Article
Environmental Sciences
Xin Wang, Yinqiang Li, Mingqing Lin, Zhinan Su, Xiong Liu, Kefu Yu
Summary: High-latitude coral communities have the potential to serve as refuges during global climate change, but this is being hindered by the combined pressure of global climate and anthropogenic activities. A long-term monitoring study on coral communities along the Bailong Peninsula in the northern South China Sea revealed that corals have a scattered and uneven distribution pattern, but the growth of reef-building corals and coral recruitment are improving, which play important roles in regulating the structure of adult coral populations and promoting the development of coral communities. The Bailong Peninsula has the potential to become a refuge for corals if human activities impacting coral restoration potential are controlled.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Sirong Xie, Wei Jiang, Yinan Sun, Kefu Yu, Chunmei Feng, Yansong Han, Yuwen Xiao, Chaoshuai Wei
Summary: Heavy metal pollution in the marine ecosystem is a serious environmental problem. Marine transportation activities have gradually become an important source of heavy metals in seawater. This study investigated the inter-annual variation of heavy metals in Porites lutea skeletons near Weizhou Island and found that marine shipping activities greatly impact heavy metal concentrations in seawater.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Yip Hung Yeung, James Y. Xie, Yu Zhao, Hiu Yan Yu, Chong Chen, William Weijia Lu, Jian-Wen Qiu
Summary: A 2-year study in subtropical Hong Kong waters revealed that external erosion caused by sea urchin grazing is the primary factor contributing to coral skeletal loss. Controlling the sea urchin population density is crucial to reducing coral erosion.
MARINE POLLUTION BULLETIN
(2021)
Article
Geography, Physical
Fei Tan, Hongqiang Yang, Xiyang Zhang, Huilong Xu, Qi Shi, Shichen Tao, Hongqiang Yan, Guan Wang
Summary: This study examines the reproducibility of microatoll delta O-18 records and evaluates its reliability as a proxy for reconstructing regional climate and ENSO variability. The results show that the records are primarily controlled by local sea surface temperature, and the signal may be suppressed by sea surface salinity variations. The study highlights the potential of microatoll as an alternate climate archive in the South China Sea.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Hao Wang, Kefu Yu, Tao Han, Shendong Xu, Shichen Tao, Shaohua Dang, Xiaopeng Yu
Summary: This study presents eight Porites coral delta C-13 records from the northern South China Sea, showing a long-term decreasing trend in coral delta C-13 seasonality since the mid-late Holocene, consistent with changes in orbital-induced insolation seasonal amplitude. By excluding other factors, the study suggests that the increased coral delta C-13 seasonality during the mid-Holocene is due to metabolic effects. These findings have implications for using coral delta C-13 seasonality as an indicator for past insolation changes under different climatic backgrounds.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Oceanography
Ning Guo, Wei Jiang, Kefu Yu, Jian-xin Zhao, Yinxian Song, Yue-xing Feng, Yansong Han, Tingwu Gu
Summary: In recent decades, vanadium (V) levels in the environment have dramatically increased. Conventional methods for assessing oceanic V levels are limited in providing a comprehensive understanding of the dynamics of oceanic V and its relationship to environment and climate. This study reconstructed the interannual variations in surface seawater V levels in the northern South China Sea using a 137-year record of V/Ca ratios from coral samples. The study revealed that anthropogenic activities had a limited impact on V levels, but V variability differed significantly across different time periods.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2023)
Article
Biochemistry & Molecular Biology
Wen Huang, Enguang Yang, Kefu Yu, Linqing Meng, Yonggang Wang, Jiayuan Liang, Xueyong Huang, Guanghua Wang
Summary: This study analyzed the physiological and gene expression differences of coral under low temperature stress. It found that tropical corals at lower latitudes had lower cold tolerance due to lower oxidative stress resistance, photosynthetic capacity, energy supply, and higher susceptibility to bacteria and viral infections. These differences in cold tolerance may hinder the migration of tropical corals to relatively high latitude refuges. This study provides a theoretical basis for anthropogenically assisted coral migration as a response to global change.
Article
Geography, Physical
Yi Liu, Shichen Tao, Ruoyu Sun, Chen-Feng You, Tzu-Hao Wang, Thomas Felis, Wang Zheng, Shaobo Sun, Xiaodong Liu, Qi Shi, Jianxin Zhao, Kefu Yu
Summary: This study examines the impact of nutrient enrichment on coral growth in remote ocean reefs. It finds that variations in coral growth rate over the past centuries are closely related to changes in seabird populations, suggesting a role of nutrient loads in controlling coral growth. This highlights the importance of considering historical nutrient inputs when projecting future coral growth under human activities and climate change.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Environmental Sciences
Chunmei Feng, Wei Jiang, Kefu Yu, Yinan Sun, Sirong Xie, Yansong Han, Chaoshuai Wei
Summary: Barium plays a crucial role in understanding marine biogeochemical processes, but limited knowledge of sources and variations hinders comprehension of these processes. Coral Ba/Ca ratios have potential as a tracer of oceanic Ba, but long-term and high-resolution records are lacking. This study analyzed a 32-year record of coral Ba/Ca ratios and delta 18O from Weizhou Island in the South China Sea to elucidate sources and influencing factors on surface seawater Ba. The results indicate that coral Ba/Ca ratios can serve as a proxy for seawater Ba concentrations, and anthropogenic activities may elevate Ba levels. The study contributes to understanding the complex biogeochemical cycling of marine Ba.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Meteorology & Atmospheric Sciences
Yicheng Chen, Fangguo Zhai, Peiliang Li, Yanzhen Gu, Kejian Wu
Summary: A severe coral bleaching event occurred in the Beibu Gulf in summer 2020 due to record-breaking warm sea surface temperature anomalies in the northern South China Sea. The anomalies were linked to anomalous anticyclones in the region caused by Indian Ocean warming and La Niña. Eastern winds resulting from Kelvin wave response to Indian Ocean warming led to the formation of the anticyclones, which also increased moisture fluxes and convection in the Maritime Continent. The increased incident shortwave radiation from the anticyclones was the major contributor to the warming in the northern South China Sea.
JOURNAL OF CLIMATE
(2022)
Article
Geography, Physical
Yuxuan Wei, Wenfeng Deng, Jinlong Ma, Xuefei Chen, Ti Zeng, Gangjian Wei
Summary: This study investigated the climate and environmental significance of stable strontium isotope composition (delta Sr-88) in coral skeletons. The results showed that delta Sr-88 values were not significantly correlated with factors like sea surface temperature, but showed a significant correlation with total solar irradiance (TSI). TSI may play a major role in controlling coral delta Sr-88 values at the study site.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Geography, Physical
Hao Wang, Kefu Yu, Shichen Tao, Shendong Xu, Tsai-Luen Yu, Chuan-Chou Shen, Shaopeng Wang
Summary: The study found evidence of coral thermal bleaching events during the mid-late Holocene in the Wenchang fringing reef of Hainan Island in the northern South China Sea. The coral mortality and growth discontinuities were associated with high sea-surface temperature and salinity, leading to a decrease in photosynthesis intensity. However, the observed recovery of corals after bleaching events suggests that they are capable of rehabilitation under severe environmental stresses.
GLOBAL AND PLANETARY CHANGE
(2021)
Article
Environmental Sciences
Tianran Chen, Shu Li, Jianxin Zhao, Yuexing Feng
Summary: Inshore coral habitats are facing high risks of loss due to climate warming and regional-scale human impacts. Using uranium-thorium dating, researchers reconstructed a history of extensive coral loss and changes in coral community structure over approximately 100 years at Weizhou Island. Major coral mortalities have increased in frequency and severity since the 1950s, with peaks in 1960, 1984, and 1998. The study highlights the importance of addressing degradation and controlling chronic disturbances to sustain inshore coral habitats like those of Weizhou Island in the northern South China Sea.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Marine & Freshwater Biology
James T. Price, Rowan H. McLachlan, Christopher P. Jury, Robert J. Toonen, Michael J. Wilkins, Andrea G. Grottoli
Summary: This study explores the variability in the microbial community composition of four coral species across different collection sites on the island of O'ahu in Hawai'i. The composition of coral-associated microbial communities is more closely related to coral physiology than environmental parameters, with coral lipid and protein levels playing significant roles. Changes in coral resource use, particularly in energy reserves and heterotrophic capacity, could potentially lead to shifts in microbial community diversity in response to global climate change.
Article
Engineering, Environmental
Xingyuan Wu, Wei Jiang, Kefu Yu, Shendong Xu, Haodan Yang, Ning Wang, Chaoshuai Wei, Chunmei Feng, Yinan Sun, Sirong Xie
Summary: The study utilized a coral record from the South China Sea to reconstruct Ni distribution patterns, showing significant fluctuations in Ni/Ca ratios over different years, especially multiple mutation peaks from 1984 to 1993, indicating Ni discharge events and demonstrating its potential in recording oil spill episodes.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Review
Dermatology
Shuang Chen, Luyao Tang, Meng Xu, Tianran Chen, Shouliang Zhao, Muqing Liu, Shangfeng Liu
Summary: The use of LED-based photodynamic therapies in treating periodontitis is increasing due to their effectiveness, safety, and painless nature. These therapies do not lead to drug resistance or environmental issues and are often used in combination with pharmacological measures to optimize therapeutic outcomes. LEDs are being widely used in periodontology for their efficacy in treating periodontitis.
PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE
(2022)
Article
Environmental Sciences
Shaohua Mo, Tianran Chen, Zesheng Chen, Wenjing Zhang, Shu Li
Summary: Marginal coral reefs in the northern South China Sea are experiencing increasing frequency and intensity of marine heatwaves, leading to significant thermal stress and bleaching events. These reefs lack long-term thermal refugia.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Multidisciplinary Sciences
Heng Lu, Tianran Chen, Yiran Wang, Yuwei He, Zhiqing Pang, Yajie Wang
Summary: A dual-targeting micelle drug delivery system was developed to overcome the blood-brain barrier and successfully deliver paclitaxel and lapatinib to breast cancer brain metastases, extending the lifespan of mouse models.
SCIENTIFIC REPORTS
(2022)
Article
Mathematics, Applied
Robert Davis, Tianran Chen
Summary: Adjacency polytopes are naturally occurring in the study of nonlinear emergent phenomena in complex networks. This article focuses on the PQ-type adjacency polytope, which encodes combinatorial information about power-flow solutions in sparse power networks. The normalized volume of this polytope provides an upper bound on the number of distinct power-flow solutions. The article presents formulas for computing the normalized volumes for different types of graphs, and also identifies certain planar graphs that are worth further study.
ELECTRONIC JOURNAL OF COMBINATORICS
(2022)
Article
Cell Biology
Hui Kong, Hongran Zhao, Tianran Chen, Yanling Song, Yan Cui
Summary: 3TC has anti-inflammatory effects and can reduce inflammation, apoptosis, and pyroptosis by inhibiting the P2X7/NLRP3 pathway in diabetic retinopathy.
CELL DEATH & DISEASE
(2022)
Article
Endocrinology & Metabolism
Hongran Zhao, Hui Kong, Bozhao Wang, Sihui Wu, Tianran Chen, Yan Cui
Summary: This study explores the relevant mechanisms in diabetic retinopathy (DR) through the analysis of differentially expressed genes, RNA-binding proteins (RBPs) and alternative splicing events (ASEs). Through coexpression analysis and functional enrichment analysis, several signaling pathways closely related to DR were identified. The differential expression of RBPs was validated in a mouse model, suggesting their potential as biomarkers and targets for DR.
JOURNAL OF DIABETES RESEARCH
(2022)
Article
Public, Environmental & Occupational Health
Yao Tang, Tianran Chen, Yuan Zhao, Farhad Taghizadeh-Hesary
Summary: This study used CHARLS data and the DID method to evaluate the impact of the Long-Term Care Insurance policy on the medical expenses and health status of middle-aged and elder population. The empirical results show that LTCI implementation effectively reduced outpatient and inpatient visits and expenses, while also improving self-rated health and mental health.
FRONTIERS IN PUBLIC HEALTH
(2022)
Article
Nanoscience & Nanotechnology
Min Wu, Tao Jing, Jingzhi Tian, Haiyan Qi, Danni Shi, Chunqi Zhao, Tianran Chen, Zhiyuan Zhao, Ping Zhang, Zhanhu Guo
Summary: In this study, a photoelectrochemical aptasensing system based on Ag/bismuth oxyiodide/TiO2 nanorod array was developed for specific detection of chloramphenicol. The system showed good detection performance within a linear response range, high selectivity, and a low detection limit.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Engineering, Mechanical
Tianran Chen, Robert Davis
Summary: The study focuses on frequency synchronization configurations in Kuramoto models for networks of coupled oscillators with a cycle graph as the underlying graph. A constructive toric deformation homotopy method is proposed to locate all frequency synchronization configurations with linear complexity. The proposed method has advantages over existing homotopy methods in terms of computational cost and solving time.
NONLINEAR DYNAMICS
(2022)
Article
Mathematics
Tianran Chen
Summary: In this paper, a simple proof is provided to show the equality between the normalized volume of a convex polytope with m vertices and the mixed volume of m simplices. This demonstrates that computing the mixed volume of simplices, which may appear to be restrictive, is at least as challenging as computing volumes of convex polytopes in general.
ARCHIV DER MATHEMATIK
(2023)
Article
Mathematics, Applied
Tianran Chen, Robert Davis, Evgeniia Korchevskaia
Summary: Symmetric edge polytopes, also known as PV-type adjacency polytopes, associated with undirected graphs, have been defined and studied in multiple seemingly independent areas such as number theory, discrete geometry, and dynamical systems. The geometric structure of symmetric edge polytopes and the topological structure of the underlying graphs have been extensively studied and the correspondence between facets/faces of a symmetric edge polytope and maximal bipartite subgraphs of the underlying connected graph has been fully described.
DISCRETE APPLIED MATHEMATICS
(2023)
Article
Chemistry, Physical
Wencan Hu, Kailong He, Siman Wu, Tianran Chen, Xiaoyuan Yu, Yeru Liang, Mingtao Zheng, Yong Xiao, Hanwu Dong, Yingliang Liu, Hang Hu
Summary: In this study, a novel ordered sandwich-structured nanocomposite consisting of Fe3O4, silicon quantum dots (Si-QDs), and reduced graphene oxide (rGO) is synthesized. Si-QDs play a vital role in guiding the uniform formation and distribution of nano-sized Fe3O4 on rGO nanosheets. The resulting Si-QDs/Fe3O4/rGO composite exhibits high specific capacity, excellent cycling stability, and rate capability. This work provides insights into the effect of Si-QDs on the morphology, structure, and electrochemical performances of the composite.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Environmental Sciences
Ting Zhang, Tianran Chen, Sheng Liu, Xianzhi Lin, Shu Li, Wen Yan
Summary: This study investigates the temporal variability in reef resilience of the Nansha atolls in the tropical western Pacific by integrating paleo-ecological reconstruction, historical mortality evidence, and ecological survey data. The results show long-term stability in community structure and persistence of reef resilience, with no evidence of community shifts attributable to centennial-scale changes in El Nino variability. However, recent ecological surveys reveal a major collapse in the reef ecosystem, particularly related to strong/extreme El Nino episodes.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Oncology
Ning Ma, Tianran Chen, Yingyi Zhang, Longpei Chen, Jie Li, Xiaobo Peng, Yajie Wang, Dongxun Zhou, Bin Wang
Summary: This study revealed that ICOSL expression is associated with relapse-free survival in TNBC and positively correlated with Treg abundance. Overexpression of ICOSL induced T cell differentiation into Foxp3+ Treg cells and promoted secretion of tumor-promoting factors. Additionally, ICOSL expression reversed p38 pathway activation and enhanced proliferation, invasion, and metastasis of TNBC cells.
AMERICAN JOURNAL OF CANCER RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Yu Tao, Douglas L. Abernathy, Tianran Chen, Taner Yildirim, Jiaqiang Yan, Jianshi Zhou, John B. Goodenough, Despina Louca
Summary: The role of spin, lattice, and orbital correlations in the structural and magnetic transitions of the Mott insulator YVO3 were explored as a function of temperature. The transitions were investigated through inelastic neutron scattering and first-principles calculations, and the magnetic exchange constants were deduced. Fluctuations in the phonon density of states were observed during the spin transition.