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Gender and Race Differences in Mental Health and Well-Being Among Older Americans During the COVID-19 Pandemic

International Journal of Disaster Risk Science 2024年第2期15卷 239-250页

作者： Dongjuan Xu Nasreen Lalani yitong wang School of Nursing Purdue University Center on Aging and the Life Course Purdue University

The objectives of this study were to investigate(1) gender and race differences in mental health and psychological wellbeing among older adults during the COVID-19 pandemic and(2) whether there were significant interaction effects between gender and race. This study used the National Health and Aging Trends Study(NHATS) and COVID-19 public use data files. It focused on mental health and psychological well-being, including loneliness, no time to yourself, poor sleep quality, anxiety, depression, and post-traumatic stress disorder(PTSD). The sample consisted of 2465 older adults, and multivariate logistic and linear regression models were adopted for the analysis. The results show that approximately two out of five older people(43%) experienced poor sleep, followed by loneliness(35%), anxiety(30%), depression(23%), and no time to themselves(11%). The average PTSD score was 11. Mental health and psychological well-being varied by gender and race. There were significant interaction effects on anxiety and depression between females and Black older adults. Black females reported lower levels of anxiety and depressive symptoms than Black males, although the differences were not statistically significant. Black older adults were more likely to experience PTSD but less likely to feel lonely and have poorer sleep than their White counterparts. Female older adults reported poorer mental health and psychological well-being than males, except for Black females. Black females had the lowest levels of anxiety, depression, loneliness, and highest quality of sleep among all females of different ethnic and racial origins.

关键词： COVID-19 Gender Mental health Older adults Psychological well-being Race and ethnicity United States

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Insight into the adsorption behavior and mechanism of trace impurities from H_(2)O_(2)solution on functionalized zirconia by tuning the structure of amino groups

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Frontiers of Chemical Science and Engineering 2024年第5期18卷 83-94页

作者： Yu Meng yitong wang Guozhu Li Guozhu Liu Li wang Key Laboratory for Green Chemical Technology of Ministry Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China

Primary,secondary and tertiary amino-functionalized zirconia(ZrO_(2)-NH_(2),ZrO_(2)-NH and ZrO_(2)-N)was synthesized by the postgrafting method for the adsorption removal of typical metallic ions,phosphate and total oxidizable carbon from a real H_(2)O_(2)solution.ZrO_(2)-NH_(2),ZrO_(2)-NH and ZrO_(2)-N exhibited similar pore sizes and sequentially increased zeta potentials.The adsorption results of single and binary simulated solutions showed that the removal efficiency increased in the order of Fe^(3+)>Al^(3+)>Ca^(2+)>Na^(+).There is competitive adsorption between metallic ions,and Fe^(3+)has an advantage over the other metals,with a removal efficiency of 90.7%.The coexisting phosphate could promote the adsorption of metallic ions,while total oxidizable carbon had no effect on adsorption.The adsorption results of the real H_(2)O_(2)solution showed that ZrO_(2)-NH_(2)exhibited the best adsorption affinity for metallic ions,as did phosphate and total oxidizable carbon,with a total adsorption capacity of 120.9 mg·g_(-1).Density functional theory calculations revealed that the adsorption process of metallic ions involves electron transfer from N atoms to metals and the formation of N-metal bonds.

关键词： adsorption metallic ion phosphate total oxidizable carbon zirconia H_(2)O_(2)

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Simultaneous removal of total oxidizable carbon,phosphate and various metallic ions from H_(2)O_(2) solution with amino-functionalized zirconia as adsorbents

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Frontiers of Chemical Science and Engineering 2023年第4期17卷 470-482页

作者： yitong wang Yue Zhang Li wang School of Chemical Engineering and Technology Tianjin UniversityTianjin 300072China Zhejiang Institute of Tianjin University Ningbo 315201China

Amino-functionalized zirconia was synthesized by the co-condensation method using zirconium butanol and 3-aminopropyltriethoxy silane for the simultaneous removal of various impurities from aqueous 30% H_(2)O_(2) solution.The results of Fourier transform infrared(FTIR)and Zeta potential showed that the content of N in amino-functionalized zirconia increased with the added amount of 3-aminopropyltriethoxy silane.Accordingly,the removal efficiency of total oxidizable carbon,phosphate and metallic ions from the H_(2)O_(2) solution increased.The adsorbent with an N content of 1.62%exhibited superior adsorption performance.The removal efficiency of 82.7% for total oxidizable carbon,34.2%for phosphate,87.1% for Fe^(3+),83.2%for Al^(3+),55.1%for Ca^(2+)and 66.6%for Mg^(2+),with a total adsorption capacity of 119.6 mg·g^(-1),could be achieved.The studies conducted using simulated solutions showed that the adsorption process of phosphate on amino-functionalized zirconia is endothermic and spontaneous,and the behaviors could be well described by the pseudo-second-order model and Langmuir model with a maximum adsorption capacity of 186.7 mg·g^(-1).The characterizations of the spent adsorbents by Zeta potential,FTIR and X-ray photoelectron spectroscopy revealed that the adsorption mechanism of phosphate is predominantly electrostatic attraction by the protonated functional groups and complementary ligand exchange with zirconium hydroxyl groups.

关键词： adsorption zirconia total oxidizable carbon phosphate metallic ions hydrogen peroxide

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A Rising 2D Star:Novel MBenes with Excellent Performance in Energy Conversion and Storage

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Nano-Micro Letters 2023年第1期15卷 94-143页

作者： Tianjie Xu Yuhua wang Zuzhao Xiong yitong wang Yujin Zhou Xifei Li Hubei Province Key Laboratory of Science in Metallurgical Process Wuhan University of Science and TechnologyWuhan 430081People’s Republic of China Institute of Advanced Electrochemical Energy and School of Materials Science and Engineering Xi’an University of TechnologyXi’an 710048People’s Republic of China Center for International Cooperation On Designer Low-Carbon and Environmental Materials(CDLCEM) Zhengzhou UniversityZhengzhou 450001HenanPeople’s Republic of China

As a flourishing member of the two-dimen-sional(2D)nanomaterial family,MXenes have shown great potential in various research areas.In recent years,the continued growth of interest in MXene derivatives,2D transition metal borides(MBenes),has contributed to the emergence of this 2D material as a latecomer.Due to the excellent electrical conductivity,mechanical properties and electrical properties,thus MBenes attract more researchers’interest.Extensive experimental and theoretical studies have shown that they have exciting energy conversion and elec-trochemical storage potential.However,a comprehensive and systematic review of MBenes applications has not been available so far.For this reason,we present a comprehen-sive summary of recent advances in MBenes research.We started by summarizing the latest fabrication routes and excellent properties of MBenes.The focus will then turn to their exciting potential for energy storage and conversion.Finally,a brief summary of the challenges and opportunities for MBenes in future practical applications is presented.

关键词： MBenes Energy storage and conversion Catalyst Anode material Machine learning

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Self-supervised graph learning with target-adaptive masking for session-based recommendation

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Frontiers of Information Technology & Electronic Engineering 2023年第1期24卷 73-87页

作者： yitong wang Fei CAI Zhiqiang PAN Chengyu SONG Science and Technology on Information Systems Engineering Laboratory National University of Defense TechnologyChangsha 410073China

Session-based recommendation aims to predict the next item based on a user’s limited interactions within a short period.Existing approaches use mainly recurrent neural networks(RNNs)or graph neural networks(GNNs)to model the sequential patterns or the transition relationships between items.However,such models either ignore the over-smoothing issue of GNNs,or directly use cross-entropy loss with a softmax layer for model optimization,which easily results in the over-fitting problem.To tackle the above issues,we propose a self-supervised graph learning with target-adaptive masking(SGL-TM)method.Specifically,we first construct a global graph based on all involved sessions and subsequently capture the self-supervised signals from the global connections between items,which helps supervise the model in generating accurate representations of items in the ongoing session.After that,we calculate the main supervised loss by comparing the ground truth with the predicted scores of items adjusted by our designed target-adaptive masking module.Finally,we combine the main supervised component with the auxiliary self-supervision module to obtain the final loss for optimizing the model parameters.Extensive experimental results from two benchmark datasets,Gowalla and Diginetica,indicate that SGL-TM can outperform state-of-the-art baselines in terms of Recall@20 and MRR@20,especially in short sessions.

关键词： Session-based recommendation Self-supervised learning Graph neural networks Target-adaptive

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Recent progress in MXene layers materials for supercapacitors:High-performance electrodes

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SmartMat 2023年第1期4卷 19-53页

作者： yitong wang Yuhua wang Hubei Province Key Laboratory of Science in Metallurgical Process Wuhan University of Science and TechnologyWuhanChina

In 2011,Gogotsi et al.discovered a new type of two-dimensional transition metal carbides and nitrides,called MXenes,which have become a dazzling new star in the energy storage industry.MXenes are endowed with a series of fascinating properties due to their unique structures and tunable surface chemical functional groups.The application of MXenes in electrochemical energy storage has attracted special attention,especially showing great potential in supercapacitor applications.Compared with other materials,MXenes have high mechanical flexibility,high energy density,and good electrochemical performance,so they are especially suitable as electrode materials for supercapacitors.However,similar to other 2D materials,due to the strong van der Waals forces,MXene layers inevitably undergo stacking agglomeration,resulting in severe loss of electrochemically active sites.If the self-stacking of MXenes layers can be effectively suppressed,their electrochemical performance will be enhanced.Structural optimization of MXenes and composite doping of MXenes with other materials are two strategies with significant effects.This review summarizes recent advances in MXene synthesis,fundamental properties,and composite materials,focusing on the latest electrochemical performance of MXene-based electrodes/devices,and puts forward the challenges and new opportunities that MXenes face in this emerging energy storage field.

关键词： composite materials MXene MXene-based supercapacitors

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Chiral Macrocyclic AIEgens from BINOL and Tetraphenylethene via Tailoring Chirality of Luminescent Molecular Propellers

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Chinese Journal of Chemistry 2022年第20期40卷 2393-2399页

作者： yitong wang Xiaoqing Liu Hongkun Li Xindong Liu Lei wang Yi Liu Shenzhen Key Laboratory of Polymer Science and Technology Guangdong Research Center for Interfacial Engineering of Functional MaterialsCollege of Materials Science and EngineeringShenzhen UniversityShenzhenGuangdong518060 China Institute of Critical Materials for Integrated Circuits Shenzhen PolytechnicShenzhenGuangdong518055 China State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials College of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhouJiangsu215123 China Centre for AIE Research Shenzhen UniversityShenzhenGuangdong518060 China

Herein,a pair of chiral macrocyclic luminogens derived from chiral 1,1-bi(2-naphthol)(BINOL)and tetraphenylethenes(TPEs)have been prepared with high yield via intramolecular McMurry coupling,in which the preferential helicity of propeller-shaped TPE units can be tuned via choosing proper chiral BINOL tethers.The preferential chiral geometry of the macrocyclic luminogen was unambiguously confirmed by X-ray crystal crystallography and theoretical calculation,whereas the variable-temperature NMR spectra and chiral HPLC analysis further verified the intramolecular motions.These two chiral macrocyclic luminogens both exhibit obvious aggregation-induced emission behavior and mechanochromic luminescence properties.Furthermore,aggregation attenuated CD signals and circularly polarized luminescence were observed for these two chiral macrocylic luminogens in THF-water mixture and PMMA matrix.These results had paved a new approach toward constructing chiral aggregation-induced emission luminogens(AIEgens)and their structural engineering.

关键词： Aggregation-induced emission Chirality Macrocycles Circularly polarized luminescence Luminescence

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Chemical diversity of scleractinian corals revealed by untargeted metabolomics and molecular networking

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Acta Oceanologica Sinica 2023年第11期42卷 127-135页

作者： Jiying Pei Yuxia Zhou Shiguo Chen Kefu Yu Zhenjun Qin Ruijie Zhang yitong wang Coral Reef Research Center of China Guangxi Laboratory on the Study of Coral Reefs in the South China SeaSchool of Marine SciencesGuangxi UniversityNanning 530000China Southern Marine Science and Engineering Guangdong Laboratory Zhuhai 519080China

The chemical diversity of scleractinian corals is closely related to their physiological,ecological,and evolutionary status,and can be influenced by both genetic background and environmental variables.To investigate intraspecific variation in the metabolites of these corals,the metabolomes of four species(Pocillopora meandrina,Seriatopora hystrix,Acropora formosa,and Fungia fungites)from the South China Sea were analyzed using untargeted mass spectrometry-based metabolomics.The results showed that a variety of metabolites,including amino acids,peptides,lipids,and other small molecules,were differentially distributed among the four species,leading to their significant separation in principal component analysis and hierarchical clustering plots.The higher content of storage lipids in branching corals(P.meandrina,S.hystrix,and A.formosa)compared to the solitary coral(F.fungites)may be due to the high densities of zooxanthellae in their tissues.The high content of aromatic amino acids in P.meandrina may help the coral protect against ultraviolet damage and promote growth in shallow seawater,while nitrogen-rich compounds may enable S.hystrix to survive in various challenging environments.The metabolites enriched in F.fungites,including amino acids,dipeptides,phospholipids,and other small molecules,may be related to the composition of the coral's mucus and its life-history,such as its ability to move freely and live solitarily.Studying the chemical diversity of scleractinian corals not only provides insight into their environmental adaptation,but also holds potential for the chemotaxonomy of corals and the discovery of novel bioactive natural products.

关键词： scleractinian coral chemical diversity metabolomics molecular networking environmental adaptation

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A Novel Magnetic Carbon Based Catalyst Synthesized from Reed Straw and Electric Furnace Dust for Biodiesel Production

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Journal of Renewable Materials 2022年第8期10卷 2099-2115页

作者： Fuping wang Lele Kang Rui Ji Tianji Liu Qing Yu Di Gao Xiaoman wang yitong wang Jie Yang College of Metallurgy and Energy North China University of Science and TechnologyTangshan063210China Qian’an College North China University of Science and TechnologyQian’an064400China

In the era of serious greenhouse gas emission and energy shortage,it is necessary to use solid waste to prepare new renewable materials.In this work,the potential application of reed straw and electric furnace dust was explored.Firstly,magnetic carbon carrier(EFD&C)was prepared by high temperature calcination,and then magnetic carbon catalyst(SM@EFD&C)was prepared by activation of sodium methoxide.The catalyst was used to prepare biodiesel by transesterification reaction to test its activity and stability.Reed biochar,EFD&C and SM@EFD&C were detected by Diffraction of X-rays(XRD),Fourier transform infrared(FT-IR),Inductively coupled plasma(ICP),Scanning electron microscope(SEM),Transmission electron microscope(TEM),Brunauer-Emmett-Teller(BET),Vibrating sample magnetometer(VSM),Temperature programmed desorption of CO_(2)(CO_(2)-TPD)and Thermogravimetric analysis(TG-DTG).The results showed that SM@EFD&C catalyst had some characteristics including porous structure,easy adsorption and better magnetism.Under the reaction conditions of 65℃for 2 h with 6 wt%catalyst and methanol/oil molar ratio of 15:1,the biodiesel yields from reed biochar and EFD&C were only 4.88 wt%and 0.03 wt%,respectively,while the yield from SM@EFD&C catalyst reached 93.14 wt%(89.84 wt%after 7 cycles)under the same conditions,which proved that it had good catalytic activity and stability when used in biodiesel production.This study is of great significance of carbon dioxide emission reduction and environmental protection.

关键词： Reed biochar electric furnace dust magnetic biochar catalyst biodiesel environmental protection

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MXene Ti_(3)C_(2) decorated g-C_(3)N_(4)/ZnO photocatalysts with improved photocatalytic performance for CO_(2) reduction

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Nano Materials Science 2023年第2期5卷 237-245页

作者： Jianxin Li Yuhua wang yitong wang Yao Guo Shiding Zhang Haixiang Song Xianchang Li Qianqian Gao Wanyu Shang Shuaishuai Hu Huibin Zheng Xifei Li Hubei Province Key Laboratory of Science in Metallurgical Process Wuhan University of Science and TechnologyWuhan430081China Henan Joint International Research Laboratory of Nanocomposite Sensing Materials Anyang Institute of TechnologyAnyang455000China School of Intelligent Manufacturing Huzhou313000China Key Laboratory of Advanced Batteries Materials for Electric Vehicles of China Petroleum and Chemical Industry Federation School of Materials Science and EngineeringXi'an University of TechnologyXi'an710048China Engineering Research Center of Conducting Materials and Composite Technology Ministry of EducationXi'an710048China Center for International Cooperation on Designer Low-carbon&Environmental Materials(CDLCEM) Zhengzhou UniversityZhengzhou450001China

Photocatalytic reduction of CO_(2) is considered as a kind of promising technologies for solving the greenhouse effect.Herein,a novel hybrid structure of g-C_(3)N_(4)/ZnO/Ti_(3)C_(2) photocatalysts was designed and fabricated to investigate their abilities for CO_(2) reduction.As demonstration,heterojunction of g-C_(3)N_(4)/ZnO can improve photogenerated carriers’separation,the addition of Ti_(3)C_(2) fragments can further facilitate the photocatalytic performance from CO_(2) to CO.Hence,g-C_(3)N_(4)/ZnO/Ti_(3)C_(2) has efficiently increased CO production by 8 and 12 times than pristine g-C_(3)N_(4) and ZnO,respectively.Which is ascribed to the photogenerated charge migration promoted by metallic Ti_(3)C_(2).This work provides a guideline for designing efficient hybrid catalysts on other applications in the renewable energy fields.

关键词： Ti_(3)C_(2)fragments ZnO G-C_(3)N_(4) CO_(2)reduction

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