Man Liu
Biographic Data
| ID | 7273956 |
|---|---|
| NAME | Man Liu |
| GIVEN NAMES | Man |
| FAMILY NAME | Liu |
| SIGNATURE | LIU M |
| AFFILIATIONS | China University of Geosciences (Beijing) |
| ORCID | 0000-0002-1390-7862 |
| VERIFIED | Yes |
| TOTAL WORKS | 24 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 24 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2010 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 0 |
Narcissistic leadership and job satisfaction of auditors: The role of leader-member exchange and work stress
Purpose The objective of this paper is to investigate the impact of narcissistic leadership on job satisfaction among Chinese auditors, while also investigating the mediating effects of leader-member exchange and work stress. Design/methodology/approach This study adopted a questionnaire survey data collection method and used structural equation modeling to analyze the data. The sample included 257 auditors from three major cities in China. Findi…
Diurnal variation and prediction method of floor fuel moisture content in a Pinus massoniana-dominated forest in Guizhou province, China
Fuel moisture content (FMC) on forest floor exhibits consistent diurnal fluctuations between daytime and night-time, and the construction of a high-precision prediction model is important for estimating the diurnal variation of forest fires and implementing scientific management strategies. In this study, typical fuel from a Pinus massoniana dominated forest in southwestern China was selected as the research object, and its moisture content was m…
The effect of health quotient and time management skills on self-management behavior and glycemic control among individuals with type 2 diabetes mellitus
Objective The aim of this study was to evaluate the present status of self-management behavior and glycemic control in individuals diagnosed with Type 2 Diabetes Mellitus (T2D), as well as to examine the impact of health quotient (HQ) and time management skills on both self-management behavior and glycemic control. Methods Between October 2022 and March 2023, a purposive sampling method had been utilized to select 215 participants with type T2D. …
Profiles of physical frailty, social frailty, and cognitive impairment among older adults in rural areas of China: A latent profile analysis
Background As China rapidly ages, it has now become a deeply aging society with the largest number of older individuals in the world. The issue is particularly severe in rural areas. With the aging population growing and the older population expanding, health problems are becoming more prevalent among older individuals, particularly frailty and cognitive impairments. This study aimed to identify the profiles of physical frailty, social frailty, a…
Self-awareness and career adaptability of new nurses in the oncology hospital: A chain mediating model of creative self-efficacy and work readiness
Associations between the geriatric nutritional risk index and the risk of and mortality associated with chronic kidney disease in older individuals
Malnutrition assessed by the GNRI was significantly and independently associated with the incidence of CKD. Moreover, CKD patients with malnutrition also have a high risk of mortality
Mediating role of psychological resilience between social support and negative emotions in nursing interns in the post‐Covid‐19 era: A cross‐sectional survey
Background The increasing burden of mental health problems continues in the post‐COVID‐19 era, and nursing interns were particularly likely to experience negative emotions during the pandemic. Both psychological resilience and social support affect negative emotion, but the relationship among the three has not been explored in nursing interns in the postpandemic era. Objectives To explore the current prevalence of negative emotions among nursing …
The association between physical activity and mental health in medical postgraduates in China during Covid-19 pandemic
We concluded that for Chinese postgraduate medical students, taking part in physical activity would depress negative emotions such as depression, anxiety, and stress, but improve their self-efficacy and resilience, which will benefit them in completing their studies and training
Machine learning methods based on probabilistic decision tree under the multi-valued preference environment
In the classification calculation, the data are sometimes not unique and there are different values and probabilities. Then, it is meaningful to develop the appropriate methods to make classification decision. To solve this issue, this paper proposes the machine learning methods based on a probabilistic decision tree (DT) under the multi-valued preference environment and the probabilistic multi-valued preference environment respectively for the d…
Early Transmission Dynamics in Wuhan, China, of Novel Coronavirus–Infected Pneumonia
BACKGROUND: The initial cases of novel coronavirus (2019-nCoV)-infected pneumonia (NCIP) occurred in Wuhan, Hubei Province, China, in December 2019 and January 2020. We analyzed data on the first 425 confirmed cases in Wuhan to determine the epidemiologic characteristics of NCIP. METHODS: We collected information on demographic characteristics, exposure history, and illness timelines of laboratory-confirmed cases of NCIP that had been reported by…
Vertical Distribution and Controlling Factors Exploration of Sc, V, Co, Ni, Mo and Ba in Six Soil Profiles of The Mun River Basin, Northeast Thailand
Exploring the enrichment and controlling factors of heavy metals in soils is essential because heavy metals can cause severe soil contamination and threaten human health when they are excessively enriched in soils. Soil samples (total 103) from six soil profiles (T1 to T6) in the Mun River Basin, Northeast Thailand, were collected for the analyses of the content of heavy metals, including Sc, V, Co, Ni, Mo, Ba. The average contents of soil heavy …
Spatial Variation and Source of Dissolved Heavy Metals in the Lancangjiang River, Southwest China
Dissolved heavy metals are not only the essential micronutrients, but also the toxic elements for human bodies. To investigate the heavy metal sources and assess the water quality of the Lancangjiang River, dissolved Cr, Ni, Cu, Zn, Mo, and Pb were detected in this study. The results show that dissolved Ni and Mo, Cr and Pb, and Cu and Zn were similarly distributed within the drainage basin. The correlation analysis exhibited that dissolved Ni an…
Fe, Rather Than Soil Organic Matter, as a Controlling Factor of Hg Distribution in Subsurface Forest Soil in an Iron Mining Area
To identify whether the iron (Fe) mining area in the Jiulongjiang River basin (JRB) has an influence on the mercury in the forest soil, the spatial distribution patterns of mercury's behavior on different controlling factors were analyzed, and a potential ecological risk assessment was done. A total of 107 soil samples were collected from two forest soil profiles, one profile near the Fe mining area and the other far from it. The soil near the mi…
Effects of Soil Properties on K Factor in the Granite and Limestone Regions of China
Soil erosion has become a serious ecological problem in many catchments. Soil erodibility K factor can be estimated based on a series of soil properties, however, the identification of dominant soil properties that affect K factor prediction at different soil types has been little concerned. In this study, 3 soil profiles from the Jiulongjiang River Catchment (JRC) of granite region in Fujian province and 18 soil profiles from the Chenqi Catchmen…
Hydrochemistry and Dissolved Inorganic Carbon (DIC) Cycling in a Tropical Agricultural River, Mun River Basin, Northeast Thailand
Dissolved inorganic carbon isotope composition (δ 13 C DIC ), together with major ion concentrations were measured in the Mun River and its tributaries in March 2018 to constrain the origins and cycling of dissolved inorganic carbon. In the surface water samples, the DIC content ranged from 185 to 5897 μmol/L (average of 1376 μmol/L), and the δ 13 C DIC of surface water ranged from -19.6‱ to -2.7‱. In spite of the high variability in DIC concentr…
Distribution and Contamination Assessment of Soil Heavy Metals in the Jiulongjiang River Catchment, Southeast China
A total of 63 soil samples were collected from three soil profiles (yellow soil, red loam, red soil) from Jiulongjiang river catchment to investigate the distribution, controlling factors, and toxic risks of heavy metals, including Cr, Mn, Fe, Cu, Zn, Cd, Pb, and Ni. The results showed that Cr and Cd in soils were enriched. The relationships between heavy metals and soil properties were assessed by principal component analysis. The results indica…
Impacts of Anthropogenic Changes on the Mun River Water: Insight from Spatio-Distributions and Relationship of C and N Species in Northeast Thailand
C and N species, including dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), dissolved organic nitrogen (DON), NO3 - and NH4+ contents in 57 river water samples collected from the Mun River of Thailand were measured to determine the relationships between these dissolved load species and their impacts on the environment. DOC values varied between 1.71 and 40.08 mg/L, averaging 11.14 mg/L; DON values ranged from 0.20 to 1.37 mg/L, w…
Distribution, Sources and Water Quality Evaluation of the Riverine Solutes: A Case Study in the Lancangjiang River Basin, Tibetan Plateau
To examine the chemical composition, potential sources of solutes, and water quality of Lancangjiang River, the concentrations of major ions (Ca 2+ , Mg 2+ , Na + , K + , HCO 3 - , SO 4 2- , Cl - and NO 3 - ) in 45 river water samples collected in July and August 2019 were determined. Ca 2+ and HCO 3 - are the predominant ions in river water. The extremely low K + and NO 3 - concentrations and the sparse population suggest that the anthropogenic …
Spatial Variation and Controlling Factors of H and O Isotopes in Lancang River Water, Southwest China
Climate changes and other human activities have substantially altered the hydrological cycle with respect to elevation. In this study, longitudinal patterns in the stable isotopic composition (δ 2 H and δ 18 O) of Lancang River water, originating from the Qinghai-Tibetan Plateau, are presented, and several controlling factors in the wet season are hypothesized. Lancang River water δ 2 H (-145.2‱ to -60.7‱) and δ 18 O (-18.51‱ to -8.49‱) were low …
The Mercury Behavior and Contamination in Soil Profiles in Mun River Basin, Northeast Thailand
To determine the geochemical characteristics and contamination of soil mercury in the Mun River basin, northeast Thailand, the vertical mercury distribution patterns and mercury contamination levels in six soil profiles under different land uses are studied. A total of 240 soil samples collected from agricultural land, abandoned agricultural land, and woodland were analyzed by an RA-915M mercury analyzer to determine the total mercury (THg) conte…
Hydro-Geochemistry of the River Water in the Jiulongjiang River Basin, Southeast China: Implications of Anthropogenic Inputs and Chemical Weathering
This study focuses on the chemical weathering process under the influence of human activities in the Jiulongjiang River basin, which is the most developed and heavily polluted area in southeast China. The average total dissolved solid (TDS) of the river water is 116.6 mg/L and total cation concentration ( TZ + ) is 1.5 meq/L. Calcium and HCO 3 - followed by Na + and SO 4 2 - constitute the main species in river waters. A mass balance based on cat…
Effects of Soil Aggregate Stability on Soil Organic Carbon and Nitrogen under Land Use Change in an Erodible Region in Southwest China
Soil aggregate stability can indicate soil quality, and affects soil organic carbon (SOC) and soil organic nitrogen (SON) sequestration. However, for erodible soils, the effects of soil aggregate stability on SOC and SON under land use change are not well known. In this study, soil aggregate distribution, SOC and SON content, soil aggregate stability, and soil erodibility were determined in the soils at different depths along the stages following…
Distribution, Sources, and Water Quality Assessment of Dissolved Heavy Metals in the Jiulongjiang River Water, Southeast China
In this study, the concentration of eight dissolved heavy metals (Ti, Cr, Mn, Fe, Ni, Mo, Sb, and Ba) in 42 water samples from the Jiulongjiang River, southeast China, were determined by inductively coupled plasma mass spectrometry (ICP-MS). Multivariate statistical methods, including correlation analysis (CA) and factor and principal component analysis (FA/PCA), were analyzed to identify the sources of the elements. Water quality index (WQI) and…
Pharmacokinetic properties of paeoniflorin, albiflorin and oxypaeoniflorin after oral gavage of extracts of Radix Paeoniae Rubra and Radix Paeoniae Alba in rats
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Pharmacokinetic properties of paeoniflorin, albiflorin and oxypaeoniflorin after oral gavage of extracts of Radix Paeoniae Rubra and Radix Paeoniae Alba in rats
Distribution, Sources, and Water Quality Assessment of Dissolved Heavy Metals in the Jiulongjiang River Water, Southeast China
In this study, the concentration of eight dissolved heavy metals (Ti, Cr, Mn, Fe, Ni, Mo, Sb, and Ba) in 42 water samples from the Jiulongjiang River, southeast China, were determined by inductively coupled plasma mass spectrometry (ICP-MS). Multivariate statistical methods, including correlation analysis (CA) and factor and principal component analysis (FA/PCA), were analyzed to identify the sources of the elements. Water quality index (WQI) and…
Hydrochemistry and Dissolved Inorganic Carbon (DIC) Cycling in a Tropical Agricultural River, Mun River Basin, Northeast Thailand
Dissolved inorganic carbon isotope composition (δ 13 C DIC ), together with major ion concentrations were measured in the Mun River and its tributaries in March 2018 to constrain the origins and cycling of dissolved inorganic carbon. In the surface water samples, the DIC content ranged from 185 to 5897 μmol/L (average of 1376 μmol/L), and the δ 13 C DIC of surface water ranged from -19.6‱ to -2.7‱. In spite of the high variability in DIC concentr…
Distribution and Contamination Assessment of Soil Heavy Metals in the Jiulongjiang River Catchment, Southeast China
A total of 63 soil samples were collected from three soil profiles (yellow soil, red loam, red soil) from Jiulongjiang river catchment to investigate the distribution, controlling factors, and toxic risks of heavy metals, including Cr, Mn, Fe, Cu, Zn, Cd, Pb, and Ni. The results showed that Cr and Cd in soils were enriched. The relationships between heavy metals and soil properties were assessed by principal component analysis. The results indica…
Impacts of Anthropogenic Changes on the Mun River Water: Insight from Spatio-Distributions and Relationship of C and N Species in Northeast Thailand
C and N species, including dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), dissolved organic nitrogen (DON), NO3 - and NH4+ contents in 57 river water samples collected from the Mun River of Thailand were measured to determine the relationships between these dissolved load species and their impacts on the environment. DOC values varied between 1.71 and 40.08 mg/L, averaging 11.14 mg/L; DON values ranged from 0.20 to 1.37 mg/L, w…
Distribution, Sources and Water Quality Evaluation of the Riverine Solutes: A Case Study in the Lancangjiang River Basin, Tibetan Plateau
To examine the chemical composition, potential sources of solutes, and water quality of Lancangjiang River, the concentrations of major ions (Ca 2+ , Mg 2+ , Na + , K + , HCO 3 - , SO 4 2- , Cl - and NO 3 - ) in 45 river water samples collected in July and August 2019 were determined. Ca 2+ and HCO 3 - are the predominant ions in river water. The extremely low K + and NO 3 - concentrations and the sparse population suggest that the anthropogenic …
Spatial Variation and Controlling Factors of H and O Isotopes in Lancang River Water, Southwest China
Climate changes and other human activities have substantially altered the hydrological cycle with respect to elevation. In this study, longitudinal patterns in the stable isotopic composition (δ 2 H and δ 18 O) of Lancang River water, originating from the Qinghai-Tibetan Plateau, are presented, and several controlling factors in the wet season are hypothesized. Lancang River water δ 2 H (-145.2‱ to -60.7‱) and δ 18 O (-18.51‱ to -8.49‱) were low …
The Mercury Behavior and Contamination in Soil Profiles in Mun River Basin, Northeast Thailand
To determine the geochemical characteristics and contamination of soil mercury in the Mun River basin, northeast Thailand, the vertical mercury distribution patterns and mercury contamination levels in six soil profiles under different land uses are studied. A total of 240 soil samples collected from agricultural land, abandoned agricultural land, and woodland were analyzed by an RA-915M mercury analyzer to determine the total mercury (THg) conte…
Hydro-Geochemistry of the River Water in the Jiulongjiang River Basin, Southeast China: Implications of Anthropogenic Inputs and Chemical Weathering
This study focuses on the chemical weathering process under the influence of human activities in the Jiulongjiang River basin, which is the most developed and heavily polluted area in southeast China. The average total dissolved solid (TDS) of the river water is 116.6 mg/L and total cation concentration ( TZ + ) is 1.5 meq/L. Calcium and HCO 3 - followed by Na + and SO 4 2 - constitute the main species in river waters. A mass balance based on cat…
Effects of Soil Aggregate Stability on Soil Organic Carbon and Nitrogen under Land Use Change in an Erodible Region in Southwest China
Soil aggregate stability can indicate soil quality, and affects soil organic carbon (SOC) and soil organic nitrogen (SON) sequestration. However, for erodible soils, the effects of soil aggregate stability on SOC and SON under land use change are not well known. In this study, soil aggregate distribution, SOC and SON content, soil aggregate stability, and soil erodibility were determined in the soils at different depths along the stages following…
Early Transmission Dynamics in Wuhan, China, of Novel Coronavirus–Infected Pneumonia
BACKGROUND: The initial cases of novel coronavirus (2019-nCoV)-infected pneumonia (NCIP) occurred in Wuhan, Hubei Province, China, in December 2019 and January 2020. We analyzed data on the first 425 confirmed cases in Wuhan to determine the epidemiologic characteristics of NCIP. METHODS: We collected information on demographic characteristics, exposure history, and illness timelines of laboratory-confirmed cases of NCIP that had been reported by…
Vertical Distribution and Controlling Factors Exploration of Sc, V, Co, Ni, Mo and Ba in Six Soil Profiles of The Mun River Basin, Northeast Thailand
Exploring the enrichment and controlling factors of heavy metals in soils is essential because heavy metals can cause severe soil contamination and threaten human health when they are excessively enriched in soils. Soil samples (total 103) from six soil profiles (T1 to T6) in the Mun River Basin, Northeast Thailand, were collected for the analyses of the content of heavy metals, including Sc, V, Co, Ni, Mo, Ba. The average contents of soil heavy …
Spatial Variation and Source of Dissolved Heavy Metals in the Lancangjiang River, Southwest China
Dissolved heavy metals are not only the essential micronutrients, but also the toxic elements for human bodies. To investigate the heavy metal sources and assess the water quality of the Lancangjiang River, dissolved Cr, Ni, Cu, Zn, Mo, and Pb were detected in this study. The results show that dissolved Ni and Mo, Cr and Pb, and Cu and Zn were similarly distributed within the drainage basin. The correlation analysis exhibited that dissolved Ni an…
Fe, Rather Than Soil Organic Matter, as a Controlling Factor of Hg Distribution in Subsurface Forest Soil in an Iron Mining Area
To identify whether the iron (Fe) mining area in the Jiulongjiang River basin (JRB) has an influence on the mercury in the forest soil, the spatial distribution patterns of mercury's behavior on different controlling factors were analyzed, and a potential ecological risk assessment was done. A total of 107 soil samples were collected from two forest soil profiles, one profile near the Fe mining area and the other far from it. The soil near the mi…
Effects of Soil Properties on K Factor in the Granite and Limestone Regions of China
Soil erosion has become a serious ecological problem in many catchments. Soil erodibility K factor can be estimated based on a series of soil properties, however, the identification of dominant soil properties that affect K factor prediction at different soil types has been little concerned. In this study, 3 soil profiles from the Jiulongjiang River Catchment (JRC) of granite region in Fujian province and 18 soil profiles from the Chenqi Catchmen…
The association between physical activity and mental health in medical postgraduates in China during Covid-19 pandemic
We concluded that for Chinese postgraduate medical students, taking part in physical activity would depress negative emotions such as depression, anxiety, and stress, but improve their self-efficacy and resilience, which will benefit them in completing their studies and training
Machine learning methods based on probabilistic decision tree under the multi-valued preference environment
In the classification calculation, the data are sometimes not unique and there are different values and probabilities. Then, it is meaningful to develop the appropriate methods to make classification decision. To solve this issue, this paper proposes the machine learning methods based on a probabilistic decision tree (DT) under the multi-valued preference environment and the probabilistic multi-valued preference environment respectively for the d…
Mediating role of psychological resilience between social support and negative emotions in nursing interns in the post‐Covid‐19 era: A cross‐sectional survey
Background The increasing burden of mental health problems continues in the post‐COVID‐19 era, and nursing interns were particularly likely to experience negative emotions during the pandemic. Both psychological resilience and social support affect negative emotion, but the relationship among the three has not been explored in nursing interns in the postpandemic era. Objectives To explore the current prevalence of negative emotions among nursing …
The effect of health quotient and time management skills on self-management behavior and glycemic control among individuals with type 2 diabetes mellitus
Objective The aim of this study was to evaluate the present status of self-management behavior and glycemic control in individuals diagnosed with Type 2 Diabetes Mellitus (T2D), as well as to examine the impact of health quotient (HQ) and time management skills on both self-management behavior and glycemic control. Methods Between October 2022 and March 2023, a purposive sampling method had been utilized to select 215 participants with type T2D. …
Profiles of physical frailty, social frailty, and cognitive impairment among older adults in rural areas of China: A latent profile analysis
Background As China rapidly ages, it has now become a deeply aging society with the largest number of older individuals in the world. The issue is particularly severe in rural areas. With the aging population growing and the older population expanding, health problems are becoming more prevalent among older individuals, particularly frailty and cognitive impairments. This study aimed to identify the profiles of physical frailty, social frailty, a…
Self-awareness and career adaptability of new nurses in the oncology hospital: A chain mediating model of creative self-efficacy and work readiness
Associations between the geriatric nutritional risk index and the risk of and mortality associated with chronic kidney disease in older individuals
Malnutrition assessed by the GNRI was significantly and independently associated with the incidence of CKD. Moreover, CKD patients with malnutrition also have a high risk of mortality
Narcissistic leadership and job satisfaction of auditors: The role of leader-member exchange and work stress
Purpose The objective of this paper is to investigate the impact of narcissistic leadership on job satisfaction among Chinese auditors, while also investigating the mediating effects of leader-member exchange and work stress. Design/methodology/approach This study adopted a questionnaire survey data collection method and used structural equation modeling to analyze the data. The sample included 257 auditors from three major cities in China. Findi…
Diurnal variation and prediction method of floor fuel moisture content in a Pinus massoniana-dominated forest in Guizhou province, China
Fuel moisture content (FMC) on forest floor exhibits consistent diurnal fluctuations between daytime and night-time, and the construction of a high-precision prediction model is important for estimating the diurnal variation of forest fires and implementing scientific management strategies. In this study, typical fuel from a Pinus massoniana dominated forest in southwestern China was selected as the research object, and its moisture content was m…
Environmental Science (14 works) · Chemistry (12 works) · Geology (11 works) · Ecology (10 works) · Geography (10 works) · Environmental Chemistry (9 works) · Soil Science (8 works) · Soil water (8 works) · Drainage basin (7 works) · Hydrology (agriculture (7 works)