305 results on '"Ping Ai"'
Search Results
2. ARPES detection of superconducting gap sign in unconventional superconductors
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Qiang Gao, Jin Mo Bok, Ping Ai, Jing Liu, Hongtao Yan, Xiangyu Luo, Yongqing Cai, Cong Li, Yang Wang, Chaohui Yin, Hao Chen, Genda Gu, Fengfeng Zhang, Feng Yang, Shenjin Zhang, Qinjun Peng, Zhihai Zhu, Guodong Liu, Zuyan Xu, Tao Xiang, Lin Zhao, Han-Yong Choi, and X. J. Zhou
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Science - Abstract
Abstract The superconducting gap symmetry is crucial in understanding the underlying superconductivity mechanism. Angle-resolved photoemission spectroscopy (ARPES) has played a key role in determining the gap symmetry in unconventional superconductors. However, it has been considered so far that ARPES can only measure the magnitude of the superconducting gap but not its phase; the phase has to be detected by other phase-sensitive techniques. Here we propose a method to directly detect the superconducting gap sign by ARPES. This method is successfully validated in a cuprate superconductor Bi2Sr2CaCu2O8+δ with a well-known d-wave gap symmetry. When two bands have a strong interband interaction, the resulted electronic structures in the superconducting state are sensitive to the relative gap sign between the two bands. Our present work provides an approach to detect the gap sign and can be applied to various superconductors, particularly those with multiple orbitals like the iron-based superconductors.
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- 2024
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3. Insights into uveitis from Brentuximab vedotin in refractory Hodgkin’s lymphoma: a case report and brief review
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Mengyuan Liu, Kexing Ren, Ping Ai, and Liqun Zou
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Brentuximab vedotin ,Hodgkin’s lymphoma ,uveitis ,MMAE ,antibody-drug conjugate ,case report ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
This case report describes a 16-year-old patient with refractory Hodgkin’s lymphoma who developed bilateral anterior and intermediate uveitis as an adverse reaction to Brentuximab vedotin (BV). This is a rare case of an ocular adverse reaction potentially related to BV, with symptoms like blurred vision, decreased visual acuity, photophobia, and redness. Potential mechanisms include BV targeting CD30+ T cells in the uveal tissue or an immune response triggered by the microtubule-disrupting agent MMAE within BV. This highlights the need for vigilant monitoring of ocular adverse events in BV-treated patients and further research into their mechanisms and management.
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- 2024
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4. Tumor treating fields for newly diagnosed high‐grade glioma based on the criteria of 2021 WHO CNS5: A retrospective analysis of Chinese patients in a single center
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Li Zhang, Yanming Ren, Youheng Peng, Yong Luo, Yanhui Liu, Xiang Wang, Yuan Yang, Lei Liu, Ping Ai, Xiaoyan Yang, Yanchu Li, Qing Mao, and Feng Wang
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astrocytoma ,glioblastoma ,high‐grade glioma ,tumor treating fields ,WHO CNS4 2016 ,WHO CNS5 2021 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background and Objective High‐grade glioma (HGG) is known to be characterized by a high degree of malignancy and a worse prognosis. The classical treatment is safe resection supplemented by radiotherapy and chemotherapy. Tumor treating fields (TTFields), an emerging physiotherapeutic modality that targets malignant solid tumors using medium‐frequency, low‐intensity, alternating electric fields to interfere with cell division, have been used for the treatment of new diagnosis of glioblastoma, however, their administration in HGG requires further clinical evidence. The efficacy and safety of TTFields in Chinese patients with HGG were retrospectively evaluated by us in a single center. Methods We enrolled and analyzed 52 patients with newly diagnosed HGG undergoing surgery and standard chemoradiotherapy regimens from December 2019 to June 2022, and followed them until June 2023. Based on whether they used TTFields, they were divided into a TTFields group and a non‐TTFields group. Progression‐free survival (PFS) and overall survival (OS) were compared between the two groups. Results There were 26 cases in the TTFields group and 26 cases in the non‐TTFields group. In the TTFields group, the median PFS was 14.2 months (95% CI: 9.50–18.90), the median OS was 19.7 months (95% CI: 14.95–24.25) , the median interval from surgery to the start of treatment with TTFields was 2.47 months (95% CI: 1.47–4.13), and the median duration of treatment with TTFields was 10.6 months (95% CI: 9.57–11.63). 15 (57.69%) patients experienced an adverse event and no serious adverse event was reported. In the non‐TTFields group, the median PFS was 9.57 months (95% CI: 6.23–12.91) and the median OS was 16.07 months (95% CI: 12.90–19.24). There was a statistically significant difference in PFS (p = 0.005) and OS (p = 0.007) between the two groups. Conclusions In this retrospective analysis, TTFields were observed to improve newly diagnosed HGG patients' median PFS and OS. Compliance was much higher than reported in clinical trials and safety remained good.
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- 2024
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5. LncRNA PVT1 induces apoptosis and inflammatory response of bronchial epithelial cells by regulating miR-30b-5p/BCL2L11 axis in COPD
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Taoli Fu, Hui Tian, Hui Rong, Ping Ai, and Xiaoping Li
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COPD ,Cigarette smoke ,Inflammation ,Apoptosis ,PVT1 ,Ecology ,QH540-549.5 ,Genetics ,QH426-470 - Abstract
Abstract Background Chronic obstructive pulmonary disease (COPD) is a serious health burden worldwide with high mortality. LncRNA plasmacytoma variant translocation 1 (PVT1) has been illustrated to serve as a biomarker for COPD progression. Nonetheless, its specific functions and mechanisms in COPD are unclarified. Methods Cigarette smoke extract (CSE) was utilized to stimulate 16HBE cells, and cigarette smoke combining with lipopolysaccharide (LPS) was employed to induce COPD in rats. Western blotting and RT-qPCR were utilized for measuring protein and RNA levels. Flow cytometry was implemented for detecting cell apoptosis. Concentrations of inflammatory factors TNF-α and IFN-γ were examined using ELISA. Luciferase reporter assay was utilized for verifying the interaction between molecules. Hematoxylin–eosin staining was performed for histological analysis of rat lung tissues. Results PVT1 was highly expressed in CSE-stimulated 16HBE cells and the lungs of COPD rats. PVT1 depletion restored the viability, restrained apoptosis and hindered inflammatory cytokine production in 16HBE cells under CSE treatment and alleviated pathological damages in COPD rats. PVT1 bound to miR-30b-5p and miR-30b-5p targeted BCL2 like 11 (BCL2L11). Overexpressing BCL2L11 offset the above effects mediated by PVT1 in CSE-triggered 16HBE cells. Conclusion PVT1 enhances apoptosis and inflammation of 16HBE cells under CSE stimulation by modulating miR-30b-5p/BCL2L11 axis.
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- 2023
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6. Consolidation-to-tumor ratio is not a prognostic factor for lung cancer manifesting as radiological part-solid nodules
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Shuangshuang He, Yongming Wu, and Ping Ai
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Consolidation-to-tumor ratio ,Non-small cell lung cancer ,Overall survival ,Part-solid nodules ,Surgery ,RD1-811 - Published
- 2024
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7. Effect of Data Characteristics Inconsistency on Medium and Long-Term Runoff Forecasting by Machine Learning
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Ping Ai, Chuansheng Xiong, Ke Li, Yanhong Song, Shicheng Gong, and Zhaoxin Yue
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Danjiangkou reservoir ,data characteristics consistency ,machine learning ,medium and long-term runoff forecasting ,mutation ,characteristics ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
In the application of medium and long-term runoff forecasting, machine learning has some problems, such as high learning cost, limited computing cost, and difficulty in satisfying statistical data assumptions in some regions, leading to difficulty in popularization in the hydrology industry. In the case of a few data, it is one of the ways to solve the problem to analyze the data characteristics consistency. This paper analyzes the statistical hypothesis of machine learning and runoff data characteristics such as periodicity and mutation. Aiming at the effect of data characteristics inconsistency on three representative machine learning models (multiple linear regression, random forest, back propagation neural network), a simple correction/improvement method suitable for engineering was proposed. The model results were verified in the Danjiangkou area, China. The results show that the errors of the three models have the same distribution as the periodic characteristics of the runoff periods, and the correction/improvement based on periodicity and mutation characteristics can improve the forecasting accuracy of the three models. The back propagation neural network model is most sensitive to the data characteristics consistency.
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- 2023
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8. Sexual behaviours and correlates of condom use among HIV-discordant couples from eastern China: a cross-sectional study
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Wei Zheng, Yi Li, Fenglin Zhang, Zhengdong Dou, Ping Ai, Ming Bao, Congming Han, Kexia Xiang, and Qirong Qin
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Medicine - Abstract
Objectives To investigate sexual behaviours among HIV-discordant heterosexual couples and assess the correlates of condom use at the couple level.Design Cross-sectional study.Setting Seven prefectures along the Yangtze River in the Anhui Province, China.Participants We included 412 participants aged 18 years or older (206 married HIV-discordant couples).Primary and secondary outcome measures In this study, sexual behaviours included marital or extramarital sex in the past 6 months, as well as the frequency of marital sex and condom use (always, sometimes or never) if having marital sex in the past 6 months. We used stepwise ordinal logistic regression modelling to determine the correlates of condom use.Results In total, 63.1% (130 of 206) of couples had marital sex in the past 6 months, of which 89.2% (116 of 130) used condoms consistently. Couples with more marital duration (OR=1.15; 95% CI: 1.03, 1.28) were more inclined to adhere to condom use, whereas those lacking support and care (OR=0.25; 95% CI: 0.07, 0.94) and being remarried (OR=0.08; 95% CI: 0.02, 0.43) were associated with less condom use. In addition, HIV-positive respondents were more likely to have extramarital sex than HIV-negative respondents (p=0.015).Conclusions The extramarital sex of HIV-positive spouses should be considered. Implementation of interventions, such as increasing support and care between spouses to promote marital intimacy and stability, could reduce unprotected sexual behaviour.
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- 2023
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9. Linearly dispersive bands at the onset of correlations in K_{x}C_{60} films
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Ping Ai, Luca Moreschini, Ryo Mori, Drew W. Latzke, Jonathan D. Denlinger, Alex Zettl, Claudia Ojeda-Aristizabal, and Alessandra Lanzara
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Physics ,QC1-999 - Abstract
Molecular crystals are a flexible platform to induce novel electronic phases. Due to the weak forces between molecules, intermolecular distances can be varied over larger ranges than interatomic distances in atomic crystals. On the other hand, the hopping terms are generally small, which results in narrow bands, strong correlations, and heavy electrons. Here, by growing K_{x}C_{60} fullerides on hexagonal layered Bi_{2}Se_{3}, we show that upon doping the series undergoes a Mott transition from a molecular insulator to a correlated metal and an in-gap state evolves into highly dispersive Dirac-like fermions at half filling, where superconductivity occurs. This picture challenges the commonly accepted description of the low-energy quasiparticles as appearing from a gradual electron doping of the conduction states and suggests an intriguing parallel with the more famous family of the cuprate superconductors. More in general, it indicates that molecular crystals offer a viable route to engineer electron-electron interactions.
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- 2023
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10. A novel medium- and long-term runoff combined forecasting model based on different lag periods
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Ping Ai, Yanhong Song, Chuansheng Xiong, Binbin Chen, and Zhaoxin Yue
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combined model ,delay correlation analysis ,extreme learning machine ,medium- and long-term runoff forecasting ,optimization algorithm ,Information technology ,T58.5-58.64 ,Environmental technology. Sanitary engineering ,TD1-1066 - Abstract
The accuracy of medium- and long-term runoff forecasting plays a significant role in several applications involving the management of hydrological resources, such as power generation, water supply and flood mitigation. Numerous studies that adopted combined forecasting models to enhance runoff forecasting accuracy have been proposed. Nevertheless, some models do not take into account the effects of different lag periods on the selection of input factors. Based on this, this paper proposed a novel medium- and long-term runoff combined forecasting model based on different lag periods. In this approach, the factors are initially selected by the time-delay correlation analysis method of different lag periods and further screened with stepwise regression analysis. Next, an extreme learning machine (ELM) is adopted to integrate each result obtained from the three single models, including multiple linear regression (MLR), feed-forward back propagation-neural network (FFBP-NN) and support vector regression (SVR), which is optimized by particle swarm optimization (PSO). To verify the effectiveness and versatility of the proposed combined model, the Lianghekou and Jinping hydrological stations from the Yalong River basin, China, are utilized as case studies. The experimental results indicate that compared with MLR, FFBP-NN, SVR and ridge regression (RR), the proposed combined model can better improve the accuracy of medium- and long-term runoff forecasting in the statistical indices of MAE, MAPE, RMSE, DC, U95 and reliability. HIGHLIGHTS The delay correlation analysis with different lag periods was used to select the key factors.; A novel medium- and long-term runoff combined forecasting model based on different lag periods was proposed, which performed better than other models.; The lag period of physical factors delay can affect the accuracy of runoff forecasting.;
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- 2022
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11. The human oral – nasopharynx microbiome as a risk screening tool for nasopharyngeal carcinoma
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Yu Hao, Zhi Zeng, Xian Peng, Ping Ai, Qi Han, Biao Ren, Mingyun Li, Haohao Wang, Xinxuan Zhou, Xuedong Zhou, Yue Ma, and Lei Cheng
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nasopharyngeal carcinoma ,screening ,microbiome ,16S rDNA sequencing ,random forest ,Microbiology ,QR1-502 - Abstract
Nasopharyngeal carcinoma (NPC) is a common head and neck cancer with a poor prognosis. There is an urgent need to develop a simple and convenient screening tool for early detection and risk screening of NPC. 139 microbial samples were collected from 40 healthy people and 39 patients with nasopharyngeal biopsy. A total of 40 and 39 oral, eight and 27 nasal cavity, nine and 16 nasopharyngeal microbial samples were collected from the two sets of individuals. A risk screening tool for NPC was established by 16S rDNA sequencing and random forest. Patients with nasopharyngeal biopsy had significantly lower nasal cavity and nasopharynx microbial diversities than healthy people. The beta diversity of the oral microbiome was significantly different between the two groups. The NPC screening tools based on nasopharyngeal and oral microbiomes have 88% and 77.2% accuracies, respectively. The nasopharyngeal biopsy patients had significantly higher Granulicatella abundance in their oral cavity and lower Pseudomonas and Acinetobacter in the nasopharynx than healthy people. This study established microbiome-based non-invasive, simple, no radiation, and low-cost NPC screening tools. Individuals at a high risk of NPC should be advised to seek further examination, which might improve the early detection of NPC and save public health costs.
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- 2022
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12. Dynamic risk assessment of drought disaster: a case study of Jiangxi Province, China
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Ping Ai, Binbin Chen, Dingbo Yuan, Min Hong, and Hongwei Liu
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capacity for drought mitigation ,drought disaster ,dynamic risk assessment ,exposure ,hazard ,vulnerability ,Environmental technology. Sanitary engineering ,TD1-1066 ,Environmental sciences ,GE1-350 - Abstract
The dynamic risk assessment of drought is crucial in the transition from the crisis management model to the risk management model, which can reveal the evolution mechanism of drought disasters. Due to a lack of data and research perspectives, most current studies are still based on static risk assessment. This study proposes a conceptual model for the dynamic risk assessment of droughts based on the probability of their occurrence and potential impacts. The developed dynamic risk index considers the hazard, exposure, vulnerability, and capacity for drought mitigation. The analytic hierarchy process (AHP) method was used to determine the weight coefficient of each indicator in the model. The novelty of the proposed model lies in the integration of four elements of drought disasters with spatiotemporal characteristics. Jiangxi Province, which is frequently affected by drought, was selected as the study area to validate the proposed model. Experimental results demonstrate that the proposed model rapidly reflects the degree of drought disaster risk caused by drought events and the influencing factors at monthly and annual scales. Moreover, the datasets based on the influencing factors of drought disasters in different regions have a good commonality in the proposed model. HIGHLIGHTS A dynamic risk assessment model with spatiotemporal characteristics was established.; Four factors based on temporal and spatial changes were incorporated in this model.; The innovative method was provided for the risk management of drought disaster.; Monthly and annual time scales were selected for the validation of the model.;
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- 2021
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13. Intracranial solitary fibrous tumor/hemangiopericytoma: Role and choice of postoperative radiotherapy techniques
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Qiheng Gou, Yuxin Xie, and Ping Ai
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intracranial solitary fibrous tumor/hemangiopericytoma (SFT/HPC) ,postoperative radiotherapy ,intensity-modulated radiotherapy (IMRT) ,stereotactic radiosurgery (SRS) ,time to progression ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
BackgroundIntracranial solitary fibrous tumor/hemangiopericytoma (SFT/HPC) is a novel rare disease after the 2016 WHO reclassification. Surgery is the main treatment. Postoperative adjuvant radiotherapy is often used, but the effects of different radiotherapy techniques are still unclear. The purpose of this study was to analyze the effects of postoperative radiotherapy (PORT) and different radiotherapy methods on the efficacy of patients with intracranial SFT/HPC.Materials and methodsWe retrospectively analyzed 42 patients with intracranial SFT/HPC who underwent surgical treatment from 2008 to 2022, 20 of whom were treated with postoperative intensity-modulated radiotherapy (IMRT) and 22 with postoperative stereotactic radiosurgery (SRS). The Kaplan–Meier method was used to analyze the disease-free survival (DFS) of all the 42 patients receiving postoperative radiotherapy and the time to progression (TTP) of 22 of these patients experiencing recurrence. A multivariate Cox proportional hazards model was used to detect prognostic factors of survival.ResultsIn the analysis of PORT patients, the median DFS was 8.33 years for PORT IMRT patients and 3.04 years for PORT SRS patients. The 10-year DFS incidence was 46.0% in the PORT IMRT group and 27.5% in the SRS group. Among the 22 patients who relapsed, the median TTP of other patients was 1.25 years, of which 3 received radiotherapy alone and 1 received symptomatic treatment, while the median TTP of surgical and surgical combined with radiotheray patients were 1.83 and 2.49 years, respectively (p=0.035).ConclusionPORT IMRT could prolong DFS compared with PORT SRS. It indicated that PORT IMRT radiotherapy technology was a feasible option for SFT/HPC. Moreover, TTP results of relapsed patients showed that, surgery and surgery combined with radiotherapy treatments have no significant difference on TTP in relapsed patients, but both of them were better than other treatments.
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- 2022
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14. LI-DWT- and PD-FC-MSPCNN-Based Small-Target Localization Method for Floating Garbage on Water Surfaces
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Ping Ai, Long Ma, and Baijing Wu
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image segmentation ,target location ,water-floating garbage ,discrete wavelet transform ,pulse-coupled neural network ,human visual lateral inhibition network ,Hydraulic engineering ,TC1-978 ,Water supply for domestic and industrial purposes ,TD201-500 - Abstract
Typically, the process of visual tracking and position prediction of floating garbage on water surfaces is significantly affected by illumination, water waves, or complex backgrounds, consequently lowering the localization accuracy of small targets. Herein, we propose a small-target localization method based on the neurobiological phenomenon of lateral inhibition (LI), discrete wavelet transform (DWT), and a parameter-designed fire-controlled modified simplified pulse-coupled neural network (PD-FC-MSPCNN) to track water-floating garbage floating. First, a network simulating LI is fused with the DWT to derive a denoising preprocessing algorithm that effectively reduces the interference of image noise and enhances target edge features. Subsequently, a new PD-FC-MSPCNN network is developed to improve the image segmentation accuracy, and an adaptive fine-tuned dynamic threshold magnitude parameter V and auxiliary parameter P are newly designed, while eliminating the link strength parameter. Finally, a multiscale morphological filtering postprocessing algorithm is developed to connect the edge contour breakpoints of segmented targets, smoothen the segmentation results, and improve the localization accuracy. An effective computer vision technology approach is adopted for the accurate localization and intelligent monitoring of water-floating garbage. The experimental results demonstrate that the proposed method outperforms other methods in terms of the overall comprehensive evaluation indexes, suggesting higher accuracy and reliability.
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- 2023
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15. Evidence of nested quasi-one-dimensional Fermi surface and decoupled charge-lattice orders in layered TaTe_{2}
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Yi Lin, Maximillian Huber, Sangeeta Rajpurohit, Yanglin Zhu, Khalid M. Siddiqui, Daniel H. Eilbott, Luca Moreschini, Ping Ai, Jonathan D. Denlinger, Zhiqiang Mao, Liang Z. Tan, and Alessandra Lanzara
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Physics ,QC1-999 - Abstract
The formations of charge and lattice orders are generally coupled in charge density wave (CDW) materials and share identical order wave vectors. Although this situation is usually satisfied in a large class of two-dimensional materials, it falls short in describing the so-called CDW-like phase transition in layered tantalum ditelluride (TaTe_{2}), accompanied by anomalous low temperature transport properties and a periodic lattice distortion (PLD). Here we combine angle-resolved photoemission spectroscopy and low energy electron diffraction to directly access the charge and lattice structures in 1T-polytypic TaTe_{2} and study the anomalous phase transition. Our data reveal the presence of a surprising quasi-one-dimensional Fermi surface with nesting (FSN) condition, despite its van der Waals layered structure. We find that the wave vectors of the FSN and PLD are different, suggesting the decoupled formation between charge and lattice orders. These conditions are accompanied by rich footprints in band structure, including Fermi surface suppression, minigaps, and satellite bands. Our results suggest that TaTe_{2} manifests intrinsic mixed dimensionality between its electronic and lattice structure and that the CDW-like phase transition is likely governed by multiple mechanisms. Our work provides routes for forging unconventional CDW phases and charge-lattice entanglement that would otherwise not be available in materials with fixed dimensionality.
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- 2022
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16. Deep Clustering Bearing Fault Diagnosis Method Based on Local Manifold Learning of an Autoencoded Embedding
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Jing An, Ping Ai, Cong Liu, Sen Xu, and Dakun Liu
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Bearing fault diagnosis ,autoencoded embedding representation ,local manifold learning ,manifold re-embedding ,deep clustering ,clusterable manifold ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
In many practical fault diagnosis applications, the acquisition of fault data labels requires substantial manpower and resources, which are sometimes impossible to achieve. To address this, an unsupervised bearing fault diagnosis method based on deep clustering is proposed. In this method, an autoencoder is initially applied to the signal spectrum to learn the initial representation. Then, its potential manifold is further searched, and a Gaussian mixture model is finally used for clustering. Experiments conducted on the Case Western Reserve University bearing datasets show that the proposed method can find the optimal clusterable manifold. Moreover, its clustering performance is better than those of the current advanced baseline methods, and it is only slightly complex. Thus, the effectiveness of the proposed method is verified.
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- 2021
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17. Effects of Metal and Metal Ion on Biomethane Productivity during Anaerobic Digestion of Dairy Manure
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Liang Yu, Do-Gyun Kim, Ping Ai, Hairong Yuan, Jingwei Ma, Quanbao Zhao, and Shulin Chen
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anaerobic digestion ,metal ,metal ion ,interspecies electron transfer (IET) ,essential mineral nutrient ,biomethane ,Fermentation industries. Beverages. Alcohol ,TP500-660 - Abstract
To overcome major limiting factors of microbial processes in anaerobic digestion (AD), metal and metal ions have been extensively studied. However, there is confusion about the effects of metals and metal ions on biomethane productivity in previous research. In this study, Zn and Zn2+ were selected as representatives of metals and metal ions, respectively, to investigate the effects on biomethane productivity. After the metals and metal ions at different concentrations were added to the batch AD experiments under the same mesophilic conditions, a Zn dose of 1 g/L and a Zn2+ dose of 4 mg/L were found to cause the highest biomethane production, respectively. The results indicate that metal (Zn) and metal ion (Zn2+) have different mechanisms to improve AD performance. There may be two possible explanations. To act as conductive materials in interspecies electron transfer (IET), relatively high doses of metals (e.g., 1 g/L of Zn, 10 g/L of Fe) are needed to bridge the electron transfer from syntrophic bacteria to methanogenic archaea in the AD process. As essential mineral nutrients, the AD system requires relatively low doses of metal ions (e.g., 4 mg/L of Zn2+, 5 mg/L of Fe2+) to supplement the component of various enzymes that catalyze anaerobic reactions and transformations. This research will provide clear insight for selecting appropriate amounts of metals or metal ions to enhance biomethane productivity for industrial AD processes.
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- 2023
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18. Combined Association of Tumoral PD-L1 Expression and Pretreatment Presence of Epstein-Barr Virus DNA With Risk Stratification and Prognosis of Patients With Nasopharyngeal Carcinoma
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Xiaoyu Li, Xingchen Peng, Sha Zhao, Hong Zhang, Yong Jiang, Fei Liu, and Ping Ai
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PD-L1 ,EBV ,nasopharyngeal carcinoma ,metastasis ,risk stratification ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
BackgroundLittle is known about whether the combination of tumor programmed death-ligand 1 (PD-L1) expression and pretreatment EBV DNA status can help stratify nasopharyngeal carcinoma (NPC) patients by risk of metastasis or predict prognosis.MethodsPD-L1 expression was assessed using immunohistochemical staining of 78 non-keratinizing NPC patients with clinical data. Survival outcomes and independent prognostic factors were identified.ResultsSeventy-eight patients were included, high PD-L1 expression was observed in 25 of 43 patients (58%) with metastasis, while it was observed only in 7 of 35 patients (20%) without metastasis. Multivariate analyses showed that progression-free survival (PFS) was independently predicted by tumoral PD-L1 expression and pretreatment EBV DNA status. When combining, 93.75% patients with high PD-L1 and EBV infection developed distant metastasis, and those patients were associated with worse PFS.ConclusionsBoth PD-L1 expression and pretreatment EBV DNA are closely related to metastasis and prognosis of NPC patients. Their combination can facilitate risk stratification and prognosis prediction, which may improve disease treatment and management.
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- 2022
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19. Yield and Quality of Rice under the Effects of Digestate Application
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Yi Ran, Xinlu Bai, Yan Long, and Ping Ai
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liquid digestate ,solid digestate ,rice growth ,rice grain quality ,Agriculture (General) ,S1-972 - Abstract
As a major measure to handle livestock manure, digestate is the by-product during biogas production in anaerobic fermentation. Digestate can be returned to cropland as a replacement for chemical fertilizer regarding its cost-effectiveness and rich nutrient content. However, the optimal rates of digestate to substitute chemical fertilizer have not been validated academically. A field study on nine treatments of no fertilizer, chemical fertilizer, and digestate at different rates was conducted to investigate the effects of substituting chemical fertilizer with digestate. The results revealed that replacing chemical fertilizer with liquid digestate did not significantly affect the rice growth regarding the maximum number of seedlings, plant height, tiller numbers, spikelets numbers, ear length, the number of grains per spike, and grain yields. However, improvements were found in the maximum number of seedlings, plant height, tiller number spikelet numbers, the area of the second and third backward leaves, grain yields, and quality when liquid and solid digestate were combined. Furthermore, taking the nutrient inputs, rice growth, grain yield, and quality into consideration, applying liquid digestate of 150 t ha−1 and 75 t ha−1 of liquid combined with 15 t ha−1 solid digestate was suggested for rice production at the study venue.
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- 2022
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20. Real-World Cost-Effectiveness Analysis of Gemcitabine and Cisplatin Compared to Docetaxel and Cisplatin Plus Fluorouracil Induction Chemotherapy in Locoregionally Advanced Nasopharyngeal Carcinoma
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Jiangping Yang, Jiaqi Han, Jinlan He, Baofeng Duan, Qiheng Gou, Ping Ai, Lei Liu, Yanchu Li, Kexing Ren, Feng Wang, Min Yao, and Nianyong Chen
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cost-effectiveness ,nasopharyngeal carcinoma ,induction chemotherapy ,gemcitabine ,docetaxel ,cisplatin ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
BackgroundAddition of gemcitabine and cisplatin (GP) or docetaxel and cisplatin plus fluorouracil (TPF) to concurrent chemoradiotherapy (CCRT) significantly improved survival in locoregionally advanced nasopharyngeal carcinoma (NPC). However, an economic evaluation of these regimens remains unknown. The purpose of this study is to compare the cost-effectiveness of GP versus TPF regimen in the treatment of locoregionally advanced NPC in China.Materials and methodsA comprehensive Markov model was developed to evaluate the health and economic outcomes of GP versus TPF regimen for patients with locoregionally advanced NPC. Baseline and clinical outcome were derived from 158 patients with newly diagnosed stage III-IVA NPC between 2010 and 2015. We evaluated the quality-adjusted life-years (QALYs), costs, and incremental cost-effectiveness ratios (ICERs) from the perspective of the Chinese healthcare system. One-way sensitive analysis explored the impact of uncertainty in key model parameters on results, and probabilistic uncertainty was assessed through a Monte Carlo probabilistic sensitivity analysis.ResultsGP regimen provided an additional 0.42 QALYs with incremental cost of $3,821.99, resulting in an ICER of $9,099.98 per QALY versus TPF regimen at the real-world setting. One-way sensitivity analysis found that the results were most sensitive to the cost and proportion of receiving subsequent treatment in two groups. The probability that GP regimen being cost-effective compared with TPF regimen was 86.9% at a willingness-to-pay (WTP) of $31,008.16 per QALY.ConclusionUsing real-world data, GP regimen was demonstrated a cost-effective alternative to TFP regimen for patients with locoregionally advanced NPC in China. It provides valuable evidence for clinicians when making treatment decisions to improve the cost-effectiveness of treatment.
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- 2020
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21. Deep Domain Adaptation Model for Bearing Fault Diagnosis with Domain Alignment and Discriminative Feature Learning
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Jing An, Ping Ai, and Dakun Liu
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Physics ,QC1-999 - Abstract
Deep learning techniques have been widely used to achieve promising results for fault diagnosis. In many real-world fault diagnosis applications, labeled training data (source domain) and unlabeled test data (target domain) have different distributions due to the frequent changes of working conditions, leading to performance degradation. This study proposes an end-to-end unsupervised domain adaptation bearing fault diagnosis model that combines domain alignment and discriminative feature learning on the basis of a 1D convolutional neural network. Joint training with classification loss, center-based discriminative loss, and correlation alignment loss between the two domains can adapt learned representations in the source domain for application to the target domain. Such joint training can also guarantee domain-invariant features with good intraclass compactness and interclass separability. Meanwhile, the extracted features can efficiently improve the cross-domain testing performance. Experimental results on the Case Western Reserve University bearing datasets confirm the superiority of the proposed method over many existing methods.
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- 2020
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22. Association between Serum Uric Acid and Non-Alcoholic Fatty Liver Disease according to Different Menstrual Status Groups
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Yanru Chen, Qiuping Huang, Ping Ai, Huamin Liu, Xueyu Chen, Xizhu Xu, Guoyong Ding, Yuejin Li, Xia Feng, Xiaohui Wang, Long Ji, Dong Li, and Yong Zhou
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Diseases of the digestive system. Gastroenterology ,RC799-869 - Abstract
Objective. The present study aimed to explore the association between SUA and NAFLD in women with different menstrual statuses. Methods. A total of 6043 women were selected from the Jidong and Kailuan communities for inclusion in the present study. The SUA levels of participants were divided into quartiles. NAFLD was determined by abdominal ultrasonography. Data from laboratory tests and clinical examination were collected, and basic information was obtained from standardized questionnaires. The menstrual status was stratified into menstrual period, menopause transition period, and postmenopause. Multivariate logistic regression models were used to determine the relationship between menstrual status, SUA, and NAFLD. Results. The levels of SUA in subjects with NAFLD in the menstrual period, menopause transition period, and postmenopause were 268.0 ± 71.1, 265.6 ± 67.8, and 286.7 ± 75.8 (mmol/L), respectively, and were higher than those in subjects without NAFLD. The adjusted odds ratios (ORs) with 95% confidence interval (CI) for NAFLD among participants in the menopause transition period and postmenopausal period were 1.10 (0.89–1.37) and 1.28 (1.04–1.58), respectively, compared with the menstrual period women. Compared to the lowest quartile of SUA, the adjusted ORs with 95% CI of the highest quartile for NAFLD were 2.24 (1.69–2.99) for females in the menstrual period, 1.92 (1.10–3.37) for females in the menopause transition period, and 1.47 (1.06–2.03) for females in postmenopause. Conclusions. Menstrual status was significantly correlated with NAFLD. High levels of SUA were associated with NAFLD in females during the three menstrual periods.
- Published
- 2019
- Full Text
- View/download PDF
23. Spectroscopic Evidence for an Additional Symmetry Breaking in the Nematic State of FeSe Superconductor
- Author
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Cong Li, Xianxin Wu, Le Wang, Defa Liu, Yongqing Cai, Yang Wang, Qiang Gao, Chunyao Song, Jianwei Huang, Chenxiao Dong, Jing Liu, Ping Ai, Hailan Luo, ChaoHui Yin, Guodong Liu, Yuan Huang, Qingyan Wang, Xiaowen Jia, Fengfeng Zhang, Shenjin Zhang, Feng Yang, Zhimin Wang, Qinjun Peng, Zuyan Xu, Youguo Shi, Jiangping Hu, Tao Xiang, Lin Zhao, and X. J. Zhou
- Subjects
Physics ,QC1-999 - Abstract
The iron-based superconductor FeSe has attracted much recent attention because of its simple crystal structure, distinct electronic structure, and rich physics exhibited by itself and its derivatives. Determination of its intrinsic electronic structure is crucial to understanding its physical properties and superconductivity mechanism. Both theoretical and experimental studies so far have provided a picture that FeSe consists of one holelike Fermi surface around the Brillouin zone center in its nematic state. Here we report direct observation of two holelike Fermi surface sheets around the Brillouin zone center, and the splitting of the associated bands, in the nematic state of FeSe by taking high-resolution laser-based angle-resolved photoemission measurements. These results indicate that, in addition to nematic order and spin-orbit coupling, there is an additional order in FeSe that breaks either inversion or time-reversal symmetries. The new Fermi surface topology asks for reexamination of the existing theoretical and experimental understanding of FeSe and stimulates further efforts to identify the origin of the hidden order in its nematic state.
- Published
- 2020
- Full Text
- View/download PDF
24. Techno-Economic Assessment of Three Modes of Large-Scale Crop Residue Utilization Projects in China
- Author
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Liang Meng, Ahmed Alengebawy, Ping Ai, Keda Jin, Mengdi Chen, and Yulong Pan
- Subjects
bioenergy projects ,crop residue utilization ,biogas ,AHP ,evaluation ,decision making ,Technology - Abstract
In China, the non-exploitation of bioenergy poses major problems and challenges. To solve bioenergy problems, considerable efforts have been made to expedite the construction of large-scale crop residue utilization projects. In this study, three principal supported modes of large-scale crop residue utilization projects were taken as empirical cases in Hubei province bioenergy planning. In terms of the overall benefit and sustainable development, a third-grade evaluation index system was established. The analysis was carried out using the analytical hierarchy process, principal component projection, and grey relational analysis. The conclusion indicates that according to the evaluation values, the sequence from best to worst was crop residue biogas project, crop residue briquette fuel project, and crop residue gasification project. Nevertheless, there was no remarkable difference in the overall evaluation values. The biogas project had certain advantages in terms of the production cost, soil improvement, and expenditure saving, whereas the gasification project was comparatively insufficient in environmental efficiency, product benefit, by-product disposal, and technical rationality. According to actual evaluation results, the unilateral determination approach of the single weight index can be seen as being overcome through the unified adaptation of the evaluation methods. The research results can serve as a reference for making investment decisions to build large-scale crop residue utilization projects.
- Published
- 2020
- Full Text
- View/download PDF
25. Orbital Origin of Extremely Anisotropic Superconducting Gap in Nematic Phase of FeSe Superconductor
- Author
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Defa Liu, Cong Li, Jianwei Huang, Bin Lei, Le Wang, Xianxin Wu, Bing Shen, Qiang Gao, Yuxiao Zhang, Xu Liu, Yong Hu, Yu Xu, Aiji Liang, Jing Liu, Ping Ai, Lin Zhao, Shaolong He, Li Yu, Guodong Liu, Yiyuan Mao, Xiaoli Dong, Xiaowen Jia, Fengfeng Zhang, Shenjin Zhang, Feng Yang, Zhimin Wang, Qinjun Peng, Youguo Shi, Jiangping Hu, Tao Xiang, Xianhui Chen, Zuyan Xu, Chuangtian Chen, and X. J. Zhou
- Subjects
Physics ,QC1-999 - Abstract
The iron-based superconductors are characterized by multiple-orbital physics where all the five Fe 3d orbitals get involved. The multiple-orbital nature gives rise to various novel phenomena like orbital-selective Mott transition, nematicity, and orbital fluctuation that provide a new route for realizing superconductivity. The complexity of multiple-orbital physics also requires us to disentangle the relationship between orbital, spin, and nematicity, and to identify dominant orbital ingredients that dictate superconductivity. The bulk FeSe superconductor provides an ideal platform to address these issues because of its simple crystal structure and unique coexistence of superconductivity and nematicity. However, the orbital nature of the low-energy electronic excitations and its relation to the superconducting gap remain controversial. Here, we report direct observation of the highly anisotropic Fermi surface and extremely anisotropic superconducting gap in the nematic state of the FeSe superconductor by high-resolution laser-based angle-resolved photoemission measurements. We find that the low-energy excitations of the entire hole pocket at the Brillouin zone center are dominated by the single d_{xz} orbital. The superconducting gap exhibits an anticorrelation relation with the d_{xz} spectral weight near the Fermi level; i.e., the gap size minimum (maximum) corresponds to the maximum (minimum) of the d_{xz} spectral weight along the Fermi surface. These observations provide new insights in understanding the orbital origin of the extremely anisotropic superconducting gap in the FeSe superconductor and the relation between nematicity and superconductivity in the iron-based superconductors.
- Published
- 2018
- Full Text
- View/download PDF
26. A sustainable, zero-waste approach for production of biohydrogen from chicken manure slurry by hybrid recycling of digestate
- Author
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Eraky, Mohamed, Elsayed, Mahdy, Ping, Ai, Tangjuan, Zhang, Yiqing, Yao, Liu, Nian, and Tawfik, Ahmed
- Published
- 2024
- Full Text
- View/download PDF
27. Chapter 15: African low-income countries’ leapfrogging development and the role of the BRICS countries: A case study of Ethiopia and Rwanda
- Author
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Ping, Ai, primary and Weiyun, Zhong, additional
- Published
- 2023
- Full Text
- View/download PDF
28. Recognition of Rural Residential Areas in Mountainous Regions Using Deep Learning Method.
- Author
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Lijuan Zheng, Wei Zhang, Xinlei Wang, and Ping Ai
- Published
- 2022
- Full Text
- View/download PDF
29. Ensemble approach for mid-long term runoff forecasting using hybrid algorithms.
- Author
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Zhaoxin Yue, Ping Ai, Dingbo Yuan, and Chuansheng Xiong
- Published
- 2022
- Full Text
- View/download PDF
30. Case report: From oral infection to life-threatening pneumonia: clinical considerations in Nocardia infection from a case.
- Author
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Kang Chen, Ying Wang, Jing Dong, Ping-Shang Wu, Jun Yang, and Guo-Ping Ai
- Published
- 2024
- Full Text
- View/download PDF
31. Building Recognition of UAV Remote Sensing Images by Deep Learning.
- Author
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Lijuan Zheng, Ping Ai, and Yu Wu
- Published
- 2020
- Full Text
- View/download PDF
32. Spin-polarized spatially indirect excitons in a topological insulator
- Author
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Ryo Mori, Samuel Ciocys, Kazuaki Takasan, Ping Ai, Kayla Currier, Takahiro Morimoto, Joel E. Moore, and Alessandra Lanzara
- Subjects
Multidisciplinary - Published
- 2023
33. A comparative life cycle assessment of biofertilizer production towards sustainable utilization of anaerobic digestate
- Author
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Ahmed Alengebawy, Badr A. Mohamed, Keda Jin, Tingting Liu, Nirmal Ghimire, Mohamed Samer, and Ping Ai
- Subjects
Environmental Engineering ,Renewable Energy, Sustainability and the Environment ,Environmental Chemistry ,Industrial and Manufacturing Engineering - Published
- 2022
34. Performance of Paracoccus pantotrophus MA3 in heterotrophic nitrification–anaerobic denitrification using formic acid as a carbon source
- Author
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Qun Huang, Ahmed Alengebawy, Xiangyu Zhu, Amin Farrukh Raza, Limei Chen, Wuxi Chen, Jiahao Guo, Ping Ai, and Demao Li
- Subjects
Glycine Hydroxymethyltransferase ,Methylenetetrahydrofolate Dehydrogenase (NADP) ,Nitrates ,Formates ,Nitrogen ,Glutamate Synthase ,Water ,Bioengineering ,General Medicine ,Wastewater ,Formate Dehydrogenases ,Nitrate Reductase ,Nitrification ,Aerobiosis ,Carbon ,Formate-Tetrahydrofolate Ligase ,Glutamate Dehydrogenase ,Glutamate-Ammonia Ligase ,Paracoccus pantotrophus ,Biofuels ,Ammonium Compounds ,Denitrification ,Anaerobiosis ,Biotechnology - Abstract
Excess amount of nitrogen in wastewater has caused serious concerns, such as water eutrophication. Paracoccus pantotrophus MA3, a novel isolated strain of heterotrophic nitrification-anaerobic denitrification bacteria, was evaluated for nitrogen removal using formic acid as the sole carbon source. The results showed that the maximum ammonium removal efficiency was observed under the optimum conditions of 26.25 carbon to nitrogen ratio, 3.39% (v/v) inoculation amount, 34.64 °C temperature, and at 180 rpm shaking speed, respectively. In addition, quantitative real-time PCR technique analysis assured that the gene expression level of formate dehydrogenase, formate tetrahydrofolate ligase, 5,10-methylenetetrahydrofolate dehydrogenase, serine hydroxymethyltransferase, respiratory nitrate reductase beta subunit, L-glutamine synthetase, glutamate dehydrogenase, and glutamate synthase were up-regulated compared to the control group, and combined with nitrogen mass balance analysis to conclude that most of the ammonium was removed by assimilation. A small amount of nitrate and nearly no nitrite were accumulated during heterotrophic nitrification. MA3 exhibited significant denitrification potential under anaerobic conditions with a maximum nitrate removal rate of 4.39 mg/L/h, and the only gas produced was N
- Published
- 2022
35. LI-DWT- and PD-FC-MSPCNN-Based Small-Target Localization Method for Floating Garbage on Water Surfaces
- Author
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Wu, Ping Ai, Long Ma, and Baijing
- Subjects
image segmentation ,target location ,water-floating garbage ,discrete wavelet transform ,pulse-coupled neural network ,human visual lateral inhibition network - Abstract
Typically, the process of visual tracking and position prediction of floating garbage on water surfaces is significantly affected by illumination, water waves, or complex backgrounds, consequently lowering the localization accuracy of small targets. Herein, we propose a small-target localization method based on the neurobiological phenomenon of lateral inhibition (LI), discrete wavelet transform (DWT), and a parameter-designed fire-controlled modified simplified pulse-coupled neural network (PD-FC-MSPCNN) to track water-floating garbage floating. First, a network simulating LI is fused with the DWT to derive a denoising preprocessing algorithm that effectively reduces the interference of image noise and enhances target edge features. Subsequently, a new PD-FC-MSPCNN network is developed to improve the image segmentation accuracy, and an adaptive fine-tuned dynamic threshold magnitude parameter V and auxiliary parameter P are newly designed, while eliminating the link strength parameter. Finally, a multiscale morphological filtering postprocessing algorithm is developed to connect the edge contour breakpoints of segmented targets, smoothen the segmentation results, and improve the localization accuracy. An effective computer vision technology approach is adopted for the accurate localization and intelligent monitoring of water-floating garbage. The experimental results demonstrate that the proposed method outperforms other methods in terms of the overall comprehensive evaluation indexes, suggesting higher accuracy and reliability.
- Published
- 2023
- Full Text
- View/download PDF
36. Sustainable Microplastic Remediation with Record Capacity Unleashed via Surface Engineering of Natural Fungal Mycelium Framework
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Xiao Fu, Shuai Zhang, Xu Zhang, Yan Zhang, Baoxi Li, Keda Jin, Xingwei Feng, Juan Hong, Xiang Huang, Hongliang Cao, Qiaoxia Yuan, Ping Ai, Hongbo Yu, and Qiang Li
- Subjects
Biomaterials ,Electrochemistry ,Condensed Matter Physics ,Electronic, Optical and Magnetic Materials - Published
- 2023
37. Cancer Metastases from Lung Adenocarcinoma Disappeared After Molecular Targeted Therapy: A Successfully Clinical Treatment Experience
- Author
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Meng-Jie Li, Jun Wei, Guo-Ping Ai, Ying Liu, and Jian Zhu
- Subjects
Pharmacology ,Molecular Medicine - Published
- 2022
38. Different Wave Structures for the (2+1)-Dimensional Korteweg-de Vries Equation
- Author
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Chun-Rong Qin, Jian-Guo Liu, Wen-Hui Zhu, Guo-Ping Ai, and M. Hafiz Uddin
- Subjects
Nonlinear Sciences::Exactly Solvable and Integrable Systems ,Article Subject ,Applied Mathematics ,General Physics and Astronomy ,Nonlinear Sciences::Pattern Formation and Solitons - Abstract
In this article, a (2+1)-dimensional Korteweg-de Vries equation is investigated. Abundant periodic wave solutions are obtained based on the Hirota’s bilinear form and a direct test function. Meanwhile, the interaction solutions between lump and periodic waves are presented. What is more, we derive the interaction solutions among lump, periodic, and solitary waves. Based on the extended homoclinic test technique, some new double periodic-soliton solutions are presented. Finally, some 3D and density plots are simulated and displayed to respond the dynamic behavior of these obtained solutions.
- Published
- 2022
39. Innovative approach for rapeseed straw recycling using black solider fly larvae: Towards enhanced energy recovery
- Author
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Mahdy Elsayed, Wu Li, Nashwa S. Abdalla, Ping Ai, Yanlin Zhang, and Abd El-Fatah Abomohra
- Subjects
Renewable Energy, Sustainability and the Environment - Published
- 2022
40. Evaluation and analysis of biogas potential from agricultural waste in Hubei Province, China
- Author
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Tingting Liu, Giovanni Ferrari, Andrea Pezzuolo, Ahmed Alengebawy, Keda Jin, Gaozhong Yang, Qiang Li, and Ping Ai
- Subjects
Benefit analysis ,Bioenergy ,Biogas potential ,Biomethane production ,Crop and livestock waste ,Animal Science and Zoology ,Agronomy and Crop Science - Published
- 2023
41. Development of Mg/La-layered double hydroxide nanocomposites and application of recovered phosphorus from modelled biogas slurry
- Author
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Yanru Ma, Yujun Shen, Haibo Meng, Jingtao Ding, Jian Wang, Ping Ai, Ming Zhu, Haibin Zhou, and Ying Zhang
- Subjects
Mechanics of Materials ,Waste Management and Disposal - Published
- 2022
42. Evidence for a delocalization quantum phase transition without symmetry breaking in CeCoIn 5
- Author
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Nikola Maksimovic, Daniel H. Eilbott, Tessa Cookmeyer, Fanghui Wan, Jan Rusz, Vikram Nagarajan, Shannon C. Haley, Eran Maniv, Amanda Gong, Stefano Faubel, Ian M. Hayes, Ali Bangura, John Singleton, Johanna C. Palmstrom, Laurel Winter, Ross McDonald, Sooyoung Jang, Ping Ai, Yi Lin, Samuel Ciocys, Jacob Gobbo, Yochai Werman, Peter M. Oppeneer, Ehud Altman, Alessandra Lanzara, and James G. Analytis
- Subjects
Multidisciplinary ,MSD-General ,General Science & Technology ,MSD-Quantum Materials ,Condensed Matter Physics ,Den kondenserade materiens fysik - Abstract
The study of quantum phase transitions that are not clearly associated with broken symmetry is a major effort in condensed matter physics, particularly in regard to the problem of high-temperature superconductivity, for which such transitions are thought to underlie the mechanism of superconductivity itself. Here we argue that the putative quantum critical point in the prototypical unconventional superconductor CeCoIn5 is characterized by the delocalization of electrons in a transition that connects two Fermi surfaces of different volumes, with no apparent broken symmetry. Drawing on established theory of f-electron metals, we discuss an interpretation for such a transition that involves the fractionalization of spin and charge, a model that effectively describes the anomalous transport behavior we measured for the Hall effect.
- Published
- 2022
43. Standard or extended STUPP? Optimal duration of temozolomide for patients with high-grade gliomas: a retrospective analysis
- Author
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Jingjing Wang, Yan Huang, Feng Zhao, Jianhui Chen, Ling He, Zheran Liu, Yiyan Pei, Zhigong Wei, Ruidan Li, Ping Ai, and Xingchen Peng
- Subjects
Dacarbazine ,Cancer Research ,Neurology ,Oncology ,Brain Neoplasms ,Temozolomide ,Humans ,Neurology (clinical) ,Glioma ,Glioblastoma ,Antineoplastic Agents, Alkylating ,Retrospective Studies - Abstract
Brain radiotherapy combined with concomitant and six cycles of adjuvant temozolomide (TMZ) is the standard treatment for newly diagnosed high-grade gliomas (HGGs). However, the optimal number of cycles of TMZ is still controversial. We conducted this retrospective cohort study to evaluate whether prolonging adjuvant TMZ beyond six cycles resulted in better survival outcomes.Patients with high-grade gliomas treated with standard brain radiotherapy combined with TMZ were retrospectively analysed. The duration of adjuvant TMZ ranged from 6 to 12 cycles. Those with 6 cycles of adjuvant TMZ were defined as the standard STUPP group, and those with 7-12 cycles were called the extended STUPP group. Median progression-free survival (PFS) and overall survival (OS) were estimated by the Kaplan-Meier method. The Cox proportional hazards model was adopted to estimate the Hazard ratio (HR) associated with PFS and OS.From September 2011 to May 2021, 372 patients were eligible (143 in the standard group, 229 in the extended group). Patients who received extended STUPP had better PFS and OS compared with standard STUPP. The median PFS for the standard STUPP group was 12 months and for the extended STUPP group 22 months (log-rank P 0.001). The median OS for the standard STUPP group and extended STUPP group were 12 months and 36 months, respectively (log-rank P 0.001). In the subgroup analysis, the two treatments did not differ in IDH-mutated patients, while patients with IDH wild-type had a significantly better response to extended treatment than to standard treatment (PFS: log-rank P = 0.004; OS log-rank P = 0.001). Patients with MGMT promoter methylation treated with extended STUPP obtained longer PFS and OS than those treated with standard STUPP (PFS: log-rank P = 0.015; OS log-rank P = 0.010). Adverse events including leukopenia (P 0.001), thrombocytopenia (P = 0.090), fatigue (P 0.001) and nausea/vomiting (P = 0.004) were more frequent in the extended group.Extended TMZ treatment was superior to standard 6-cycle TMZ for both PFS and OS. The incidence of toxicities in extended group was higher but tolerable.
- Published
- 2022
44. Sulforaphane suppresses skin squamous cell carcinoma cells proliferation through miR-199a-5p/Sirt1/CD44ICD signaling pathway
- Author
-
Yang Zhang, Ping Ai, Shang-zhou Chen, and Shu-ying Lei
- Subjects
Pharmacology ,Immunology ,Immunology and Allergy ,General Medicine ,Toxicology - Abstract
The present study aimed to explore the impact of sulforaphane on the growth of sSCC cells, and the activation of miR-199a-5pCell viability, count, apoptosis, and invasion assays were performed in the sSCC cell line (SCC-13) in which miR-199a-5p was over-expressed or under-expressed. The expression levels of miR-199a-5p, Sirt1 and CD44ICD mRNA were measured by quantitative real-time polymerase chain reaction (qRT-PCR).Sulforaphane significantly inhibited the cell growth and invasion of SCC-13 cells, and dramatically induced cell apoptosis. Additionally, sulforaphane also greatly increased miR-199a-5p expression and suppressed Sirt1 and CD44ICD mRNA levels. Moreover, miR-199a-5p overexpression considerably down-regulated the expressions of Sirt1 and CD44ICD mRNA, and promoted the ability of sulforaphane to represses cell growth and invasion, and to induce cell apoptosis. However, miR-199a-5p underexpression has the opposite effects.Sulforaphane appears to inhibit sCC progression by impacting its growth and invasion ability, and regulates miR-199a-5p/Sirt1 and CD44ICD signaling pathways, and may be utilized to develop a curative approach for sSCC.
- Published
- 2022
45. Case Report: Recombinant Human Endostatin Plus Chemotherapy for Epidermal Growth Factor Receptor-Negative Miliary Lung Adenocarcinoma
- Author
-
Jian Zhu, Ya Xu, Wen-Cai Huang, Tao Ji, Guo-Ping Ai, and Yan-Hong Gao
- Subjects
Cancer Research ,Oncology - Abstract
Except for the traditional chemotherapy, few treatments strategy about miliary intrapulmonary carcinomatosis (MIPC) have been reported in the existing literature. In this report, we primarily discussed the possible etiology and the potentially effective treatment options for a patient with MIPC who benefited from combined treatment. A nonsmoking woman was diagnosed with MIPC at an advanced stage. Gene detection showed an EGFR negative status. She accepted first-line chemotherapy with pemetrexed and cisplatin, and the tumor progressed. Next, PD-1 inhibitors plus pemetrexed and cisplatin were administered, and the tumor remained uncontrolled. After two cycles of recombinant human endostatin plus second-line chemotherapy, the numerous pulmonary nodules had all nearly completely disappeared, while an accentuated decrease in the primary tumor volume was observed. Moreover, biochemical markers, including the patient’s tumor markers, also trended toward normal. This report describes the first case of a MIPC patient who significantly responded to antiangiogenic therapy combined with chemotherapy. Anti-angiogenic therapy may be a possible strategy for the EGFR-negative lung adenocarcinoma population.
- Published
- 2022
46. Positive effect of Ca addition on the risk of Cu and Zn in digestate as biofertilizer
- Author
-
Gaozhong Yang, Keda Jin, Mohamed Eraky, Jingjing Peng, Qiang Li, Liang Meng, Haorui Zhang, and Ping Ai
- Subjects
Process Chemistry and Technology ,Chemical Engineering (miscellaneous) ,Pollution ,Waste Management and Disposal - Published
- 2023
47. Recycling cinder in efficient methane production from wheat straw via solid-state anaerobic digestion (SS-AD)
- Author
-
Hongyi Lyu, Jing Chen, Mengyi Wang, Huaiwen Zhang, Heng Wu, Tairan Liu, Xuanmin Yang, Xiaohui Guo, Xiaojiao Wang, Ping Ai, Zhenyu Li, Minsong Lin, Jinxing Wang, Chunyan Xu, Ling Qiu, Chao Shi, and Yiqing Yao
- Subjects
General Chemical Engineering ,Environmental Chemistry ,General Chemistry ,Industrial and Manufacturing Engineering - Published
- 2023
48. [Influence of Different Hydraulic Disturbance Intensities on the Migration of Aged PSMPs Between Sediment and Water]
- Author
-
Xiang-Xiang, Wu, Ping, Ai, and Da-Peng, Li
- Subjects
China ,Geologic Sediments ,Lakes ,Microplastics ,Polystyrenes ,Water ,Plastics ,Water Pollutants, Chemical ,Environmental Monitoring - Abstract
Taking Taihu Lake as the research object, for the aged polystyrene microplastics (PSMPs), the influence of hydraulic disturbance intensity on the migration process of PSMPs between mud and water phases was discussed, and the morphology and elements of PSMPs were analyzed using microscopic characterization methods including FTIR and SEM-EDS, as was done for characterization. The results showed that under disturbance conditions (55 r·min
- Published
- 2022
49. Agro-environmental sustainability of using digestate fertilizer for solanaceous and leafy vegetables cultivation: Insights on fertilizer efficiency and risk assessment
- Author
-
Keda Jin, Yi Ran, Ahmed Alengebawy, Gaozhong Yang, Shijiang Jia, and Ping Ai
- Subjects
Crops, Agricultural ,China ,Soil ,Environmental Engineering ,Nitrogen ,Metals, Heavy ,Vegetables ,Agriculture ,General Medicine ,Management, Monitoring, Policy and Law ,Fertilizers ,Waste Management and Disposal ,Risk Assessment - Abstract
Digestate generated from anaerobic digestion (AD) has been widely used as digestate fertilizer (DF) for plant growth, but its application should be comprehensively investigated. This study evaluates the effects of different amounts of DF on crop growth, nutrient use efficiency (NUE), soil properties, and potential negative impacts of DF application (salinity and heavy metals (HMs)) with two different crops (Eggplant and Shanghai cabbage). In eggplant cultivation, the yield increased with the increase of DF amount, and the yield of the DF-680 group was the highest (65.4 t/ha) under the highest fertilizer amount. However, due to high ammonia volatilization loss and excessive application, the NUE of DF was only about half of that of chemical fertilizer (CF). Significantly different from eggplant, the high application amount of DF resulted in yield reduction in Shanghai cabbage cultivation. The yield and NUE of the DF-170 group were the highest, the yield was 46.5 t/ha, and the NUE was more than twice compared to CF. Moreover, DF can raise soil nitrogen storage and alleviate soil acidification caused by fertilization in both batches of cultivation. Nevertheless, the electrical conductivity (EC) value of the soil was increased by 2-3 times, and the long-term application may lead to soil salinization. On the other hand, the increase of DF application elevated the content of copper (Cu), zinc (Zn), and cadmium (Cd) in soil significantly but did not cause HMs contamination in crops and tillage soil. In summary, reasonable application amounts and methods should be considered when applying DF.
- Published
- 2022
50. Understanding the environmental impacts of biogas utilization for energy production through life cycle assessment: An action towards reducing emissions
- Author
-
Ahmed Alengebawy, Badr A. Mohamed, Nirmal Ghimire, Keda Jin, Tingting Liu, Mohamed Samer, and Ping Ai
- Subjects
Fossil Fuels ,Life Cycle Stages ,Biofuels ,Climate Change ,Animals ,Environment ,Biochemistry ,General Environmental Science - Abstract
Unlike renewable energy sources, burning fossil fuels has severe environmental impacts, such as greenhouse gas (GHG) emissions and climate change. Therefore, this study was conducted to assess and compare the environmental impacts of three biogas utilization scenarios for energy production. The life cycle assessment (LCA) method was used to compare (i) biogas combustion in combined heat and power (CHP) unit, (ii) biogas burning in a steam boiler, and (iii) biogas upgrading using pressure swing adsorption (PSA) unit to determine the most sustainable option. The results revealed that the upgrading scenario was the best option, achieving emission savings in 8 out of 10 investigated impact categories. Among them, the emission saving was the highest in the marine aquatic ecotoxicity category (-4276.97 kg 1,4-DB eq./MJ). The CHP scenario was the second-best option, followed by the boiler scenario (worst option), and both had the most beneficial performance in the ozone depletion potential category with 6.29E-08 and 9.88E-08 kg CFC-11-eq./MJ, respectively. The environmental burdens of the boiler scenario were the highest in the marine aquatic ecotoxicity category (248.92 kg 1,4-DB eq./MJ). Although the CHP and boiler scenarios contributed to environmental burdens in all impact categories, they achieved beneficial performances compared to fossil fuel-based systems.
- Published
- 2022
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