529 results on '"Ye, Fei"'
Search Results
2. An efficient approach for mesoscale fracture modeling of fully-graded hydraulic concrete
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Lei Xu, Lei Jiang, Ye-fei Huang, and Qing-wen Ren
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Ocean Engineering ,Civil and Structural Engineering - Published
- 2022
3. Sub-10 nm Corrugated TiO2 Nanowire Arrays by Monomicelle-Directed Assembly for Efficient Hole Extraction
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Pengfei Zhang, Zhangliu Tian, Yikun Kang, Bowen He, Zaiwang Zhao, Chin-Te Hung, Linlin Duan, Wei Chen, Yun Tang, Jiaguo Yu, Liqiang Mai, Ye-Fei Li, Wei Li, and Dongyuan Zhao
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Colloid and Surface Chemistry ,General Chemistry ,Biochemistry ,Catalysis - Published
- 2022
4. Intra-brachial ergonovine, not acetylcholine, is associated with radial artery vasospasm in patients with coronary vasospasm
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Ye-Yu, Wu, Wei-Wei, Mao, Ye-Fei, Li, Qing, Zhang, Bo, Zhang, and Zhen-Qiang, Sheng
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General Medicine ,Cardiology and Cardiovascular Medicine - Abstract
The intracoronary provocation test is expensive and may cause complications. Therefore, we investigated the sensitivity, specificity and safety of different drug- and dose-peripheral artery provocation tests in the diagnosis of coronary artery spasm (CAS).The patients who had repeated chest pain as well as both coronary and radial stenoses50% were selected. These patients were divided into CAS group (In radial acetylcholine provocation tests, 200 µg of acetylcholine failed to induce radial artery spasm, and the radial artery stenosis degree was not significantly different between the CAS group and control group at 400 µg and 800 µg of acetylcholine (allThe radial acetylcholine provocation test has no diagnostic value for CAS. The radial 160 µg-ergonovine provocation test has higher sensitivity and specificity for CAS diagnosis, but its safety should be paid attention to.
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- 2022
5. Reconstructing 6-hourly PM2.5 datasets from 1960 to 2020 in China
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Junting Zhong, Xiaoye Zhang, Ke Gui, Jie Liao, Ye Fei, Lipeng Jiang, Lifeng Guo, Liangke Liu, Huizheng Che, Yaqiang Wang, Deying Wang, and Zijiang Zhou
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General Earth and Planetary Sciences - Abstract
Fine particulate matter (PM2.5) has altered the radiation balance on Earth and raised environmental and health risks for decades but has only been monitored widely since 2013 in China. Historical long-term PM2.5 records with high temporal resolution are essential but lacking for both research and environmental management. Here, we reconstruct a site-based PM2.5 dataset at 6 h intervals from 1960 to 2020 that combines long-term visibility, conventional meteorological observations, emissions, and elevation. The PM2.5 concentration at each site is estimated based on an advanced machine learning model, LightGBM, that takes advantage of spatial features from 20 surrounding meteorological stations. Our model's performance is comparable to or even better than those of previous studies in by-year cross validation (CV) (R2=0.7) and spatial CV (R2=0.76) and is more advantageous in long-term records and high temporal resolution. This model also reconstructs a 0.25∘ × 0.25∘, 6-hourly, gridded PM2.5 dataset by incorporating spatial features. The results show PM2.5 pollution worsens gradually or maintains before 2010 from an interdecadal scale but mitigates in the following decade. Although the turning points vary in different regions, PM2.5 mass concentrations in key regions decreased significantly after 2013 due to clean air actions. In particular, the annual average value of PM2.5 in 2020 is nearly the lowest since 1960. These two PM2.5 datasets (publicly available at https://doi.org/10.5281/zenodo.6372847, Zhong et al., 2022) provide spatiotemporal variations at high resolution, which lay the foundation for research studies associated with air pollution, climate change, and atmospheric chemical reanalysis.
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- 2022
6. Permeability and heterogeneity adaptability of surfactant-alternating-gas foam for recovering oil from low-permeability reservoirs
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Ming-Chen Ding, Qiang Li, Yu-Jing Yuan, Ye-Fei Wang, Ning Zhao, and Yu-Gui Han
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Geophysics ,Fuel Technology ,Geochemistry and Petrology ,Energy Engineering and Power Technology ,Economic Geology ,Geology ,Geotechnical Engineering and Engineering Geology - Published
- 2022
7. Supplemental Materials and Methods from KRAS/NF-κB/YY1/miR-489 Signaling Axis Controls Pancreatic Cancer Metastasis
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Mo-Fang Liu, Wenhui Lou, Dangsheng Li, Yingbin Liu, Yun-Ping Hu, Yong Li, Jing Cao, Ye-Fei Rong, Xiao-Hong He, and Peng Yuan
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This file contains Materials and Methods that are involved in the figures of the main text and supplementary information. These materials and methods include information of plasmid constructs, cell transfection and viral transduction, RNA preparation and qRT-PCR, luciferase reporter assay, ChIP assay, therapeutic experiments in mice, and immunohistochemistry and in situ hybridization.
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- 2023
8. Supplemental Figures and table from KRAS/NF-κB/YY1/miR-489 Signaling Axis Controls Pancreatic Cancer Metastasis
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Mo-Fang Liu, Wenhui Lou, Dangsheng Li, Yingbin Liu, Yun-Ping Hu, Yong Li, Jing Cao, Ye-Fei Rong, Xiao-Hong He, and Peng Yuan
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This file contains 6 figures (Supplementary Fig. S1-6) and 1 table (Supplementary Table S1). These figures and table provide additional, directly relevant, and unrepeated information for the article content. In brief, Supplementary Figures S1 and S3 indicate that miR-489 is an effector downstream of KRAS signaling; Supplementary Figures S2 and S5 show that miR-489:ADAM9/MMP7 axis doesn't confer the cell proliferation regulation of KRAS signaling; Supplementary Figure S4 highlights the promoting function of ADAM9 and MMP7 in PDAC metastasis; Supplementary Figure S6 is the additional information of Figure 6 in the main text; and Supplementary Table S1 shows the sequences of chemically synthesized DNA and RNA oligonucleotides. These data are equal in quality and presentation to materials within the main article.
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- 2023
9. Data from KRAS/NF-κB/YY1/miR-489 Signaling Axis Controls Pancreatic Cancer Metastasis
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Mo-Fang Liu, Wenhui Lou, Dangsheng Li, Yingbin Liu, Yun-Ping Hu, Yong Li, Jing Cao, Ye-Fei Rong, Xiao-Hong He, and Peng Yuan
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KRAS activation occurring in more than 90% of pancreatic ductal adenocarcinomas (PDAC) drives progression and metastasis, but the underlying mechanisms involved in these processes are still poorly understood. Here, we show how KRAS acts through inflammatory NF-κB signaling to activate the transcription factor YY1, which represses expression of the tumor suppressor gene miR-489. In PDAC cells, repression of miR-489 by KRAS signaling inhibited migration and metastasis by targeting the extracellular matrix factors ADAM9 and MMP7. miR-489 downregulation elevated levels of ADAM9 and MMP7, thereby enhancing the migration and metastasis of PDAC cells. Together, our results establish a pivotal mechanism of PDAC metastasis and suggest miR-489 as a candidate therapeutic target for their attack. Cancer Res; 77(1); 100–11. ©2016 AACR.
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- 2023
10. Learning Harmonic Molecular Representations on Riemannian Manifold
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Wang, Yiqun, Shen, Yuning, Chen, Shi, Wang, Lihao, Ye, Fei, and Zhou, Hao
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FOS: Computer and information sciences ,Computer Science - Machine Learning ,Artificial Intelligence (cs.AI) ,Computer Science - Artificial Intelligence ,FOS: Biological sciences ,Quantitative Biology - Quantitative Methods ,Quantitative Methods (q-bio.QM) ,Machine Learning (cs.LG) - Abstract
Molecular representation learning plays a crucial role in AI-assisted drug discovery research. Encoding 3D molecular structures through Euclidean neural networks has become the prevailing method in the geometric deep learning community. However, the equivariance constraints and message passing in Euclidean space may limit the network expressive power. In this work, we propose a Harmonic Molecular Representation learning (HMR) framework, which represents a molecule using the Laplace-Beltrami eigenfunctions of its molecular surface. HMR offers a multi-resolution representation of molecular geometric and chemical features on 2D Riemannian manifold. We also introduce a harmonic message passing method to realize efficient spectral message passing over the surface manifold for better molecular encoding. Our proposed method shows comparable predictive power to current models in small molecule property prediction, and outperforms the state-of-the-art deep learning models for ligand-binding protein pocket classification and the rigid protein docking challenge, demonstrating its versatility in molecular representation learning., 25 pages including Appendix
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- 2023
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11. Structure-informed Language Models Are Protein Designers
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Zheng, Zaixiang, Deng, Yifan, Xue, Dongyu, Zhou, Yi, YE, Fei, and Gu, Quanquan
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FOS: Computer and information sciences ,Computer Science - Machine Learning ,Machine Learning (cs.LG) - Abstract
This paper demonstrates that language models are strong structure-based protein designers. We present LM-Design, a generic approach to reprogramming sequence-based protein language models (pLMs), that have learned massive sequential evolutionary knowledge from the universe of natural protein sequences, to acquire an immediate capability to design preferable protein sequences for given folds. We conduct a structural surgery on pLMs, where a lightweight structural adapter is implanted into pLMs and endows it with structural awareness. During inference, iterative refinement is performed to effectively optimize the generated protein sequences. Experiments show that LM-Design improves the state-of-the-art results by a large margin, leading to up to 4% to 12% accuracy gains in sequence recovery (e.g., 55.65%/56.63% on CATH 4.2/4.3 single-chain benchmarks, and >60% when designing protein complexes). We provide extensive and in-depth analyses, which verify that LM-Design can (1) indeed leverage both structural and sequential knowledge to accurately handle structurally non-deterministic regions, (2) benefit from scaling data and model size, and (3) generalize to other proteins (e.g., antibodies and de novo proteins), 10 pages; ver.2 update: added image credit to RFdiffusion (Watson et al., 2022) in Fig. 1F, and fixed some small presentation errors
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- 2023
12. PERK Regulates the Sensitivity of Hepatocellular Carcinoma Cells to High-LET Carbon Ions via either Apoptosis or Ferroptosis
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Zheng, Xiaogang, Liu, Bingtao, Liu, Xiongxiong, Li, Ping, Zhang, Pengcheng, Ye, Fei, Zhao, Ting, Kuang, Yanbei, Chen, Weiqiang, Jin, Xiaodong, and Li, Qiang
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PERK ,autophagy ,Oncology ,ER stress ,digestive system diseases ,ferroptosis ,Research Paper ,carbon ion - Abstract
PERK is one of the transmembrane sensors of unfolded protein response (UPR) triggered by ER stress. In this study, we evaluated the role of PERK in the sensitivity of hepatocellular carcinoma (HCC) cells to high linear energy transfer (LET) carbon ions (CI). We found that CI irradiation could induce ER stress in HCC cells. On the one hand, PERK promoted autophagy via regulating ATF4 expression; on the other hand, PERK regulated p53 expression, and the latter either induced autophagy through up-regulating DRAM, or directly promoting apoptosis through the mitochondrial pathway or facilitating ferroptosis via down-regulating SLC7A11 (the extrinsic pathway), but independent of GPX4 (the intrinsic pathway). These factors jointly determined the sensitivity of HCC cells to high-LET CI radiation. Inhibiting TP53 directly increased cellular radioresistance definitely. Moreover, the death of HepG2 (TP53 wild type) cells induced by high-LET CI irradiation combined with sorafenib treatment might be caused by a mixed-type regulated cell death (RCD) including both apoptosis and ferroptosis, suggesting that apoptosis and ferroptosis are synergetic cell death modes regulated by TP53, which is one of the reasons why the sensitivity of HepG2 cells is higher than that of Hep3B (TP53 null type) and PLC/PRF5 (TP53 mutated type) cells. Therefore, our work might shed light on the potential therapeutic implication of CI radiotherapy combined with PERK targeted clinical drugs to implement personalized and precise treatment of HCCs.
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- 2022
13. Additional file 1 of Trends in respiratory diseases before and after the COVID-19 pandemic in China from 2010 to 2021
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Zuo, Zhongbao, Yang, Chunli, Ye, Fei, Wang, Miaochan, Wu, Jing, Tao, Chengjiang, Xun, Yunhao, Li, Zhaoyi, Liu, Shourong, Huang, Jinsong, and Xu, Aifang
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Additional file 1: Supplementary Table S1. Each month’s Relative reduction of seven respiratory diseases in 2020 and 2021. Supplementary Table S2. Sensitivity analysis for model-estimated incidence rate ratio (IRR) of seven Respiratory infectious diseases.
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- 2023
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14. Additional file 3 of Short-term environmental nitrogen dioxide exposure and neurology clinic visits for headaches, a time-series study in Wuhan, China
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Xu, Haoyue, Xu, Min, JC, Zheng, Ye, Fei, Liu, Xiaozhou, Liu, Yumin, and Jin, Xiaoqing
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Additional file 3. Percentage changed (mean and 95% CI) in NCVs fir headaches associated with a 10 µg/m3 increase in consentrations of NO2 at lag03 using different df in the natural cubic splines of temperature, humidity, and pressure.
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- 2023
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15. Additional file 1 of Neutralizing antibody levels associated with injectable and aerosolized Ad5-nCoV boosters and BA.2 infection
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Wang, Fuzhen, Huang, Baoying, Deng, Yao, Zhang, Shaobai, Liu, Xiaoqiang, Wang, Lei, Liu, Qianqian, Zhao, Li, Tang, Lin, Wang, Wenling, Wang, Xiaoqi, Ye, Fei, Hu, Weijun, Yang, Haitao, Wang, Siquan, Ren, Jiao, Liu, Xiaoyu, Wang, Cangning, Guan, Xuhua, Wang, Ruize, Zheng, Yan, Zhang, Xianfeng, Zheng, Hui, Wu, Dan, An, Zhijie, Xu, Wenbo, Rodewald, Lawrence E., Gao, George F., Yin, Zundong, and Tan, Wenjie
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Additional file 1: Table S1. Immune responses against ancestral virus, BA.1 and BA.5of prime-booster groups by gender. Table S2. Immune responses against ancestralvirus, BA.1 and BA.5 of prime-booster groups by Body Mass Index group.
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- 2023
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16. Additional file 2 of Short-term environmental nitrogen dioxide exposure and neurology clinic visits for headaches, a time-series study in Wuhan, China
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Xu, Haoyue, Xu, Min, JC, Zheng, Ye, Fei, Liu, Xiaozhou, Liu, Yumin, and Jin, Xiaoqing
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Additional file 2. Percentage change (mean and 95%CI) in NCVs for headache associated with a 10 μg/m3 increase in concentrations of NO2 at lag03 using different degrees of freedom per day.
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- 2023
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17. Comparison of Polarized Radiative Transfer Codes used by the EHT Collaboration
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Prather, Ben S., Dexter, Jason, Moscibrodzka, Monika, Pu, Hung-Yi, Bronzwaer, Thomas, Davelaar, Jordy, Younsi, Ziri, Gammie, Charles F., Gold, Roman, Wong, George N., Akiyama, Kazunori, Alberdi, Antxon, Alef, Walter, Algaba, Juan Carlos, Anantua, Richard, Asada, Keiichi, Azulay, Rebecca, Bach, Uwe, Baczko, Anne-Kathrin, Ball, David, Baloković, Mislav, Barrett, John, Bauböck, Michi, Benson, Bradford A., Bintley, Dan, Blackburn, Lindy, Blundell, Raymond, Bouman, Katherine L., Bower, Geoffrey C., Boyce, Hope, Bremer, Michael, Brinkerink, Christiaan D., Brissenden, Roger, Britzen, Silke, Broderick, Avery E., Broguiere, Dominique, Bustamante, Sandra, Byun, Do-Young, Carlstrom, John E., Ceccobello, Chiara, Chael, Andrew, Chan, Chi-kwan, Chang, Dominic O., Chatterjee, Koushik, Chatterjee, Shami, Chen, Ming-Tang, Chen, Yongjun, Cheng, Xiaopeng, Cho, Ilje, Christian, Pierre, Conroy, Nicholas S., Conway, John E., Cordes, James M., Crawford, Thomas M., Crew, Geoffrey B., Cruz-Osorio, Alejandro, Cui, Yuzhu, De Laurentis, Mariafelicia, Deane, Roger, Dempsey, Jessica, Desvignes, Gregory, Dhruv, Vedant, Doeleman, Sheperd S., Dougal, Sean, Dzib, Sergio A., Eatough, Ralph P., Emami, Razieh, Falcke, Heino, Farah, Joseph, Fish, Vincent L., Fomalont, Ed, Ford, H. Alyson, Fraga-Encinas, Raquel, Freeman, William T., Friberg, Per, Fromm, Christian M., Fuentes, Antonio, Galison, Peter, García, Roberto, Gentaz, Olivier, Georgiev, Boris, Goddi, Ciriaco, Gómez-Ruiz, Arturo I., Gómez, José L., Gu, Minfeng, Gurwell, Mark, Hada, Kazuhiro, Haggard, Daryl, Haworth, Kari, Hecht, Michael H., Hesper, Ronald, Heumann, Dirk, Ho, Luis C., Ho, Paul, Honma, Mareki, Huang, Chih-Wei L., Huang, Lei, Hughes, David H., Ikeda, Shiro, Impellizzeri, C. M. Violette, Inoue, Makoto, Issaoun, Sara, James, David J., Jannuzi, Buell T., Janssen, Michael, Jeter, Britton, Jiang, Wu, Jiménez-Rosales, Alejandra, Johnson, Michael D., Jorstad, Svetlana, Joshi, Abhishek V., Jung, Taehyun, Karami, Mansour, Karuppusamy, Ramesh, Kawashima, Tomohisa, Keating, Garrett K., Kettenis, Mark, Kim, Dong-Jin, Kim, Jae-Young, Kim, Jongsoo, Kim, Junhan, Kino, Motoki, Koay, Jun Yi, Kocherlakota, Prashant, Kofuji, Yutaro, Koyama, Shoko, Kramer, Carsten, Kramer, Michael, Krichbaum, Thomas P., Kuo, Cheng-Yu, La Bella, Noemi, Lauer, Tod R., Lee, Daeyoung, Lee, Sang-Sung, Leung, Po Kin, Levis, Aviad, Li, Zhiyuan, Lico, Rocco, Lindahl, Greg, Lindqvist, Michael, Lisakov, Mikhail, Liu, Jun, Liu, Kuo, Liuzzo, Elisabetta, Lo, Wen-Ping, Lobanov, Andrei P., Loinard, Laurent, Lonsdale, Colin J., Lu, Ru-Sen, MacDonald, Nicholas R., Mao, Jirong, Marchili, Nicola, Markoff, Sera, Marrone, Daniel P., Marscher, Alan P., Martí-Vidal, Iván, Matsushita, Satoki, Matthews, Lynn D., Medeiros, Lia, Menten, Karl M., Michalik, Daniel, Mizuno, Izumi, Mizuno, Yosuke, Moran, James M., Moriyama, Kotaro, Müller, Cornelia, Mus, Alejandro, Musoke, Gibwa, Myserlis, Ioannis, Nadolski, Andrew, Nagai, Hiroshi, Nagar, Neil M., Nakamura, Masanori, Narayan, Ramesh, Narayanan, Gopal, Natarajan, Iniyan, Nathanail, Antonios, Fuentes, Santiago Navarro, Neilsen, Joey, Neri, Roberto, Ni, Chunchong, Noutsos, Aristeidis, Nowak, Michael A., Oh, Junghwan, Okino, Hiroki, Olivares, Héctor, Ortiz-León, Gisela N., Oyama, Tomoaki, Özel, Feryal, Palumbo, Daniel C. M., Paraschos, Georgios Filippos, Park, Jongho, Parsons, Harriet, Patel, Nimesh, Pen, Ue-Li, Pesce, Dominic W., Piétu, Vincent, Plambeck, Richard, PopStefanija, Aleksandar, Porth, Oliver, Pötzl, Felix M., Preciado-López, Jorge A., Psaltis, Dimitrios, Ramakrishnan, Venkatessh, Rao, Ramprasad, Rawlings, Mark G., Raymond, Alexander W., Rezzolla, Luciano, Ricarte, Angelo, Ripperda, Bart, Roelofs, Freek, Rogers, Alan, Ros, Eduardo, Romero-Cañizales, Cristina, Roshanineshat, Arash, Rottmann, Helge, Roy, Alan L., Ruiz, Ignacio, Ruszczyk, Chet, Rygl, Kazi L. J., Sánchez, Salvador, Sánchez-Argüelles, David, Sánchez-Portal, Miguel, Sasada, Mahito, Satapathy, Kaushik, Savolainen, Tuomas, Schloerb, F. Peter, Schonfeld, Jonathan, Schuster, Karl-Friedrich, Shao, Lijing, Shen, Zhiqiang, Small, Des, Sohn, Bong Won, SooHoo, Jason, Souccar, Kamal, Sun, He, Tazaki, Fumie, Tetarenko, Alexandra J., Tiede, Paul, Tilanus, Remo P. J., Titus, Michael, Torne, Pablo, Traianou, Efthalia, Trent, Tyler, Trippe, Sascha, Turk, Matthew, van Bemmel, Ilse, van Langevelde, Huib Jan, van Rossum, Daniel R., Vos, Jesse, Wagner, Jan, Ward-Thompson, Derek, Wardle, John, Weintroub, Jonathan, Wex, Norbert, Wharton, Robert, Wielgus, Maciek, Wiik, Kaj, Witzel, Gunther, Wondrak, Michael F., Wu, Qingwen, Yamaguchi, Paul, Yfantis, Aristomenis, Yoon, Doosoo, Young, André, Young, Ken, Yu, Wei, Yuan, Feng, Yuan, Ye-Fei, Zensus, J. Anton, Zhang, Shuo, Zhao, Guang-Yao, and Zhao, Shan-Shan
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High Energy Astrophysical Phenomena (astro-ph.HE) ,FOS: Physical sciences ,Astrophysics - High Energy Astrophysical Phenomena - Abstract
Interpretation of resolved polarized images of black holes by the Event Horizon Telescope (EHT) requires predictions of the polarized emission observable by an Earth-based instrument for a particular model of the black hole accretion system. Such predictions are generated by general relativistic radiative transfer (GRRT) codes, which integrate the equations of polarized radiative transfer in curved spacetime. A selection of ray-tracing GRRT codes used within the EHT collaboration is evaluated for accuracy and consistency in producing a selection of test images, demonstrating that the various methods and implementations of radiative transfer calculations are highly consistent. When imaging an analytic accretion model, we find that all codes produce images similar within a pixel-wise normalized mean squared error (NMSE) of 0.012 in the worst case. When imaging a snapshot from a cell-based magnetohydrodynamic simulation, we find all test images to be similar within NMSEs of 0.02, 0.04, 0.04, and 0.12 in Stokes I, Q, U , and V respectively. We additionally find the values of several image metrics relevant to published EHT results to be in agreement to much better precision than measurement uncertainties., Comment: Accepted for publication in ApJ
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- 2023
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18. Additional file 4 of Short-term environmental nitrogen dioxide exposure and neurology clinic visits for headaches, a time-series study in Wuhan, China
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Xu, Haoyue, Xu, Min, JC, Zheng, Ye, Fei, Liu, Xiaozhou, Liu, Yumin, and Jin, Xiaoqing
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Additional file 4. The meteorological introduction and geographical description of Wuhan.
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- 2023
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19. Additional file 1 of Short-term environmental nitrogen dioxide exposure and neurology clinic visits for headaches, a time-series study in Wuhan, China
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Xu, Haoyue, Xu, Min, JC, Zheng, Ye, Fei, Liu, Xiaozhou, Liu, Yumin, and Jin, Xiaoqing
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Additional file 1. Percent change (mean and 95% CI) in NCVs for headaches associated with a 10-μg/m3 increase in concentrations of NO2 using different lag structures.
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- 2023
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20. Study on Performance of Shotcrete Reinforced by Admixture Under Calcium Dissolution and Crystallization Environment in Tunnel
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Ye Fei, Tong Yueping, Tian Chongming, Jiang Yin, Zhang Junyuan, and Han Xingbo
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- 2023
21. The Event Horizon Telescope Image of the Quasar NRAO 530
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Svetlana Jorstad, Maciek Wielgus, Rocco Lico, Sara Issaoun, Avery E. Broderick, Dominic W. Pesce, Jun Liu, Guang-Yao Zhao, Thomas P. Krichbaum, Lindy Blackburn, Chi-kwan Chan, Michael Janssen, Venkatessh Ramakrishnan, Kazunori Akiyama, Antxon Alberdi, Juan Carlos Algaba, Katherine L. Bouman, Ilje Cho, Antonio Fuentes, José L. Gómez, Mark Gurwell, Michael D. Johnson, Jae-Young Kim, Ru-Sen Lu, Iván Martí-Vidal, Monika Moscibrodzka, Felix M. Pötzl, Efthalia Traianou, Ilse van Bemmel, Walter Alef, Richard Anantua, Keiichi Asada, Rebecca Azulay, Uwe Bach, Anne-Kathrin Baczko, David Ball, Mislav Baloković, John Barrett, Michi Bauböck, Bradford A. Benson, Dan Bintley, Raymond Blundell, Geoffrey C. Bower, Hope Boyce, Michael Bremer, Christiaan D. Brinkerink, Roger Brissenden, Silke Britzen, Dominique Broguiere, Thomas Bronzwaer, Sandra Bustamante, Do-Young Byun, John E. Carlstrom, Chiara Ceccobello, Andrew Chael, Koushik Chatterjee, Shami Chatterjee, Ming-Tang Chen, Yongjun Chen, Xiaopeng Cheng, Pierre Christian, Nicholas S. Conroy, John E. Conway, James M. Cordes, Thomas M. Crawford, Geoffrey B. Crew, Alejandro Cruz-Osorio, Yuzhu Cui, Jordy Davelaar, Mariafelicia De Laurentis, Roger Deane, Jessica Dempsey, Gregory Desvignes, Jason Dexter, Vedant Dhruv, Sheperd S. Doeleman, Sean Dougal, Sergio A. Dzib, Ralph P. Eatough, Razieh Emami, Heino Falcke, Joseph Farah, Vincent L. Fish, Ed Fomalont, H. Alyson Ford, Raquel Fraga-Encinas, William T. Freeman, Per Friberg, Christian M. Fromm, Peter Galison, Charles F. Gammie, Roberto García, Olivier Gentaz, Boris Georgiev, Ciriaco Goddi, Roman Gold, Arturo I. Gómez-Ruiz, Minfeng Gu, Kazuhiro Hada, Daryl Haggard, Kari Haworth, Michael H. Hecht, Ronald Hesper, Dirk Heumann, Luis C. Ho, Paul Ho, Mareki Honma, Chih-Wei L. Huang, Lei Huang, David H. Hughes, Shiro Ikeda, C. M. Violette Impellizzeri, Makoto Inoue, David J. James, Buell T. Jannuzi, Britton Jeter, Wu Jiang, Alejandra Jiménez-Rosales, Abhishek V. Joshi, Taehyun Jung, Mansour Karami, Ramesh Karuppusamy, Tomohisa Kawashima, Garrett K. Keating, Mark Kettenis, Dong-Jin Kim, Jongsoo Kim, Junhan Kim, Motoki Kino, Jun Yi Koay, Prashant Kocherlakota, Yutaro Kofuji, Shoko Koyama, Carsten Kramer, Michael Kramer, Cheng-Yu Kuo, Noemi La Bella, Tod R. Lauer, Daeyoung Lee, Sang-Sung Lee, Po Kin Leung, Aviad Levis, Zhiyuan Li, Greg Lindahl, Michael Lindqvist, Mikhail Lisakov, Kuo Liu, Elisabetta Liuzzo, Wen-Ping Lo, Andrei P. Lobanov, Laurent Loinard, Colin J. Lonsdale, Nicholas R. MacDonald, Jirong Mao, Nicola Marchili, Sera Markoff, Daniel P. Marrone, Alan P. Marscher, Satoki Matsushita, Lynn D. Matthews, Lia Medeiros, Karl M. Menten, Daniel Michalik, Izumi Mizuno, Yosuke Mizuno, James M. Moran, Kotaro Moriyama, Cornelia Müller, Alejandro Mus, Gibwa Musoke, Ioannis Myserlis, Andrew Nadolski, Hiroshi Nagai, Neil M. Nagar, Masanori Nakamura, Ramesh Narayan, Gopal Narayanan, Iniyan Natarajan, Antonios Nathanail, Santiago Navarro Fuentes, Joey Neilsen, Roberto Neri, Chunchong Ni, Aristeidis Noutsos, Michael A. Nowak, Junghwan Oh, Hiroki Okino, Héctor Olivares, Gisela N. Ortiz-León, Tomoaki Oyama, Feryal Özel, Daniel C. M. Palumbo, Georgios Filippos Paraschos, Jongho Park, Harriet Parsons, Nimesh Patel, Ue-Li Pen, Vincent Piétu, Richard Plambeck, Aleksandar PopStefanija, Oliver Porth, Ben Prather, Jorge A. Preciado-López, Dimitrios Psaltis, Hung-Yi Pu, Ramprasad Rao, Mark G. Rawlings, Alexander W. Raymond, Luciano Rezzolla, Angelo Ricarte, Bart Ripperda, Freek Roelofs, Alan Rogers, Eduardo Ros, Cristina Romero-Cañizales, Arash Roshanineshat, Helge Rottmann, Alan L. Roy, Ignacio Ruiz, Chet Ruszczyk, Kazi L. J. Rygl, Salvador Sánchez, David Sánchez-Argüelles, Miguel Sánchez-Portal, Mahito Sasada, Kaushik Satapathy, Tuomas Savolainen, F. Peter Schloerb, Jonathan Schonfeld, Karl-Friedrich Schuster, Lijing Shao, Zhiqiang Shen, Des Small, Bong Won Sohn, Jason SooHoo, Kamal Souccar, He Sun, Fumie Tazaki, Alexandra J. Tetarenko, Paul Tiede, Remo P. J. Tilanus, Michael Titus, Pablo Torne, Tyler Trent, Sascha Trippe, Matthew Turk, Huib Jan van Langevelde, Daniel R. van Rossum, Jesse Vos, Jan Wagner, Derek Ward-Thompson, John Wardle, Jonathan Weintroub, Norbert Wex, Robert Wharton, Kaj Wiik, Gunther Witzel, Michael F. Wondrak, George N. Wong, Qingwen Wu, Paul Yamaguchi, Doosoo Yoon, André Young, Ken Young, Ziri Younsi, Feng Yuan, Ye-Fei Yuan, J. Anton Zensus, Shuo Zhang, Shan-Shan Zhao, Boston University, Max Planck Institute for Radio Astronomy, CSIC - Institute of Astrophysics of Andalusia, Harvard University, Perimeter Institute for Theoretical Physics, University of Arizona, Department of Electronics and Nanoengineering, University of Malaya, California Institute of Technology, Science Support Office, Aalto-yliopisto, and Aalto University
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High Energy Astrophysical Phenomena (astro-ph.HE) ,Space and Planetary Science ,Astronomy ,Astrophysics of Galaxies (astro-ph.GA) ,FOS: Physical sciences ,Astronomy and Astrophysics ,Astrophysics - High Energy Astrophysical Phenomena ,Astrophysics - Astrophysics of Galaxies ,Mathematics - Abstract
Funding Information: The Event Horizon Telescope Collaboration thanks the following organizations and programs: the Academia Sinica; the Academy of Finland (projects 274477, 284495, 312496, 315721); the Agencia Nacional de Investigación y Desarrollo (ANID), Chile via NCN19_058 (TITANs) and Fondecyt 1221421, the Alexander von Humboldt Stiftung; an Alfred P. Sloan Research Fellowship; Allegro, the European ALMA Regional Centre node in the Netherlands, the NL astronomy research network NOVA and the astronomy institutes of the University of Amsterdam, Leiden University and Radboud University; the ALMA North America Development Fund; the black hole Initiative, which is funded by grants from the John Templeton Foundation and the Gordon and Betty Moore Foundation (although the opinions expressed in this work are those of the author(s) and do not necessarily reflect the views of these Foundations); Chandra DD7-18089X and TM6-17006X; the China Scholarship Council; China Postdoctoral Science Foundation fellowship (2020M671266); Consejo Nacional de Ciencia y Tecnología (CONACYT, Mexico, projects U0004-246083, U0004-259839, F0003-272050, M0037-279006, F0003-281692, 104497, 275201, 263356); the Consejería de Economía, Conocimiento, Empresas y Universidad of the Junta de Andalucía (grant P18-FR-1769), the Consejo Superior de Investigaciones Científicas (grant 2019AEP112); the Delaney Family via the Delaney Family John A. Wheeler Chair at Perimeter Institute; Dirección General de Asuntos del Personal Académico-Universidad Nacional Autónoma de México (DGAPA-UNAM, projects IN112417 and IN112820); the Dutch Organization for Scientific Research (NWO) VICI award (grant 639.043.513) and grant OCENW.KLEIN.113; the Dutch National Supercomputers, Cartesius and Snellius (NWO Grant 2021.013); the EACOA Fellowship awarded by the East Asia Core Observatories Association, which consists of the Academia Sinica Institute of Astronomy and Astrophysics, the National Astronomical Observatory of Japan, Center for Astronomical Mega-Science, Chinese Academy of Sciences, and the Korea Astronomy and Space Science Institute; the European Research Council (ERC) Synergy Grant “BlackHoleCam: Imaging the Event Horizon of Black Holes” (grant 610058); the European Union Horizon 2020 research and innovation program under grant agreements RadioNet (No. 730562) and M2FINDERS (No. 101018682); the Horizon ERC Grants 2021 program under grant agreement No. 101040021; the Generalitat Valenciana postdoctoral grant APOSTD/2018/177 and GenT Program (project CIDEGENT/2018/021); MICINN Research Project PID2019-108995GB-C22; the European Research Council for advanced grant “JETSET: Launching, propagation and emission of relativistic jets from binary mergers and across mass scales” (grant No. 884631); the Institute for Advanced Study; the Istituto Nazionale di Fisica Nucleare (INFN) sezione di Napoli, iniziative specifiche TEONGRAV; the International Max Planck Research School for Astronomy and Astrophysics at the Universities of Bonn and Cologne; DFG research grant “Jet physics on horizon scales and beyond” (grant No. FR 4069/2-1); Joint Columbia/Flatiron Postdoctoral Fellowship, research at the Flatiron Institute is supported by the Simons Foundation; the Japan Ministry of Education, Culture, Sports, Science and Technology (MEXT; grant JPMXP1020200109); the Japanese Government (Monbukagakusho: MEXT) Scholarship; the Japan Society for the Promotion of Science (JSPS) Grant-in-Aid for JSPS Research Fellowship (JP17J08829); the Joint Institute for Computational Fundamental Science, Japan; the Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS, grants QYZDJ-SSW-SLH057, QYZDJSSW-SYS008, ZDBS-LY-SLH011); the Leverhulme Trust Early Career Research Fellowship; the Max-Planck-Gesellschaft (MPG); the Max Planck Partner Group of the MPG and the CAS; the MEXT/JSPS KAKENHI (grants 18KK0090, JP21H01137, JP18H03721, JP18K13594, 18K03709, JP19K14761, 18H01245, 25120007); the Malaysian Fundamental Research Grant Scheme (FRGS) FRGS/1/2019/STG02/UM/02/6; the MIT International Science and Technology Initiatives (MISTI) Funds; the Ministry of Science and Technology (MOST) of Taiwan (103-2119-M-001-010-MY2, 105-2112-M-001-025-MY3, 105-2119-M-001-042, 106-2112-M-001-011, 106-2119-M-001-013, 106-2119-M-001-027, 106-2923-M-001-005, 107-2119-M-001-017, 107-2119-M-001-020, 107-2119-M-001-041, 107-2119-M-110-005, 107-2923-M-001-009, 108-2112-M-001-048, 108-2112-M-001-051, 108-2923-M-001-002, 109-2112-M-001-025, 109-2124-M-001-005, 109-2923-M-001-001, 110-2112-M-003-007-MY2, 110-2112-M-001-033, 110-2124-M-001-007, and 110-2923-M-001-001); the Ministry of Education (MoE) of Taiwan Yushan Young Scholar Program; the Physics Division, National Center for Theoretical Sciences of Taiwan; the National Aeronautics and Space Administration (NASA, Fermi Guest Investigator grants 80NSSC20K1567 and 80NSSC22K1571, NASA Astrophysics Theory Program grant 80NSSC20K0527, NASA NuSTAR award 80NSSC20K0645); NASA Hubble Fellowship grants HST-HF2-51431.001-A, HST-HF2-51482.001-A awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS5-26555; the National Institute of Natural Sciences (NINS) of Japan; the National Key Research and Development Program of China (grant 2016YFA0400704, 2017YFA0402703, 2016YFA0400702); the National Science Foundation (NSF, grants AST-0096454, AST-0352953, AST-0521233, AST-0705062, AST-0905844, AST-0922984, AST-1126433, AST-1140030, DGE-1144085, AST-1207704, AST-1207730, AST-1207752, MRI-1228509, OPP-1248097, AST-1310896, AST-1440254, AST-1555365, AST-1614868, AST-1615796, AST-1715061, AST-1716327, AST-1716536, OISE-1743747, AST-1816420, AST-1935980, AST-2034306); NSF Astronomy and Astrophysics Postdoctoral Fellowship (AST-1903847); the Natural Science Foundation of China (grants 11650110427, 10625314, 11721303, 11725312, 11873028, 11933007, 11991052, 11991053, 12192220, 12192223); the Natural Sciences and Engineering Research Council of Canada (NSERC, including a Discovery grant and the NSERC Alexander Graham Bell Canada Graduate Scholarships-Doctoral Program); the National Youth Thousand Talents Program of China; the National Research Foundation of Korea (the Global PhD Fellowship grant: grants NRF-2015H1A2A1033752, the Korea Research Fellowship Program: NRF-2015H1D3A1066561, Brain Pool Program: 2019H1D3A1A01102564, Basic Research Support grant 2019R1F1A1059721, 2021R1A6A3A01086420, 2022R1C1C1005255); Netherlands Research School for Astronomy (NOVA) Virtual Institute of Accretion (VIA) postdoctoral fellowships; Onsala Space Observatory (OSO) national infrastructure, for the provisioning of its facilities/observational support (OSO receives funding through the Swedish Research Council under grant 2017-00648); the Perimeter Institute for Theoretical Physics (research at Perimeter Institute is supported by the Government of Canada through the Department of Innovation, Science and Economic Development and by the Province of Ontario through the Ministry of Research, Innovation and Science); the Princeton Gravity Initiative; the Spanish Ministerio de Ciencia e Innovación (grants PGC2018-098915-B-C21, AYA2016-80889-P, PID2019-108995GB-C21, PID2020-117404GB-C21); the University of Pretoria for financial aid in the provision of the new Cluster Server nodes and SuperMicro (USA) for a SEEDING grant approved toward these nodes in 2020; the Shanghai Pilot Program for Basic Research, Chinese Academy of Science, Shanghai Branch (JCYJ-SHFY-2021-013); the State Agency for Research of the Spanish MCIU through the “Center of Excellence Severo Ochoa” award for the Instituto de Astrofísica de Andalucía (SEV-2017-0709); the Spinoza Prize SPI 78-409; the South African Research Chairs Initiative, through the South African Radio Astronomy Observatory (SARAO, grant ID 77948), which is a facility of the National Research Foundation (NRF), an agency of the Department of Science and Innovation (DSI) of South Africa; the Toray Science Foundation; the Swedish Research Council (VR); the US Department of Energy (USDOE) through the Los Alamos National Laboratory (operated by Triad National Security, LLC, for the National Nuclear Security Administration of the USDOE (Contract 89233218CNA000001); and the YCAA Prize Postdoctoral Fellowship. Funding Information: We thank the staff at the participating observatories, correlation centers, and institutions for their enthusiastic support. This paper makes use of the following ALMA data: ADS/JAO.ALMA#2016.1.01154.V. ALMA is a partnership of the European Southern Observatory (ESO; Europe, representing its member states), NSF, and National Institutes of Natural Sciences of Japan, together with National Research Council (Canada), Ministry of Science and Technology (MOST; Taiwan), Academia Sinica Institute of Astronomy and Astrophysics (ASIAA; Taiwan), and Korea Astronomy and Space Science Institute (KASI; Republic of Korea), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, Associated Universities, Inc. (AUI)/NRAO, and the National Astronomical Observatory of Japan (NAOJ). The NRAO is a facility of the NSF operated under cooperative agreement by AUI. This research used resources of the Oak Ridge Leadership Computing Facility at the Oak Ridge National Laboratory, which is supported by the Office of Science of the U.S. Department of Energy under contract No. DE-AC05-00OR22725. We also thank the Center for Computational Astrophysics, National Astronomical Observatory of Japan. The computing cluster of Shanghai VLBI correlator supported by the Special Fund for Astronomy from the Ministry of Finance in China is acknowledged. This work was supported by FAPESP (Fundacao de Amparo a Pesquisa do Estado de Sao Paulo) under grant 2021/01183-8. Funding Information: APEX is a collaboration between the Max-Planck-Institut für Radioastronomie (Germany), ESO, and the Onsala Space Observatory (Sweden). The SMA is a joint project between the SAO and ASIAA and is funded by the Smithsonian Institution and the Academia Sinica. The JCMT is operated by the EastAsian Observatory on behalf of the NAOJ, ASIAA, and KASI, as well as the Ministry of Finance of China, Chinese Academy of Sciences, and the National Key Research and Development Program (No. 2017YFA0402700) of China and Natural Science Foundation of China grant 11873028. Additional funding support for the JCMT is provided by the Science and Technologies Facility Council (UK) and participating universities in the UK and Canada. The LMT is a project operated by the Instituto Nacional de Astrófisica, Óptica, y Electrónica (Mexico) and the University of Massachusetts at Amherst (USA). The IRAM 30 m telescope on Pico Veleta, Spain is operated by IRAM and supported by CNRS (Centre National de la Recherche Scientifique, France), MPG (Max-Planck-Gesellschaft, Germany) and IGN (Instituto Geográfico Nacional, Spain). The SMT is operated by the Arizona Radio Observatory, a part of the Steward Observatory of the University of Arizona, with financial support of operations from the State of Arizona and financial support for instrumentation development from the NSF. Support for SPT participation in the EHT is provided by the National Science Foundation through award OPP-1852617 to the University of Chicago. Partial support is also provided by the Kavli Institute of Cosmological Physics at the University of Chicago. The SPT hydrogen maser was provided on loan from the GLT, courtesy of ASIAA. Funding Information: This work used the Extreme Science and Engineering Discovery Environment (XSEDE), supported by NSF grant ACI-1548562, and CyVerse, supported by NSF grants DBI-0735191, DBI-1265383, and DBI-1743442. XSEDE Stampede2 resource at TACC was allocated through TG-AST170024 and TG-AST080026N. XSEDE JetStream resource at PTI and TACC was allocated through AST170028. This research is part of the Frontera computing project at the Texas Advanced Computing Center through the Frontera Large-Scale Community Partnerships allocation AST20023. Frontera is made possible by National Science Foundation award OAC-1818253. This research was carried out using resources provided by the Open Science Grid, which is supported by the National Science Foundation and the U.S. Department of Energy Office of Science. Additional work used ABACUS2.0, which is part of the eScience center at Southern Denmark University. Simulations were also performed on the SuperMUC cluster at the LRZ in Garching, on the LOEWE cluster in CSC in Frankfurt, on the HazelHen cluster at the HLRS in Stuttgart, and on the Pi2.0 and Siyuan Mark-I at Shanghai Jiao Tong University. The computer resources of the Finnish IT Center for Science (CSC) and the Finnish Computing Competence Infrastructure (FCCI) project are acknowledged. This research was enabled in part by support provided by Compute Ontario ( http://computeontario.ca ), Calcul Quebec ( http://www.calculquebec.ca ), and Compute Canada ( http://www.computecanada.ca ). Funding Information: The EHTC has received generous donations of FPGA chips from Xilinx Inc., under the Xilinx University Program. The EHTC has benefited from technology shared under open-source license by the Collaboration for Astronomy Signal Processing and Electronics Research (CASPER). The EHT project is grateful to T4Science and Microsemi for their assistance with Hydrogen Masers. This research has made use of NASA’s Astrophysics Data System. We gratefully acknowledge the support provided by the extended staff of the ALMA, both from the inception of the ALMA Phasing Project through the observational campaigns of 2017 and 2018. We would like to thank A. Deller and W. Brisken for EHT-specific support with the use of DiFX. We thank Martin Shepherd for the addition of extra features in the Difmap software that were used for the CLEAN imaging results presented in this paper. We acknowledge the significance and cultural reverance that Maunakea, where the SMA and JCMT EHT stations are located, has always held within the indigenous Hawaiian people. Publisher Copyright: © 2023. The Author(s). Published by the American Astronomical Society. We report on the observations of the quasar NRAO 530 with the Event Horizon Telescope (EHT) on 2017 April 5−7, when NRAO 530 was used as a calibrator for the EHT observations of Sagittarius A*. At z = 0.902, this is the most distant object imaged by the EHT so far. We reconstruct the first images of the source at 230 GHz, at an unprecedented angular resolution of ∼20 μas, both in total intensity and in linear polarization (LP). We do not detect source variability, allowing us to represent the whole data set with static images. The images reveal a bright feature located on the southern end of the jet, which we associate with the core. The feature is linearly polarized, with a fractional polarization of ∼5%-8%, and it has a substructure consisting of two components. Their observed brightness temperature suggests that the energy density of the jet is dominated by the magnetic field. The jet extends over 60 μas along a position angle ∼ −28°. It includes two features with orthogonal directions of polarization (electric vector position angle), parallel and perpendicular to the jet axis, consistent with a helical structure of the magnetic field in the jet. The outermost feature has a particularly high degree of LP, suggestive of a nearly uniform magnetic field. Future EHT observations will probe the variability of the jet structure on microarcsecond scales, while simultaneous multiwavelength monitoring will provide insight into the high-energy emission origin.
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- 2023
22. Twofold Symmetry Observed in Bi$_{2}$Te$_{3}$/FeTe Interfacial Superconductor
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Han, Xinru, Qin, Hailang, Pan, Tianluo, Guo, Bin, Shi, Kaige, Huang, Zijin, Jiang, Jie, Yin, Hangyu, He, Hongtao, Ye, Fei, Chen, Wei-Qiang, Mei, Jia-Wei, and Wang, Gan
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Superconductivity (cond-mat.supr-con) ,Condensed Matter - Strongly Correlated Electrons ,Strongly Correlated Electrons (cond-mat.str-el) ,Condensed Matter - Superconductivity ,FOS: Physical sciences - Abstract
Superconducting pairing symmetry are crucial in understanding the microscopic superconducting mechanism of a superconductor. Here we report the observation of a twofold superconducting gap symmetry in an interfacial superconductor Bi$_{2}$Te$_{3}$/FeTe, by employing quasiparticle interference (QPI) technique in scanning tunneling microscopy and macroscopic magnetoresistance measurements. The QPI patterns corresponding to energies inside and outside the gap reveal a clear anisotropic superconducting gap. Furthermore, both the in-plane angle-dependent magnetoresistance and in-plane upper critical field exhibit a clear twofold symmetry. This twofold symmetry align with the Te-Te direction in FeTe, which weakens the possible generation by bi-collinear antiferromagnetism order. Our finding provides key information in further understanding of the topological properties in Bi$_{2}$Te$_{3}$/FeTe superconducting system and propels further theoretical interests in the paring mechanism in the system.
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- 2023
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23. In-situ reconstructed Ru atom array on α-MnO2 with enhanced performance for acidic water oxidation
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Chao Lin, Ji-Li Li, Xiaopeng Li, Shuai Yang, Wei Luo, Yaojia Zhang, Sung-Hae Kim, Dong-Hyung Kim, Sambhaji S. Shinde, Ye-Fei Li, Zhi-Pan Liu, Zheng Jiang, and Jung-Ho Lee
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Process Chemistry and Technology ,Bioengineering ,Biochemistry ,Catalysis - Published
- 2021
24. Severe absence of intra-orbital fat in a patient with orbital venous malformation: A case report
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Yang, Lu-Di, Xu, Shi-Qiong, Wang, Ye-Fei, and Jia, Ren-Bing
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Venous malformation ,genetic structures ,Entropion ,Long medical history ,Case report ,sense organs ,General Medicine ,Absence of intra-orbital fat ,Enophthalmos ,eye diseases - Abstract
BACKGROUND The orbital venous malformation is quite common in orbital diseases. Clinically, it is usually characterized by proptosis. However, among patients with distensible venous malformations, if the lesions continuously progress, they may induce enlargement of the orbital bone or orbital lipoatrophy, which in turn leads to enophthalmos. CASE SUMMARY Here, we report a patient who presented with enophthalmos and had a severe absence of intra-orbital fat secondary to orbital venous malformation. The patient was a 66-year-old female with a 20-year history of enophthalmos. Hertel exophthalmometry readings in a relaxed upright position were 4 mm OD and 13 mm OS with a 97 mm base. It was determined that she had positional “proptosis”. Physical examination also revealed a bulging mass on her hard palate. Computed tomographic scan and magnetic resonance imaging showed an expansion of the right orbit with local bony defects and multiple soft-tissue masses. CONCLUSION Long-term lack of awareness about the presence of orbital venous malformations, persistent venous congestion could lead to compression of the orbital fat, which in turn induces atrophy or the absence of intra-orbital fat.
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- 2021
25. Theoretical analysis on pulsar timing of a millisecond pulsar around a binary black hole
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Xiao-Jun Wu, Ye-Fei Yuan, Rajiv Kumar, and Yan Luo
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Space and Planetary Science ,Astrophysics::High Energy Astrophysical Phenomena ,Astronomy and Astrophysics - Abstract
The merging binary black holes (BBHs) have been detected by the ground gravitational-wave observatories, but it is very difficult to detect BBHs before their mergers. Since millisecond pulsars (MSPs) are remarkable precise ‘clocks’ in Universe, they could be used to detect the hidden BBHs, if they exist in systems of BBHs. Doing so, we construct a triple system which consists of a BBH and a third outer MSP. The theoretical studies have shown that the inner binary could cause additional time residuals (i.e. R$\ddot{o}$mer delay) on the orbit of the outer MSP, which can be used to detect inner BBHs. Using N-body simulations, in this paper, we calculate such time residuals, and analyse the periodic signals of them by Fast Fourier Transform, which allow us to explore the effects of the parameters of the inner BBHs. Specifically, we assume that the triple system is coplanar and stable; the distance from the earth is ∼1 kpc; the mass of each black hole is $10\, {\rm M}_\odot$. We find that the amplitude of the time residual increases with the semimajor axis and eccentricity of the inner BBH. Moreover, we find that there are several prominent and characteristic periodic signals for different parameters of the inner BBHs. With the help of the analytic results, we find these frequencies are due to different orders of the eccentricities of both the inner and outer binaries. Thus, in principle, we can use these frequencies to determine the parameters of the inner BBHs.
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- 2021
26. Structure and Catalysis of NiOOH: Recent Advances on Atomic Simulation
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Ye-Fei Li, Ji-Li Li, and Zhi-Pan Liu
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General Energy ,Physical and Theoretical Chemistry ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials - Published
- 2021
27. On Pre-trained language models for antibody
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Danqing Wang and Ye, Fei
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B-cell antibodies are vital proteins offering robust protection for the human body from pathogens. The development of general protein and antibody-specific pre-trained language models facilitates antibody prediction tasks. However, few studies comprehensively explore the representation capability of distinct pre-trained language models on different antibody problems. Previously, no benchmark available largely hindered the survey to answer these questions. We provide an AnTibody Understanding Evaluation (ATUE) benchmark to facilitate the investigation. We comprehensively evaluate the performance of protein pre-trained language models by empirical study along with conclusions and new insights. The related manuscript can be found in biorxiv with title "On Pre-trained language models for antibody".
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- 2022
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28. Deciphering and Suppressing Over‐Oxidized Nitrogen in Nickel‐Catalyzed Urea Electrolysis
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Zhi-Pan Liu, Xuejing Yang, Hualin Wang, Tao Liu, Lin Chen, Ye-Fei Li, Jianan Li, Chen Xiurong, Ming Gong, and Jili Li
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inorganic chemicals ,Reaction mechanism ,Electrolysis ,chemistry.chemical_element ,General Medicine ,General Chemistry ,Electrochemistry ,Cleavage (embryo) ,Nitrogen ,Combinatorial chemistry ,Catalysis ,law.invention ,chemistry.chemical_compound ,Nickel ,chemistry ,law ,Urea - Abstract
Urea electrolysis is a prospective technology for simultaneous H2 production and nitrogen suppression in the process of water being used for energy production. Its sustainability is currently founded on innocuous N2 products; however, we discovered that prevalent nickel-based catalysts could generally over-oxidize urea into NO2- products with ≈80 % Faradaic efficiencies, posing potential secondary hazards to the environment. Trace amounts of over-oxidized NO3- and N2 O were also detected. Using 15 N isotopes and urea analogues, we derived a nitrogen-fate network involving a NO2- -formation pathway via OH- -assisted C-N cleavage and two N2 -formation pathways via intra- and intermolecular coupling. DFT calculations confirmed that C-N cleavage is energetically more favorable. Inspired by the mechanism, a polyaniline-coating strategy was developed to locally enrich urea for increasing N2 production by a factor of two. These findings provide complementary insights into the nitrogen fate in water-energy nexus systems.
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- 2021
29. Sub-10 nm Corrugated TiO
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Pengfei, Zhang, Zhangliu, Tian, Yikun, Kang, Bowen, He, Zaiwang, Zhao, Chin-Te, Hung, Linlin, Duan, Wei, Chen, Yun, Tang, Jiaguo, Yu, Liqiang, Mai, Ye-Fei, Li, Wei, Li, and Dongyuan, Zhao
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Precise synthesis of well-ordered ultrathin nanowire arrays with tunable active surface, though attractive in optoelectronics, remains challenging to date. Herein, well-aligned sub-10 nm TiO
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- 2022
30. Learning an Evolved Mixture Model for Task-Free Continual Learning
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Ye, Fei and Bors, Adrian G.
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FOS: Computer and information sciences ,Computer Science - Machine Learning ,Artificial Intelligence (cs.AI) ,Computer Science - Artificial Intelligence ,Machine Learning (cs.LG) - Abstract
Recently, continual learning (CL) has gained significant interest because it enables deep learning models to acquire new knowledge without forgetting previously learnt information. However, most existing works require knowing the task identities and boundaries, which is not realistic in a real context. In this paper, we address a more challenging and realistic setting in CL, namely the Task-Free Continual Learning (TFCL) in which a model is trained on non-stationary data streams with no explicit task information. To address TFCL, we introduce an evolved mixture model whose network architecture is dynamically expanded to adapt to the data distribution shift. We implement this expansion mechanism by evaluating the probability distance between the knowledge stored in each mixture model component and the current memory buffer using the Hilbert Schmidt Independence Criterion (HSIC). We further introduce two simple dropout mechanisms to selectively remove stored examples in order to avoid memory overload while preserving memory diversity. Empirical results demonstrate that the proposed approach achieves excellent performance., Accepted by the 29th IEEE International Conference on Image Processing (ICIP 2022)
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- 2022
31. Case report: Large follicular thyroid carcinoma with multiple cervical lymph node metastases
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Ye, Fei, Liao, Liyan, Tan, Wanlin, Gong, Yi, Li, Xiaodu, and Niu, Chengcheng
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Surgery - Abstract
IntroductionFollicular thyroid carcinoma (FTC) rarely metastasizes to regional lymph nodes, as they mainly metastasize through hematogenous route; in particular, a large FTC with only lateral lymph node metastasis and without distant metastasis has rarely been reported.Case reportWe present a 66-year-old male patient with a progressively growing thyroid for more than 20 years, causing tracheal compression and narrowing. Neck ultrasonography, computed tomography (CT), magnetic resonance (MR) imaging and positron emission tomography–computed tomography (PET/CT) were carried out to obtain images of the thyroid and surrounding tissues. Total thyroidectomy and cervical lateral and central lymph node dissection were undertaken, and histopathological, and immunohistochemical evaluations and molecular pathology confirmed the diagnosis of FTC with multiple cervical lymph node metastases.ConclusionWe have reported a rare case of large FTC with diffuse nodal involvement but no distant metastases. We present the thyroid ultrasound, neck CT, MR and whole body PET/CT.
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- 2022
32. Thermodynamics and Catalytic Activity of Ruthenium Oxides Grown on Ruthenium Metal from a Machine Learning Atomic Simulation
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Cheng Shang, Ze-Yi Zhu, Ye-Fei Li, and Zhi-Pan Liu
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Materials science ,chemistry.chemical_element ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Catalysis ,Ruthenium ,Metal ,Atomic simulation ,General Energy ,Chemical engineering ,chemistry ,visual_art ,visual_art.visual_art_medium ,Physical and Theoretical Chemistry - Published
- 2021
33. In–N–In Sites Boosting Interfacial Charge Transfer in Carbon-Coated Hollow Tubular In2O3/ZnIn2S4 Heterostructure Derived from In-MOF for Enhanced Photocatalytic Hydrogen Evolution
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Lingfeng Li, Wei-Lin Dai, Xiaohao Wang, Juhua Zhang, Ye-Fei Li, and Quan Zhang
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animal structures ,Materials science ,urogenital system ,010405 organic chemistry ,digestive, oral, and skin physiology ,technology, industry, and agriculture ,Charge (physics) ,Heterojunction ,General Chemistry ,equipment and supplies ,010402 general chemistry ,01 natural sciences ,Catalysis ,0104 chemical sciences ,Chemical engineering ,Photocatalysis ,Hydrogen evolution ,Carbon coating - Abstract
A hierarchical hollow tubular In2O3/ZnIn2S4 heterostructure was rationally designed by growing thin-layered ZnIn2S4 on the surface of carbon-coated hollow tubular In2O3 (C/HT-In2O3) that was derive...
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- 2021
34. [An EHG-based Preterm Delivery Prediction Algorithm
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Shen-Guan, Wu, Yan-Jun, Deng, Ye-Fei, Zhang, Li-Huan, Shao, and Zhi-Dong, Zhao
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Uterine Contraction ,Electromyography ,Pregnancy ,Infant, Newborn ,Humans ,Premature Birth ,Female ,Neural Networks, Computer ,Algorithms - Abstract
Premature delivery is one of the direct factors that affect the early development and safety of infants. Its direct clinical manifestation is the change of uterine contraction intensity and frequency. Uterine Electrohysterography(EHG) signal collected from the abdomen of pregnant women can accurately and effectively reflect the uterine contraction, which has higher clinical application value than invasive monitoring technology such as intrauterine pressure catheter. Therefore, the research of fetal preterm birth recognition algorithm based on EHG is particularly important for perinatal fetal monitoring. We proposed a convolution neural network(CNN) based on EHG fetal preterm birth recognition algorithm, and a deep CNN model was constructed by combining the Gramian angular difference field(GADF) with the transfer learning technology. The structure of the model was optimized using the clinical measured term-preterm EHG database. The classification accuracy of 94.38% and
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- 2022
35. Smallest Stable Si/SiO2 Interface that Suppresses Quantum Tunneling from Machine-Learning-Based Global Search
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Zhipan Liu and Ye-Fei Li
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General Physics and Astronomy - Published
- 2022
36. Ab Initio Molecular Dynamics in Heterogeneous Catalysis
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Ye‐Fei Li
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Physics ,Ab initio molecular dynamics ,Molecular dynamics ,Chemical physics ,Metadynamics ,Thermodynamic integration ,Umbrella sampling ,Heterogeneous catalysis - Published
- 2021
37. A dislocation-based yield strength model for nano-indentation size effect
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Ye Fei, Richard A. Barrett, Tao Ping, Jianming Gong, and Sean B. Leen
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010302 applied physics ,Materials science ,Mechanical Engineering ,0103 physical sciences ,General Materials Science ,02 engineering and technology ,Nanoindentation ,Composite material ,Dislocation ,021001 nanoscience & nanotechnology ,0210 nano-technology ,01 natural sciences ,Finite element method - Abstract
This paper presents a dislocation-based yield strength model for the nano-indentation size effect. The model is based on functional expressions involving the densities of statistically stored dislocations and geometrically necessary dislocations. A single-phase austenitic stainless steel (316L) and a ferrite-austenite dual-phase steel (2205) are used here as the case-study materials to validate the proposed model. Experimental testing and finite element modelling of nano-indentation of the two materials are presented. Experimental tests are performed in the indentation load range from 1000[Formula: see text] to 10000[Formula: see text]. For 2205 steel, finite element modelling is performed using a dual-phase microstructure-based model. It is shown that, with consideration of statistically stored dislocations and geometrically necessary dislocations, finite element modelling results can reproduce measured load–displacement curves and hence, the size effect, within an error range of about 5%.
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- 2021
38. Comprehensive effect of grain size and original target morphology on sputtering behavior of magnetron sputtering target
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Chen-Xi Yi, Hao-Tian Zhang, Shuai-Kang Wang, Gui-Sheng Han, Zhi-Ling Liu, Ye-Fei Tian, and Ming-Dong Bao
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Condensed Matter Physics ,Instrumentation ,Surfaces, Coatings and Films - Published
- 2023
39. Room-temperature synthesis of nitrogen-rich conjugated microporous polymers for solid-phase extraction of trace synthetic musks
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Ye-Fei, Fan, Hai-Long, Jiang, Xiang-Feng, Chen, Na, Li, Xiao-Li, Wang, Jin-Ming, Lin, and Ru-Song, Zhao
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Polymers ,Nitrogen ,Solid Phase Extraction ,Temperature ,General Medicine ,Gas Chromatography-Mass Spectrometry ,Food Science ,Analytical Chemistry - Abstract
This study synthesized a conjugated microporous polymer (CMP) at room temperature, which has high surface area, large conjugate system, and nitrogen-rich features. The material was explored as a solid-phase extraction (SPE) column, and it showed a higher extraction efficiency for nitro-musks compared to most commercial columns. Under optimal SPE conditions, a sensitive and efficient method for determining five nitro-musks was established based on gas chromatography-mass spectrometry (GC-MS). The method showed excellent linearity (R
- Published
- 2023
40. Retraction Notice to: Selective Targeting of Checkpoint Kinase 1 in Tumor Cells with a Novel Potent Oncolytic Adenovirus
- Author
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Gao, Qinglei, Zhou, Jianfeng, Huang, Xiaoyuan, Chen, Gang, Ye, Fei, Lu, Yunping, Li, Kanyan, Zhuang, Liang, Huang, Mei, Xu, Gang, Wang, Shxuan, and Ma, Ding
- Subjects
Carcinoma, Hepatocellular ,Cell Survival ,Genetic Vectors ,Mice, Nude ,Antineoplastic Agents ,Virus Replication ,DNA, Antisense ,Adenoviridae ,Cell Line ,Mice ,Cytopathogenic Effect, Viral ,Cell Line, Tumor ,Drug Discovery ,Genetics ,Animals ,Humans ,Promoter Regions, Genetic ,Molecular Biology ,Pharmacology ,Mice, Inbred BALB C ,Models, Genetic ,Liver Neoplasms ,Xenograft Model Antitumor Assays ,Retraction ,Checkpoint Kinase 1 ,Gene Targeting ,Molecular Medicine ,Female ,Adenovirus E1A Proteins ,Cisplatin ,Protein Kinases ,HeLa Cells - Abstract
DNA-damage checkpoints are activated to arrest cells and promote survival upon genotoxic challenge. Efforts have been taken to target checkpoint kinase 1 (chk1; approved gene symbol CHEK1), a crucial checkpoint modulator, for therapeutic intervention. However, improvement of the potency and specificity of such therapeutics remains a major challenge. This prompted us to develop a novel chk1-targeting strategy by constructing a potent oncolytic adenovirus (M2). M2 was generated by combining two artificial features into a wild-type adenovirus type 5 genome. First, M2 was engineered with a 27-bp deletion in the E1A region to confer tumor-selective replication. Second, an antisense chk1 cDNA was substituted for viral E3 6.7K and gp19K genes. In this design, M2 exploited the adenovirus E3 promoters to express antisense chk1 cDNA in a viral replication-dependent fashion and preferentially silenced the chk1 gene in tumor cells. By virtue of combining oncolysis with chk1 targeting, M2 exhibited potent antitumoral efficacy in vitro and in vivo. Systemic administration of M2, plus a low dose of cisplatin, cured 80% of orthotopic hepatic carcinoma mouse models that were otherwise resistant to cisplatin. These findings have directed us toward the development of novel oncolytic adenoviruses that will be potentially applicable to a wide range of molecular-based therapeutics.
- Published
- 2023
41. Reconstructing 6-hourly PM2.5 datasets from 1960 to 2020 in China
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Junting Zhong, Xiaoye Zhang, Ke Gui, Jie Liao, Ye Fei, Lipeng Jiang, Lifeng Guo, Liangke Liu, Huizheng Che, Yaqiang Wang, Deying Wang, and Zijiang Zhou
- Abstract
Fine particulate matter (PM2.5) has altered radiation balance on earth and raised environmental and health risks for decades, but only been monitored widely since 2013 in China. Historical long-term PM2.5 records with high temporal resolution are essential but lacking for both research and environmental management. Here, we reconstruct a site-based PM2.5 dataset at 6-hour intervals from 1960 to 2020 that combines long-term visibility, conventional meteorological observations, emissions, and elevation. The PM2.5 concentration at each site is estimated based on an advanced machine learning model, LightGBM, that takes advantage of spatial features from 20 surrounding meteorological stations. Our model's performance is comparable or even better than those of previous studies in by-year cross validation (CV) (R2=0.7) and spatial CV (R2=0.76), and more advantageous in long-term records and high temporal resolution. This model also reconstructs a 0.25°×0.25°, 6-hourly, gridded PM2.5 dataset by incorporating spatial features. The results show PM2.5 pollution worsens gradually or maintains before 2010 from an interdecadal scale but mitigates in the following decade. Although the turning points vary in different regions, PM2.5 mass concentrations in key regions decreased significantly after 2013 due to clean air actions. In particular, the annual average value of PM2.5 in 2020 is nearly at the lowest value in history since 1960. These two PM2.5 datasets (publicly available at https://doi.org/10.5281/zenodo.6372847) provide spatiotemporal variations at high resolution, which lay the foundation of research studies associated with air pollution, climate change, and atmospheric chemical reanalysis.
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- 2022
42. Blob formation and ejection from the radiative inefficient accretion flow around massive black hole
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Rajiv Kumar, Ye-Fei Yuan, and Tian-Le Zhao
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High Energy Astrophysical Phenomena (astro-ph.HE) ,Physics ,Magnetic energy ,010308 nuclear & particles physics ,Astrophysics::High Energy Astrophysical Phenomena ,FOS: Physical sciences ,Astronomy and Astrophysics ,Magnetic reconnection ,Astrophysics ,01 natural sciences ,Accretion (astrophysics) ,Black hole ,General Relativity and Quantum Cosmology ,Current sheet ,Space and Planetary Science ,Physics::Space Physics ,0103 physical sciences ,Radiative transfer ,Magnetohydrodynamics ,Astrophysics - High Energy Astrophysical Phenomena ,010303 astronomy & astrophysics ,Schwarzschild radius - Abstract
We study the small scale magnetic reconnection above the radiative inefficient accretion flow around massive black hole via 2D magnetohydrodynamics (MHD) numerical simulation, in order to model the blob formation and ejection from the accretion flow around Sgr A*. The connection of both the newly emerging magnetic field and the pre-existing magnetic field is investigated to check whether blobs could be driven in the environment of black hole accretion disc. After the magnetic connection, both the velocity and temperature of the plasma can be comparable to the inferred physical properties at the base of the observed blob ejection. For illustration, three small boxes which are located within 40 Schwarzschild radii from the central black hole are chosen as our simulation areas. At the beginning of the reconnections, the fluid is pulled toward the central black hole due to the gravitational attraction and the current sheet produced by the reconnection is also pulled toward the same direction, consequently, the resulting outflows move both upwards and towards the symmetry axis of the central black hole. Eventually, huge blobs appear, which supports the catastrophe model of episodic jets \citep{2009MNRAS.395.2183Y}. It is also found that the closer to the black hole the magnetic connection happens, the higher the converting efficiency of the magnetic energy into the heat and kinetic energy. For these inner blobs, they have vortex structure due to the K-H instability, which happens along the current sheet separating the fluids with different speed., press in MNRAS
- Published
- 2020
43. Design, Synthesis, and Evaluation of a Series of Novel Super Long-Acting DPP-4 Inhibitors for the Treatment of Type 2 Diabetes
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Liao Yuting, Wang Jianmin, Chen Zhang, Yong Liang, Ni Jia, Yan Pangke, Huang Longbin, Tang Pingming, Ye Fei, Lei Ming, Huang Anbang, He Ping, and Lin Hongjun
- Subjects
Male ,Dipeptidyl Peptidase 4 ,Chemistry Techniques, Synthetic ,Type 2 diabetes ,Pharmacology ,Omarigliptin ,Heterocyclic Compounds, 2-Ring ,01 natural sciences ,Mice ,03 medical and health sciences ,chemistry.chemical_compound ,Pharmacokinetics ,In vivo ,Drug Discovery ,medicine ,Animals ,Tissue Distribution ,Pyrans ,030304 developmental biology ,Dipeptidyl-Peptidase IV Inhibitors ,0303 health sciences ,Trifluoromethyl ,DPP-4 Inhibitors ,Tetrahydropyran ,medicine.disease ,Macaca mulatta ,0104 chemical sciences ,010404 medicinal & biomolecular chemistry ,Long acting ,Diabetes Mellitus, Type 2 ,chemistry ,Drug Design ,Molecular Medicine - Abstract
In the present work, a novel series of trifluoromethyl-substituted tetrahydropyran derivatives were rationally designed and synthesized as potent DPP-4 inhibitors with significantly improved duration time of action over current commercially available DPP-4 inhibitors. The incorporation of the trifluoromethyl group on the 6-position of the tetrahydropyran ring of omarigliptin with the configuration of (2R,3S,5R,6S) not only significantly improves the overall pharmacokinetic profiles in mice but also maintains comparable DPP-4 inhibition activities. Further preclinical development of compound 2 exhibited its extraordinary efficacy in vivo and good safety profile. Clinical studies of compound 2 (Haisco HSK7653) are now ongoing in China, which revealed that inhibitor 2 could serve as an efficient candidate with a once-biweekly therapeutic regimen.
- Published
- 2020
44. Experimental study on thermal performance of a pumped two‐phase battery thermal management system
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Yue Zhu, Fang Yidong, Ye Fei, and Lin Su
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Fuel Technology ,Materials science ,Nuclear Energy and Engineering ,Renewable Energy, Sustainability and the Environment ,Latent heat ,Phase (matter) ,Nuclear engineering ,Thermal ,Battery thermal management ,Energy Engineering and Power Technology - Published
- 2020
45. piRNA-independent function of PIWIL1 as a co-activator for anaphase promoting complex/cyclosome to drive pancreatic cancer metastasis
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Chun-Hui Jin, Tingbo Liang, Peng Yuan, Dangsheng Li, Jinsong Li, Mo-Fang Liu, Ye-Fei Rong, Feng Li, Yunping Hu, Shuang Zhao, Ming Rao, Wenhui Lou, Qi Yin, Yingbin Liu, Fengjuan Zhang, Tao Wei, Ligang Wu, and Wei Tang
- Subjects
endocrine system ,0303 health sciences ,urogenital system ,Cell growth ,Piwi-interacting RNA ,Cell Biology ,Biology ,medicine.disease ,medicine.disease_cause ,Metastasis ,Cell biology ,03 medical and health sciences ,0302 clinical medicine ,030220 oncology & carcinogenesis ,Pancreatic cancer ,Cancer cell ,medicine ,Anaphase-promoting complex ,Carcinogenesis ,030304 developmental biology ,Anaphase - Abstract
Piwi proteins are normally restricted in germ cells to suppress transposons through associations with Piwi-interacting RNAs (piRNAs), but they are also frequently activated in many types of human cancers. A great puzzle is the lack of significant induction of corresponding piRNAs in cancer cells, as we document here in human pancreatic ductal adenocarcinomas (PDACs), which implies that such germline-specific proteins are somehow hijacked to promote tumorigenesis through a different mode of action. Here, we show that in the absence of piRNAs, human PIWIL1 in PDAC functions as an oncoprotein by activating the anaphase promoting complex/cyclosome (APC/C) E3 complex, which then targets a critical cell adhesion-related protein, Pinin, to enhance PDAC metastasis. This is in contrast to piRNA-dependent PIWIL1 ubiquitination and removal by APC/C during late spermiogenesis. These findings unveil a piRNA-dependent mechanism to switch PIWIL1 from a substrate in spermatids to a co-activator of APC/C in human cancer cells.
- Published
- 2020
46. Can we detect PeV neutrinos from merging black hole binaries?
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Xin-Yue Shi and Ye-Fei Yuan
- Subjects
Physics ,Proton ,010308 nuclear & particles physics ,Gravitational wave ,Astrophysics::High Energy Astrophysical Phenomena ,Flux ,Astronomy and Astrophysics ,Astrophysics ,Plasma ,01 natural sciences ,LIGO ,Magnetic field ,Black hole ,Space and Planetary Science ,0103 physical sciences ,Neutrino ,010303 astronomy & astrophysics - Abstract
In the environment of a newly formed black hole, even small amounts of plasma can support a strong magnetic field up to 1011 G in a short time, and protons could be accelerated to ∼ 10 17 eV which is limited by the curvature radiation. In the most optimistic estimation which consider no curvature cooling during the acceleration of protons, the maximum proton energy might be up to ∼ 10 20 eV. After acceleration, in such extreme environment, the dominated energy loss process of proton is through their interaction with the strong magnetic fields, that is, the so-called pB process ( Yuan and Shi, 2019 ). The maximum energy of neutrino produced due to the pB process can reach to ∼ 10 19 eV. In the case of GW150914 detected by Advanced LIGO, the neutrino flux is estimated to be below the detection limit of IceCube. Neutrinos associating with the merging of nearby black hole binary with distance ≲ 5 Mpc could be detected by the current IceCube detector, and the diffuse neutrino background resulting from black hole mergers could be detected by the future IceCube-Gen2.
- Published
- 2020
47. Oxygen Evolution Activity on NiOOH Catalysts: Four-Coordinated Ni Cation as the Active Site and the Hydroperoxide Mechanism
- Author
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Li-Fen Li, Ye-Fei Li, and Zhi-Pan Liu
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biology ,010405 organic chemistry ,Chemistry ,Oxygen evolution ,Active site ,General Chemistry ,Electrolyte ,010402 general chemistry ,Photochemistry ,01 natural sciences ,Catalysis ,0104 chemical sciences ,biology.protein ,Mechanism (sociology) - Abstract
The NiOOH catalyst as obtained dynamically from electrodeposition of Ni2+(aq) in the borate-containing electrolyte was observed to exhibit much higher oxygen evolution activity at a near-neutral pH...
- Published
- 2020
48. The Attenuation and Propagation Law of Ultrasonic Wave in UHV Gas Insulated Line
- Author
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Minfeng Shao, Mengqi Li, Ye Fei, Yi Liu, Liu Yunpeng, Jiangbo Chen, and Lin Cheng
- Subjects
Physics ,Propagation time ,General Computer Science ,GIL ,lead breaking signal ,Attenuation ,General Engineering ,Fault (power engineering) ,Signal ,Transmission line ,Attenuation coefficient ,Law ,breakdown discharge ,General Materials Science ,Ultrasonic sensor ,fault location ,lcsh:Electrical engineering. Electronics. Nuclear engineering ,lcsh:TK1-9971 ,ultrasonic wave ,UHV ,Voltage - Abstract
Gas insulated transmission line (GIL) is widely used for power transmission in special geographical environment such as river crossing, mountain crossing and city tunnel crossing scenarios. Because of its totally enclosed structure, it is difficult to locate the fault position when the internal breakdown discharge occurs. Fault location by using the ultrasonic wave aroused by discharge is an efficient method for GIL maintenance. This paper reports the experimental and theoretical results of attenuation and propagation law of ultrasonic signal in GIL. An ultra-high voltage (UHV) GIL model was set up to simulate the geometry and material conditions of real GIL. The common lead breaking signal was adopted to generate ultrasonic source, and the propagation velocity and attenuation coefficient of ultrasonic wave were obtained. The experimental results show that the attenuation coefficient of ultrasonic wave on GIL linear unit is about 0.234 dB/m, and its propagation velocity is about 3.3 km/s. But the attenuation level of ultrasonic wave is much higher when it passes through the epoxy insulators or expansion joints. The validity of the method is verified by the creeping discharge test on the GIL model. In order to analyze the propagation path of ultrasonic wave, the relationship between the path and time is calculated and the shortest propagation time is obtained. The results of this research provide support for the fault location of GIL by ultrasonic wave.
- Published
- 2020
49. A high-performance trace level acetone sensor using an indispensable V4C3Tx MXene
- Author
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Na Yun, Ye-Fei Li, Wei-Na Zhao, and Zhen-Hua Dai
- Subjects
Detection limit ,Materials science ,Aqueous solution ,General Chemical Engineering ,Nanotechnology ,General Chemistry ,chemistry.chemical_compound ,chemistry ,Etching ,Clinical diagnosis ,Acetone ,MXenes ,Selectivity ,Water vapor - Abstract
The development of a stringent sensor to detect low levels of acetone, yielding the potential for the point-of-care clinical diagnosis of diabetes, is still a great challenge but is urgently required. Most studies have focused on Ti3C2Tx, yet other types of MXenes with good performance are rare. Herein, an emerging kind of MXene, V4C3Tx, has been prepared from V4AlC3 via the selective etching of the Al layer using aqueous HF at room temperature (RT), and its performance as an acetone sensor is presented. A V4C3Tx based acetone sensor delivers good performance, as demonstrated by its low working temperature of 25 °C, low detection limit of 1 ppm (lower than the 1.8 ppm diabetes diagnosis threshold), and high selectivity towards acetone in a mixed gas of acetone and water vapor, hopefully showing promise for application in the much faster and earlier diagnosis of diabetes. V4C3Tx MXene is used for the first time in the field of acetone detection in this work, hopefully opening up a path for the investigation of applications of MXene in gas sensors, and such exciting findings distinguish V4C3Tx as a comparable material to the well-known Ti3C2Tx. In addition, we used DFT calculations to explore the mechanisms that result in the superior selectivity for acetone with respect to water vapor. Hopefully, the proposed mechanisms combining experimental results and theoretical study will shed light on the design and production of new high-performance acetone sensors.
- Published
- 2020
50. Supplemental Material - Menstrual and Reproductive Factors in Association With Breast Cancer Risk in Vietnamese Women: A Case-Control Study
- Author
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Bui, Oanh Thi, Tran, Huong Thanh, Nguyen, Sang Minh, Dao, Tu Van, Bui, Quang Vinh, Pham, Anh Tuan, Shrubsole, Martha J., Cai, Qiuyin, Ye, Fei, Zheng, Wei, Luu, Hung Nguyen, Tran, Thuan Van, and Shu, Xiao-Ou
- Subjects
FOS: Clinical medicine ,111299 Oncology and Carcinogenesis not elsewhere classified - Abstract
Supplemental Material for Menstrual and Reproductive Factors in Association With Breast Cancer Risk in Vietnamese Women: A Case-Control Study by Oanh Thi Bui, Huong Thanh Tran1,2, Sang Minh Nguyen, Tu Van Dao, Quang Vinh Bui, Anh Tuan Pham, Martha J. Shrubsole, Qiuyin Cai, Fei Ye, Wei Zheng, Hung Nguyen Luu, Thuan Van Tran, and Xiao-Ou Shu in Cancer Control
- Published
- 2022
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