14 results on '"Tie B"'
Search Results
2. Competitive binding of Cd, Ni and Cu on goethite organo-mineral composites made with soil bacteria
- Author
-
Du, H, Huang, Q, Peacock, CL, Tie, B, Lei, M, Liu, X, and Wei, X
- Subjects
complex mixtures - Abstract
Soil is a heterogeneous porous media that is comprised of a variety of organo-mineral aggregates. Sorption of heavy metals onto these composite solids is a key process that controls heavy metal mobility and fate in the natural environment. Pollution from a combination of heavy metals is common in soil, therefore, understanding the competitive binding behavior of metal ions to organo-mineral composites is important in order to predict metal mobility and fate. In this study, batch experiments were paired with spectroscopic studies to probe the sorption characteristics of ternary CdNiCu sorbates to a binary organo-goethite composite made with Bacillus cereus cells. Scanning electron microscopy shows that goethite nano-sized crystals are closely associated with the bacterial surfaces. Sorption experiments show a larger adsorptivity and affinity for Cu than Cd/Ni on goethite and B. cereus, and the goethite–B. cereus composite. X-ray photoelectron spectroscopy reveals that carboxylate and phosphate functional moieties present on the bacterial cell walls are primarily responsible for metal sorption to the goethite–B. cereus composite. Synchrotron-based X-ray fluorescence shows that Cu and Ni are predominately associated with the bacterial fraction of the goethite–B. cereus composite, whereas Cd is mainly associated with the goethite fraction. The findings of this research have important implications for predicting the mobility and fate of heavy metals in soil multi-component systems.
- Published
- 2018
3. Application of "Hand as foot" teaching method in ophthalmology anatomy of lacrimal apparatus.
- Author
-
Jin Y, Tie Z, and Tie B
- Abstract
Competing Interests: Declaration of competing interest All the authors have no potential conflicts of interest to disclose.
- Published
- 2024
- Full Text
- View/download PDF
4. Validation of the Appearance-Related Social Media Consciousness Scale with Chinese adolescents and young adults.
- Author
-
Tie B, Yang X, and Qiu J
- Subjects
- Male, Humans, Adolescent, Young Adult, Adult, Female, Consciousness, Reproducibility of Results, Body Image psychology, Psychometrics, China, Surveys and Questionnaires, Social Media
- Abstract
Research has revealed a negative association between appearance-related social media consciousness (ASMC) and mental health, but the impact of this association in the Chinese population remains understudied. This study examined the psychometric properties of the ASMC scale among Chinese adolescents and young adults and to further investigate the scale's measurement invariance and differences in ASMC across gender and age groups. Exploratory and confirmatory factor analyses were conducted to examine the ASMC scale's factorial structure among Chinese adolescents and young adults, including 1109 adolescents (50.0% boys) aged 12-18 (mean, 14.89) years and 457 young adults (42.5% men) aged 18-25 (mean, 20.75) years. The measurement invariance across gender and age groups, internal consistency and convergent validity were examined. ASMC scale was found to have a unidimensional structure and to be invariant across gender and age groups. It exhibited excellent internal consistency and strong construct validity. Moderate gender differences and pronounced age differences in ASMC scale scores were observed. Our findings support the validity of the ASMC scale as an effective instrument for the measurement of appearance-related social media consciousness experience among Chinese young adults and adolescents. Further study is required to evaluate the status of ASMC as a risk factor for disordered eating and target for preventive interventions within Chinese samples., Competing Interests: Declaration of Competing Interest The author(s) declared no potential conflict of interest with respect to the research, author- ship, and/or publication of this article., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
- Published
- 2024
- Full Text
- View/download PDF
5. Multiple mechanisms collectively mediate tungsten homeostasis and resistance in Citrobacter sp. Lzp2.
- Author
-
Luo Z, Li Z, Sun J, Shi K, Lei M, Tie B, and Du H
- Subjects
- Biological Transport, Homeostasis, Transcriptome, Tungsten, Gene Expression Profiling
- Abstract
Tungsten (W) is an emerging contaminant, and current knowledge on W resistance profiles of microorganisms remains scarce and fragmentary. This study aimed to explore the physiological responses of bacteria under W stress and to resolve genes and metabolic pathways involved in W resistance using a transcriptome expression profiling assay. The results showed that the bacterium Citrobacter sp. Lzp2, screened from W-contaminated soil, could tolerate hundreds of mM W(VI) with a 50% inhibiting concentration of ∼110 mM. To cope with W stress, Citrobacter sp. Lzp2 secreted large amounts of proteins through the type VI secretory system (T6SS) to chelate W oxoanions via carboxylic groups in extracellular polymeric substances (EPS), and could transport cytosolic W outside via the multidrug efflux pumps (mdtABC and acrD). Intracellular W is probably bound by chaperone proteins and metal-binding pterin (tungstopterin) through the sulfur relay system. We propose that tetrathionate respiration is a new metabolic pathway for cellular W detoxification likely producing thio-tungstate. We conclude that multiple mechanisms collectively mediate W homeostasis and resistance in Citrobacter sp. Lzp2. Our results have important implications not only for understanding the intricate regulatory network of W homeostasis in microbes but also for bio-recovery and bioremediation of W in contaminated environments., Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Huihui Du reports financial support was provided by National Natural Science Foundation of China., (Copyright © 2023 Elsevier B.V. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
6. Nano-ferrihydrite colloidal particles mediated interfacial interactions of arsenate and cadmium: Implications for their fate under iron-rich geological settings.
- Author
-
Li B, Wei D, Jing M, Zhou Y, Huang Y, Mensah CO, Long J, Tie B, and Lei M
- Abstract
Arsenic (As) and cadmium (Cd) often coexist in paddy soils. Nano-ferrihydrite colloidal particles (NFPs) are ubiquitous at redox active interfaces of the paddy system and are well-known to play a critical role in controlling the solubility and bio-availability of As and Cd. However, the mutual interaction between As and Cd on NFPs remains elusive. Herein, batch experiments and in-situ spectroscopic techniques were used to investigate the effects of the interaction pattern (sequential reaction) of Cd(II) and As(V) on their respective adsorption on the surfaces of NFPs. Two scenarios were designed: Cd(II) pre-saturated NFPs and As(V) pre-saturated NFPs. Adsorption of Cd(II) was increased by 1.67, 4.08, and 5.21 times in As(V)-saturated NFPs, but only by 1.05, 1.11, and 1.15 times for As(V) in Cd(II)-saturated NFPs. Further, we determined the pH-dependent mutually beneficial cooperation pathways as mediated by the surface of NFPs. At lower pH (5), As(V) tended to promote Cd(II) adsorption, whereas Cd(II) tended to enhance As(V) adsorption at higher pH (> 5.5). X-ray photoelectron spectroscopy (XPS) indicated that both pre-saturated Cd(II) and As(V) altered the local coordination environment of their counterpart ions. Furthermore, results from in-situ attenuated total reflection-Fourier-transform infrared spectroscopy (ATR-FTIR) and second derivative peak shape fitting revealed two types of ternary surface complexes, namely Cd(II)-bridged and As(V)-bridged complexes, which were responsible for the distinct Cd(II) and As(V) co-adsorption behavior on the surface of NFPs under different conditions. These findings help us understand how co-presence Cd and As behave in an iron-rich geological setting and will aid in the development of related restoration technologies., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier B.V. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
7. The "Hand as Foot" teaching method in laryngomalacia.
- Author
-
Tie B, Duo H, He B, and Wang J
- Subjects
- Humans, Upper Extremity, Hand, Foot, Lower Extremity, Laryngomalacia
- Abstract
Competing Interests: Declaration of competing interest All the authors have no potential conflicts of interest to disclose.
- Published
- 2023
- Full Text
- View/download PDF
8. Pachyderma in children: A clinically silent cutaneous fibromatosis.
- Author
-
He B, Wang J, Duo H, and Tie B
- Subjects
- Child, Humans, Hyperplasia, Skin, Fibroma complications, Fibroma diagnosis, Fibroma surgery
- Published
- 2022
- Full Text
- View/download PDF
9. Natural dissolved organic matter (DOM) affects W(VI) adsorption onto Al (hydr)oxide: Mechanisms and influencing factors.
- Author
-
Lu L, Rao W, Song Y, Lei M, Tie B, and Du H
- Subjects
- Adsorption, Organic Chemicals, Soil, Dissolved Organic Matter, Oxides
- Abstract
Tungsten (W) is a contaminant with health implications whose environmental behaviors are not understood well. Sorption to mineral surfaces is one of the primary processes controlling the mobility and fate of W in soils, sediments, and aquifers. However, few papers published hitherto have not yet figured out the influences of dissolved organic matter (DOM) on this process. Here, we examine W(VI) adsorption behaviors onto Al (hydr)oxide (AAH) in the presence or absence of DOM derived from plant rhizosphere, using batch experiments coupled with X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR). The morphology and functional group analyses results show that DOM can facilitate the aggregation of AAH and block surface Al-OH groups. Coexisting DOM inhibits W(VI) adsorption onto AAH at acidic to neutral pH (4-7), and the presence of either Na
+ or PO4 3- can exert a completely different impact on W(VI) adsorption. XPS and FTIR characterizations further demonstrate surface W complexes with the Al-OH groups of AAH and carboxyl groups of DOM. There is no reduction of W(VI) during the adsorption processes, and poly-tungstate species are formed on the surface of both AAH and AAH-DOM coprecipitates. This study provides the first evidence of the roles of natural DOM on W sequestration at the mineral-water surface, which has an important implication for the prediction of the migration and bioavailability of W in natural environments., (Copyright © 2021 Elsevier Inc. All rights reserved.)- Published
- 2022
- Full Text
- View/download PDF
10. How physicians respond to negative emotions in high-risk preoperative conversations.
- Author
-
Tie B, Liu X, Yin M, Humphris G, Zhang Y, Liu H, Zhao Y, and Wang Q
- Subjects
- Emotional Intelligence, Emotions, Female, Humans, Physician-Patient Relations, Communication, Physicians psychology
- Abstract
Objective: To investigate physicians' responses to negative emotions in high-risk preoperative conversations; and to explore the influencing factors of these responses., Methods: One hundred and sixty-two audio recordings were coded using the Chinese Verona Coding Definition of Emotional Sequences (VR-CoDES). Big Five Personality Inventory Brief Version and Emotional Intelligence Scale were administered to explore the influencing factors of physicians' responses. SPSS 24.0 and R 3.6.3 LME4 Package were used for data analysis., Results: Reduce Space (83%), referring to physicians' responses reducing the opportunities of patients to disclose emotions, was physicians' most frequent response to patients or families' emotions. The main responses were Information-advice (ERIa) and Ignoring (NRIa). Younger age, female, Agreeableness and Openness were factors positively associated with Explicit Provide Space (EP); Neuroticism was negatively correlated with EP. Extroversion was negatively correlated with Explicit Reduce Space (ER); Conscientiousness was negatively correlated with both EP and ER responses. Emotional intelligence had no significant influence on physicians' responses., Conclusion: The majority of physicians were inclined to reduce space by providing information advice or ignoring. Physicians' responses were correlated with their gender, age and personality traits., Practice Implications: The trainees' gender, age and personality should be considered when conducting doctor-patient communication skills training., (Copyright © 2021 The Authors. Published by Elsevier B.V. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
11. The Chinese version of OPTION scale: Is it reliable on measuring the shared decision-making among preoperative conversations.
- Author
-
Zhang F, Wang Q, Liu X, Zhang Y, Liu H, Yin M, Zhao Y, and Tie B
- Subjects
- China, Communication, Humans, Psychometrics, Reproducibility of Results, Decision Making, Patient Participation
- Abstract
Objective: To test the reliability of the Chinese version of the OPTION
12 (OPTION12 -C) scale; and to evaluate the level of shared decision-making (SDM) in the preoperative conversations for high-risk procedures by using the OPTION12 -C., Methods: Two hundred and ninety-seven conversations were rated. Cronbach's alpha, Pearson's correlation coefficient and intraclass correlation coefficient (ICC) were used to assess the reliability of the OPTION12 -C. Mean and median were applied to evaluate the scores., Results: The Cronbach's alpha was 0.603. The Pearson's correlation coefficient of the sub-items ranged from 0.002 to 0.595; the inter-rater ICC was 0.992. The mean and median of the total scores were 9.61 ( ± 3.583) and 9 respectively. 430 family members appeared in the conversations., Conclusion: The reliability of the OPTION12 -C was acceptable. The SDM behaviors of doctors were only scored at or close to the minimal skill level. High level of family involvement demonstrated the Chinese culture of family- centeredness., Practice Implications: The OPTION12 -C was proved to be applicable for testing the extent of SDM. The low level of SDM indicates a need to improve Chinese doctors' communication skills., Competing Interests: Declaration of competing interests The authors declare they have no competing interests., (Copyright © 2021. Published by Elsevier B.V.)- Published
- 2021
- Full Text
- View/download PDF
12. Mechanistic insights into the enhanced removal of roxsarsone and its metabolites by a sludge-based, biochar supported zerovalent iron nanocomposite: Adsorption and redox transformation.
- Author
-
Li B, Wei D, Li Z, Zhou Y, Li Y, Huang C, Long J, Huang H, Tie B, and Lei M
- Subjects
- Adsorption, Environmental Restoration and Remediation methods, Hydrogen-Ion Concentration, Oxidation-Reduction, Roxarsone chemistry, Soil Pollutants chemistry, Soil Pollutants isolation & purification, Water Pollutants, Chemical chemistry, Charcoal chemistry, Iron chemistry, Nanocomposites chemistry, Roxarsone isolation & purification, Sewage chemistry, Water Pollutants, Chemical isolation & purification
- Abstract
Roxarsone is a phenyl-substituted arsonic acid comprising both arsenate and benzene rings. Few adsorbents are designed for the effective capture of both the organic and inorganic moieties of ROX molecules. Herein, nano zerovalent iron (nZVI) particles were incorporated on the surface of sludge-based biochar (SBC) to fabricate a dual-affinity sorbent that attracts both the arsenate and benzene rings of ROX. The incorporation of nZVI particles significantly increased the binding affinity and sorption capacity for ROX molecules compared to pristine SBC and pure nZVI. The enhanced elimination of ROX molecules was ascribed to synergetic adsorption and degradation reactions, through π-π* electron donor/acceptor interactions, H-bonding, and As-O-Fe coordination. Among these, the predominate adsorption force was As-O-Fe coordination. During the sorption process, some ROX molecules were decomposed into inorganic arsenic and organic metabolites by the reactive oxygen species (ROS) generated during the early stages of the reaction. The degradation pathways of ROX were proposed according to the oxidation intermediates. This work provides a theoretical and experimental basis for the design of adsorbents according to the structure of the target pollutant., Competing Interests: Declaration of Competing Interest There are no conflicts to declare., (Copyright © 2020 Elsevier B.V. All rights reserved.)
- Published
- 2020
- Full Text
- View/download PDF
13. Mitigating arsenic accumulation in rice (Oryza sativa L.) from typical arsenic contaminated paddy soil of southern China using nanostructured α-MnO 2 : Pot experiment and field application.
- Author
-
Li B, Zhou S, Wei D, Long J, Peng L, Tie B, Williams PN, and Lei M
- Subjects
- Adsorption, Arsenic chemistry, Biological Availability, China, Ferric Compounds chemistry, Nanotubes ultrastructure, Oryza chemistry, Oxidation-Reduction, Plant Components, Aerial chemistry, Plant Components, Aerial metabolism, Soil chemistry, Soil Pollutants chemistry, Arsenic metabolism, Environmental Restoration and Remediation methods, Manganese Compounds chemistry, Nanotubes chemistry, Oryza metabolism, Oxides chemistry, Soil Pollutants metabolism
- Abstract
Manganese oxides are naturally occurring powerful oxidants and scavengers, which can control the mobility and bioavailability of arsenic (As). However, the effect of synthetic nanostructured manganese oxides on the mobilization and transportation of As at actual paddy soils are poorly understood, especially in soils with low or medium background Mn concentration. In the present study, a novel nano manganese oxide with superior reactivity and surface area has been synthesized. A 90-d soil incubation experiment combined with pot and field rice cultivation trials were designed to evaluate the effectiveness of exogenous α-MnO
2 nanorods on the mobilization and transportation of As in soil-rice systems. Our results proved that the addition of α-MnO2 nanorods can effectively control the soil-to-solution partitioning of As under anaerobic conditions. After treatment with different amounts of α-MnO2 nanorods, the content of effective As decreased, offset by an increase in residual As and insoluble binding As (Ca-As and Fe-As). Enhancing the oxidation of As(III) into As(V), the α-MnO2 nanorods increased the adsorption of As onto indigenous iron (hydr)oxides which greatly reduced the soil porewater As content. In addition, pot experiments and field applications revealed that the influx of As into the aerial parts of rice plants (stems, husk and leaves) was strictly prohibited after treatments with different amount of α-MnO2 nanorods; more interestingly, significantly negative correlations have been observed between As and Mn in rice, which indicated that as Mn is increased in soil, As in brown rice decreases. Our results demonstrated that the use of α-MnO2 nanorods in As polluted paddy soil containing low levels of background Mn oxides can be a promising remediation strategy., (Copyright © 2018 Elsevier B.V. All rights reserved.)- Published
- 2019
- Full Text
- View/download PDF
14. Inoculation of soil with cadmium-resistant bacterium Delftia sp. B9 reduces cadmium accumulation in rice (Oryza sativa L.) grains.
- Author
-
Liu Y, Tie B, Li Y, Lei M, Wei X, Liu X, and Du H
- Subjects
- Biodegradation, Environmental, Biomass, China, Edible Grain growth & development, Metals, Heavy, Oryza growth & development, Cadmium metabolism, Delftia metabolism, Edible Grain metabolism, Oryza metabolism, Soil chemistry, Soil Pollutants metabolism
- Abstract
Bioremediation of heavy metal polluted soil using metal-resistant bacteria has received increasing attentions. In the present study, we isolated a heavy metal-resistant bacterial strain from a Cd-contaminated soil, and conducted pot experiments to evaluate the effect of bacterial inoculation in soil on soil Cd speciation, rice grain biomass and Cd accumulation. We find that the isolated bacterial strain is a Gram-negative bacterium, and named as Delftia sp. B9 based on the 16S rDNA gene sequence analysis. TEM-EDS manifests that Cd can be bioaccumulated inside cell, resulting in intracellular dissolution. The Cd contents of rice grain in the two rice cultivars (early and late rice) are all below the standard limit for Food Safety of People's Republic of China (0.2 mg/kg) after the treatment of both living and non-living cells. Non-living cells are more applicable than the use of living cells for the short time bioremediation. The average content of soil exchangeable fraction of Cd decreases whereas the residual fraction increases with bacterial inoculation. All our results suggest Delftia sp. B9 is able to the stabilization of Cd in soil and reduce Cd accumulation in rice grain, therefore, this strain is potentially suitable for the bioremediation of Cd-contaminated paddy soils., (Copyright © 2018 Elsevier Inc. All rights reserved.)
- Published
- 2018
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.