-response errors and response errors is heightened by Chinas firm policy on low fertility and the adverse repercussions when the policy is challenged. A comparison of 2 concurrent studies conducted on the same population in and around Shanghai indicates that Shanghai women underreport their desired family size …
Transitions in cognitive status among the aged in Japan
The Effect of Veteran Status on Mortality among Older Americans and its Pathways
Midlife Trends in Activities and Disability
Activities are more dynamic than disability, and time use is associated with disability. Taken together, the results encourage broader activities in disability measures to capture better disability's scope and dynamics
Survival Convergence and the Preceding Mortality Crossover for Two Population Subgroups
Development of a Structural Hazard Rate Model in Sociological Research
In this article, the author presents and develops a structural hazard rate model that takes into account the interrelationships of covariates and their effects on the hazard rate. In particular, both a full model and a set of sequential reduced-form equations are specified. Whereas the full model estimates only the direct effects of exogenous covariates on the hazard rate, the final reduced-form equation measures their total effects. From two adj…
Modeling Multidimensional Transitions in Health Care
Conventional multistate life table accounting procedures are based on theoretical assumptions that are appropriate primarily for demographic events. Applying these approaches to the area of health care, however, may lead to serious biases given the frequent turnovers of events such as hospitalization and institutionalization. In addition, traditional approaches have been criticized for failing to capture population heterogeneity. This research in…
Gauging the Validity of Responses to Questions on Family Size Preferences in China
The article discusses the issue of the accuracy of survey data on family size preferences in China. Concern about poor sampling design non-response errors and response errors is heightened by Chinas firm policy on low fertility and the adverse repercussions when the policy is challenged. A comparison of 2 concurrent studies conducted on the same population in and around Shanghai indicates that Shanghai women underreport their desired family size …
Flows of social support and health status among older persons in China
Probabilities and Lifetime Durations of Short-Stay Hospital and Nursing Home Use in the United States, 1985
OBJECTIVES: The authors present a four-state increment-decrement life table model from which estimates of the risk and duration of nursing home and short-term hospital stays in the United States are derived. METHODS: Survival analysis was used to generate various transition probabilities while controlling for population heterogeneity. In addition, a newly developed algorithm was applied to construct the multistate life table specifically for heal…
Transitions in cognitive status among the aged in Japan
Modeling Multidimensional Transitions in Health Care
Conventional multistate life table accounting procedures are based on theoretical assumptions that are appropriate primarily for demographic events. Applying these approaches to the area of health care, however, may lead to serious biases given the frequent turnovers of events such as hospitalization and institutionalization. In addition, traditional approaches have been criticized for failing to capture population heterogeneity. This research in…
Educational attainment and transitions in functional status among older Taiwanese
Despite considerable research examining the influence of socioeconomic status on health, few studies have considered this relationship as it pertains to older adults in non-Western societies. We attempt to ascertain the influence of education on changes in physical functioning in a rapidly developing country. Data come from the 1989 Survey of Health and Living Status of the Elderly in Taiwan and a follow-up interview in 1993 (N = 4,049, age = 60+…
Relationship of Physical Symptoms to Posttraumatic Stress Disorder Among Veterans Seeking Care for Gulf War-Related Health Concerns
OBJECTIVES: Studies of the relationship of posttraumatic stress disorder (PTSD) to physical symptoms in war veterans consistently show a positive relationship. However, traumatic experiences causing PTSD may correlate with other war exposures and medical illnesses potentially accounting for those symptoms. METHODS: We analyzed data obtained from 21,244 Gulf War veterans seeking care for war-related health concerns to assess the relationship of PT…
Development of a Structural Hazard Rate Model in Sociological Research
In this article, the author presents and develops a structural hazard rate model that takes into account the interrelationships of covariates and their effects on the hazard rate. In particular, both a full model and a set of sequential reduced-form equations are specified. Whereas the full model estimates only the direct effects of exogenous covariates on the hazard rate, the final reduced-form equation measures their total effects. From two adj…
Somatic Symptoms in Gulf War Mortuary Workers
OBJECTIVE: The objective of this article is to examine the relationship between exposures to the dead and the development of somatic symptoms. METHODS: We studied the pre-post responses of 352 military men and women who worked in the mortuary that received the dead from the Persian Gulf War (Operation Desert Storm) in 1990 to 1991. Symptoms of somatization were measured before and after exposure to the dead. The respondents were volunteers and no…
The Effect of Veteran Status on Mortality among Older Americans and its Pathways
Survival Convergence and the Preceding Mortality Crossover for Two Population Subgroups
Midlife Trends in Activities and Disability
Activities are more dynamic than disability, and time use is associated with disability. Taken together, the results encourage broader activities in disability measures to capture better disability's scope and dynamics
Randomized Effectiveness Trial of a Brief Course of Acupuncture for Posttraumatic Stress Disorder
BACKGROUND: Initial posttraumatic stress disorder (PTSD) care is often delayed and many with PTSD go untreated. Acupuncture appears to be a safe, potentially nonstigmatizing treatment that reduces symptoms of anxiety, depression, and chronic pain, but little is known about its effect on PTSD. METHODS: Fifty-five service members meeting research diagnostic criteria for PTSD were randomized to usual PTSD care (UPC) plus eight 60-minute sessions of …
Mental Health Utilization Patterns During a Stepped, Collaborative Care Effectiveness Trial for PTSD and Depression in the Military Health System
BACKGROUND: Integrated health care models aim to improve access and continuity of mental health services in general medical settings. STEPS-UP is a stepped, centrally assisted collaborative care model designed to improve posttraumatic stress disorder (PTSD) and depression care by providing the appropriate intensity and type of care based on patient characteristics and clinical complexity. STEPS-UP demonstrated improved PTSD and depression outcome…
New problems of food security in Northwest China
China's food security has met standards set by the United Nations Food and Agriculture Organization. However, this development is based on excessive resource input and sacrificing the environment. There are few studies on how to evaluate food production systems with a sustainability framework. In order to guarantee the food security in Northwest China, and realize the sustainable development of agricultural production, this study was carried out.…
Perinatal Depression of Exposed Maternal Women in the Covid-19 Pandemic in Wuhan, China
Objective: This study aims to investigate perinatal depression in women who gave birth during the COVID-19 pandemic in Wuhan, and to evaluate the effect of the pandemic on perinatal depression prevalence. Methods: A cross-sectional investigation was conducted into women hospitalized for delivery in Hubei Maternity and Child Healthcare Hospital from December 31, 2019 to March 22, 2020, a period which encompasses the entire time frame of the COVID-…
Activation de lexèmes de la L2 et alternance codique dans la production écrite en L3
Notre recherche vise à comprendre l’interférence translinguistique et les occurrences d’alternance codique dans la production écrite en français (L3) chez des apprenants chinois dont la L2 est l’anglais. Nous avons réalisé une enquête auprès de 137 étudiants en cursus français-anglais dans quatre universités chinoises. À travers une analyse du discours et des contenus de production écrite des étudiants et en nous appuyant sur des théories de l’ac…
Prevalence and Characteristics of Social Withdrawal Tendency Among 3–24 Months in China
Background: Sustained withdrawal behavior is an obstacle for child development. The present study aimed to preliminarily evaluate the prevalence of social withdrawal tendency in young Chinese children using the Alarm Distress Baby Scale (ADBB) and describe the characteristics of socially withdrawn children. Method: This was a cross-sectional analysis as part of a prospective cohort study. A total of 114 children aged 3-24 months were included. Th…
Tourist risk assessment of pollen allergy in tourism attractions
Pollen allergy has already been an increasingly prominent ecosystem disservice in tourism attractions. However, few studies have assessed the tourist risk of pollen allergy through integrating multidisciplinary knowledge of ecology, medicine, phenology, and risk management. Basing on the conceptual framework of risk assessment proposed by UNISDR, we first established an index system of pollen-allergy risk for tourists in attractions and outlined …
Designing Physical Education Courses Based on Musical Environment
The design of physical education (PE) lessons is an ongoing research project that encompasses elements such as teaching ideas, teaching objectives and teaching methods. Music is regarded as the pinnacle form of beauty and combining it with PE not only improves the effectiveness of PE lessons, but also increases the artistry of PE lessons. The purpose of this study is to examine the combination of music and cycling lessons in order to determine th…
Simulating multiple scenarios of land use/cover change using a coupled model to capture ecological and economic effects
The conflict between the demands of ecological protection and economic development is increasingly prominent. Land use change is sensitive to whether economic or ecological profits dominate, and prediction of future land use changes has become an important scientific issue. This article constructs a coupled model that comprises the grey model (GM), the fuzzy multiple objective linear programming model (FMOLP) and the future land use simulation mo…
Autistic clinical profiles, age at first concern, and diagnosis among children with autism spectrum disorder
Language delay, rather than other symptoms, promoted an earlier diagnostic age. Among male autistic children or children from families with higher socioeconomic levels, language delay was most significantly associated with an earlier age of diagnosis. Cognitive delay, or adaptive delay, was associated with a later age at diagnosis and presented only in autistic children from families with lower socioeconomic levels. There may be sex or socioecono…
Untargeted urine metabolomics and machine learning provide potential metabolic signatures in children with autism spectrum disorder
Significant urinary metabolites, including prostaglandin E2, phosphonic acid, lysine, threonine, and phenylalanine, exhibit associations with autism. Additionally, the involvement of the phosphatidylinositol and inositol phosphate pathways suggests their potential role in the pathophysiology of autism
Eliminating mother-to-child transmission of hepatitis B virus
Background While mother-to-child transmission (MTCT) of hepatitis B virus (HBV) remains a significant challenge in China, research investigating the effectiveness of the September 2017 pilot program to eliminate MTCT of HIV, syphilis, and HBV is limited. Baoan district, which has a higher-than-average rate of hepatitis B infection among pregnant women and strong support from the government, was one of six national pilot districts selected for the…
Criminal enforcement and environmental performance
Medicine (18 obras) · Psychology (14 obras) · Psychiatry (12 obras) · Economics (9 obras) · Demography (7 obras) · Health disparities and outcomes (7 obras) · Population (7 obras) · Computer Science (6 obras) · Gerontology (6 obras) · Demography (5 obras)