926 results on '"Ting Ji"'
Search Results
2. Differences between uncapping and removal behaviors in Apis cerana from the perspective of long non-coding RNAs
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Xiao Li, Xiaoxiao Yang, Fangdong You, Chunhui Miao, Meng Li, Kang Wang, Qingsheng Niu, Ting Ji, Zhi Wang, and Zheguang Lin
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Honeybee ,Apis cerana ,Antenna ,lncRNA ,Hygienic behavior ,Uncapping ,Biotechnology ,TP248.13-248.65 ,Genetics ,QH426-470 - Abstract
Abstract Background Hygienic behavior, a specialized form of immune response evolved in social insects, plays a crucial role in safeguarding colonies from disease spread. In honeybee colonies, such behavior typically entails the dual steps of uncapping and removal of unhealthy and deceased brood. Although in recent years, numerous studies have examined the development of hygienic behavior, the mechanisms underlying the division in the performance of uncapping and removal have yet to be sufficiently elucidated. In this regard, long non-coding RNAs (lncRNAs) have been evidenced to be engaged in regulating the physiological activities of honeybees; however, whether lncRNAs are likewise involved in the uncapping and removal tasks has not been clarified. Results In this study, the strong hygienic Apis cerana worker bees were used and the processes of uncapping and removal behaviors in three colonies were assayed with freeze-killed brood in the field. We then sequenced the antennal RNAs of honeybees to identify differentially expressed lncRNAs and performed lncRNA-mRNA association analysis to establish the differences between uncapping and removal. We detected 1,323 differentially expressed lncRNAs in the antennae, and the findings of lncRNA-mRNA association analyses revealed that the target genes of differentially expressed lncRNAs between uncapping and removal worker bees were predominantly linked to response to stimulus, receptor activity, and synapse. Notably, among the lncRNAs enriched in cellular response to stimulus, XR_001766094.2 was exclusively expressed in the uncapping worker bees. Based on these findings, we hypothesize that XR_001766094.2 plays a key role in distinguishing uncapping from removal behaviors by responding to external stimulus, thereby suggesting that the division of hygienic behaviors is governed by differential thresholds of responsiveness to environmental cues. Conclusion We characterized differences in the uncapping and removal behaviors of worker bees from a perspective of lncRNAs. Uncapping bees may be equipped with a more rapid stimulatory response and more acute olfactory sensitivity, contributing to the rapid hygienic behavior in honeybee colonies. Our results thus establish a foundation for potential lncRNA-mediated gene expression regulation in hygienic behavior.
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- 2024
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3. Prevalence and genotype distribution of human papillomavirus infection among 66000 women from 2014 to 2023 in the plateau region of Southwest China
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Jian-Peng Hu, Jun-Ling Wang, Yun Li, Yuan Feng, Can-Qiong Tian, Guo-Hui Zhang, Xue-Qin Chen, Hong-Xia Liu, Jin-Si Yang, Zhe-Wei Fang, Yao-Xing Li, Zong-Sheng Wu, Rui Zhu, Xiu-Ping Li, Qian Xiong, Lian-Hao Gao, Ting Ji, Jian-Dong Zhang, Jian-Mei Song, Qi Chen, Shu-Min Li, Fei He, Chun-Ju Yang, and Hong-Wei Li
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Human papillomavirus ,Genotypes ,Cervical cancer ,Prevalence ,Vaccine ,Plateau region of Southwest China ,Infectious and parasitic diseases ,RC109-216 - Abstract
Abstract Background Persistent infection with high-risk human papillomavirus (HR-HPV) plays a key role in the onset of cervical cancer. This study was designed to examine the epidemiological trends and genotype distribution of HPV from 2014 to 2023 in the plateau region of Southwest China. Methods The findings could offer valuable insights for clinical screening of cervical cancer and the formulation of HPV vaccination policies. This retrospective study analyzed 66,000 women who received HPV-DNA testing at the First People’s Hospital of Qujing, Yunnan, China, between 2014 and 2023. The cohort consisted of 33,512 outpatients, 3,816 inpatients, and 28,672 individuals undergoing health examinations. Cervical cells were collected for DNA extraction, and PCR amplification along with Luminex xMAP technology were used to detect 27 HPV genotypes. The data analysis was conducted using GraphPad Prism and IBM SPSS Statistics 27 software. Results The overall HPV infection rate at the First People’s Hospital of Qujing declined from 24.92% in 2014 to 16.29% in 2023, averaging 16.02%. Specific infection rates were 18.50% among outpatients, 12.97% among inpatients, and 13.53% for health examination attendees. The predominant high-risk HPV genotypes identified were HPV52 (2.61%), HPV16 (2.06%), HPV58 (1.81%), HPV53 (1.55%), and HPV39 (1.09%). Meanwhile, the most frequent low-risk HPV genotypes were HPV6 (1.30%), HPV61 (1.21%), and HPV11 (0.85%). In HPV-positive cases, the distribution of single, double, triple, and quadruple or more infections were 79.90%, 15.17%, 3.59%, and 1.33%, respectively. The proportions of pure LR-HPV, pure HR-HPV, and mixed infections were 22.16%, 67.82%, and 10.02%, respectively. Age-specific analysis revealed a bimodal distribution of HPV infection, with the infection rate rapidly decreasing from 44.02% in the ≤ 19 age group to 19.55% in the 20–29 age group and 13.84% in the 30–39 age group, followed by a gradual increase to 14.64% in the 40–49 age group, 16.65% in the 50–59 age group, and 22.98% in the ≥ 60 age group. The coverage rates of the three available vaccines are all below 50%. The results of this study indicated a declining trend in HPV prevalence in the plateau region of Southwest China over the period from 2014 to 2023, especially in the reduction of genotypes targeted by vaccines. Conclusion There were significant variations in the genotypes prevalent among different age groups, years, and patient sources within the same region. The underwhelming vaccination rates emphasize the critical need for developing either a multivalent vaccine or a personalized vaccine that targets the HPV genotypes common in the Chinese population. Furthermore, vaccinating adolescents to curb HPV infection and ensuring regular cervical cancer screenings for postmenopausal women are crucial steps.
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- 2024
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4. Effects of royal jelly and its extracts on endometrial receptivity and MCF-7 cell growth in rats with thin endometrium
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Ming Zheng, Nan Zhang, Qianyang Lv, Jinzhong Xu, Kai Xu, Lili Wu, Dejun Ji, Yi Zhang, Kang Wang, Qingsheng Niu, Zheguang Lin, Zhi Wang, and Ting Ji
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Royal jelly ,Thin endometrium ,Protein ,Fatty acid ,MCF-7 cells ,Nutrition. Foods and food supply ,TX341-641 - Abstract
Royal jelly (RJ) is rich in various nutrients, including proteins and amino acids. RJ consumption improves sexual and urinary function in postmenopausal women, possibly owing to its hormone-like effects. Currently, hormone regulation and assisted reproductive technologies are widely used to treat thin endometria; however, high doses of these drugs can add to liver burden. In this study, RJ proteins and fatty acids were isolated, and their therapeutic effects on thin endometria were investigated in vivo and in vitro to verify their hormone-like regulatory effects. The results showed that RJ and its extracts could regulate endometrial receptivity-related factor expression levels in rats with a thin endometrium, accelerate MCF-7 cell apoptosis, and increase estrogen receptor expression in MCF-7 cells wherein. The estrogen-like effects of RJ and the fatty acids may be the main contributors. RJ may be a potential natural hormone replacement therapy.
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- 2024
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5. Possible interactions between gut microbiome and division of labor in honey bees
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Kang Wang, Ming Zheng, Minqi Cai, Yi Zhang, Yuanchan Fan, Zheguang Lin, Zhi Wang, Qingsheng Niu, and Ting Ji
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division of labor ,gut microbiome ,honey bee ,pollen ,Ecology ,QH540-549.5 - Abstract
Abstract Recent studies have provided new insights into the role of the microbiome in shaping host behavior. However, the relationship between the temporal division of labor among honey bees (Apis mellifera) and their gut microbial community has not been widely studied. Therefore, we aimed to evaluate the link between the gut microbiome and division of labor in honey bees by examining the microbial absolute abundance and relative composition of 7‐day‐old nurse bees and 28‐day‐old forager bees from a natural hive, as well as those of worker bees of the same 14‐day‐old age showing different behaviors in a manipulated hive. We found that forager bees had fewer core bacteria, particularly gram‐positive fermentative genera such as Lactobacillus and Bifidobacterium, with Bifidobacterium asteroides being the most sensitive to host behavioral tasks. Our results showed that forager bees have lower gut community stability compared to nurse bees, suggesting that their gut community is more susceptible to invasion by non‐core members. Furthermore, a pollen limitation experiment using caged honey bees indicated that dietary changes during behavioral shifts may be a driving factor in honey bee microbial diversity. This study contributes to a greater understanding of the interaction between the gut microbiome and behavioral tasks and provides a foundation for future assays.
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- 2024
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6. Alternative Splicing and Alternative Polyadenylation-Regulated Cold Stress Response of Apis cerana
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Yuanchan Fan, Dan Yao, Jinmeng Ma, Fangdong You, Xiaoping Wei, and Ting Ji
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honeybee ,Apis cerana ,alternative splicing ,alternative polyadenylation ,cold stress ,cold tolerance ,Science - Abstract
Temperature is a pivotal ecological factor in the regulation of insect survival and reproduction [...]
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- 2024
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7. Internet gaming addiction among children and adolescents with non-suicidal self-Injury: A network perspective
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Yuan Yang, Yanqi Ma, Rui Zhou, Ting Ji, and Cailan Hou
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Internet gaming addiction ,NSSI ,Child ,Adolescents ,Network analysis ,Mental healing ,RZ400-408 - Abstract
Background: Internet gaming addiction is a growing global concern and mental health burden. Currently, no study has examined Internet gaming addiction among individuals with non-suicidal self-injury (NSSI). This study aims to examine the epidemiology, correlates, and network structure of Internet gaming addiction among children and adolescents with NSSI in China. Methods: This was a cross-sectional study conducted in Guangdong Mental Health Center, China, from Dec 2019 to Dec 2021. The 13-item Chinese Internet gaming addiction scale, SAS, SDS, and UCLA loneliness scale were adopted to evaluate patient's internet gaming addiction, anxiety, depression and loneliness. Univariate analyses, multivariate logistic regression, and network analysis were conducted. Results: A total of 110 children and adolescents with NSSI behaviors participated in the study, and 45 (40.9%) of them reported Internet gaming addiction. Multivariate logistic regression analysis revealed that male participants (OR = 6.047, P = 0.001) and those living on campus (OR = 2.677, P = 0.039) were more likely to suffer from Internet gaming addiction. Network analysis revealed that item1 (‘Always thinking about online games when not playing’), item6 (‘Clearly aware of the dangers of online games but fail to stop’), and item3 (‘Moody / anxious / agitated / angry while not playing’) were core symptoms for the identification of Internet gaming addiction, while item9 (‘loss of interest’), and item13 (‘deceiving’) were the least influential symptoms in the network. Conclusions: Internet gaming addiction was prevalent among children and adolescents with NSSI. ‘Preoccupation’, ‘Unsuccessful attempts to control playing’, and ‘Withdrawal’ were of key importance for identifying Internet gaming addiction. Ongoing clinical care and targeted interventions to address these symptoms (e.g., strengthening self-control) may be important for reducing the risk of Internet gaming addiction in children and adolescents with NSSI.
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- 2023
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8. A key gene for the climatic adaptation of Apis cerana populations in China according to selective sweep analysis
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Yi Zhang, Hao Xu, Zhi Wang, Haoliang Jie, Fuchao Gao, Minqi Cai, Kang Wang, Dafu Chen, Rui Guo, Zheguang Lin, Qingsheng Niu, and Ting Ji
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Apis cerana ,Adaptive radiation distribution ,Climate change ,Population genomics ,Selective sweep analysis ,Biotechnology ,TP248.13-248.65 ,Genetics ,QH426-470 - Abstract
Abstract Background Apis cerana is widely distributed in China and, prior to the introduction of western honeybees, was the only bee species kept in China. During the long-term natural evolutionary process, many unique phenotypic variations have occurred among A. cerana populations in different geographical regions under varied climates. Understanding the molecular genetic basis and the effects of climate change on the adaptive evolution of A. cerana can promote A. cerana conservation in face of climate change and allow for the effective utilization of its genetic resources. Result To investigate the genetic basis of phenotypic variations and the impact of climate change on adaptive evolution, A. cerana workers from 100 colonies located at similar geographical latitudes or longitudes were analyzed. Our results revealed an important relationship between climate types and the genetic variation of A. cerana in China, and a greater influence of latitude compared with longitude was observed. Upon selection and morphometry analyses combination for populations under different climate types, we identified a key gene RAPTOR, which was deeply involved in developmental processes and influenced the body size. Conclusion The selection of RAPTOR at the genomic level during adaptive evolution could allow A. cerana to actively regulate its metabolism, thereby fine-tuning body sizes in response to harsh conditions caused by climate change, such as food shortages and extreme temperatures, which may partially elucidate the size differences of A. cerana populations. This study provides crucial support for the molecular genetic basis of the expansion and evolution of naturally distributed honeybee populations.
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- 2023
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9. Revealing the Development Patterns of the Mandibular Glands of Apis mellifera carnica Based on Transcriptomics and Morphology
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Chunlei Pan, Yi Zhang, Chunguang Liu, Zhihao Zhang, Liang Tao, Kang Wang, Zheguang Lin, Ting Ji, and Fuchao Gao
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Apis mellifera carnica ,mandibular gland ,royal jelly ,single-male insemination ,transcriptome ,Science - Abstract
The mandibular gland in worker bees synthesizes and secretes the organic acids present in royal jelly, and its development directly affects yield and quality. Therefore, we aimed to analyze the differences in morphology and gene expression in the mandibular glands of Apis mellifera carnica worker bees of different ages (3, 6, 9, 12, and 16 d). We dissected their mandibular glands and performed morphological and transcriptomic analyses to investigate the development of the mandibular gland and the molecular regulatory mechanisms involved in royal jelly secretion. Microscopy revealed that mandibular gland development is likely completed in the early stages. There were no significant differences in the structural morphology or organelles involved in the secretion of royal jelly at different ages. Transcriptomics revealed a total of 1554 differentially expressed genes, which were mainly involved in fat metabolism, lipid transport, and energy metabolism. The extracellular matrix–receptor interaction pathway was significantly enriched and contributed to the royal jelly secretion process. These results elucidate the genetic basis of the role of the mandibular gland in royal jelly secretion in A. mellifera and provide a reference for the genetic improvement of bees with high royal jelly production in the future.
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- 2024
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10. Editorial: Biotic and abiotic stresses on honeybee physiology and colony health
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Zheguang Lin, Ming Zheng, Zhiguo Li, and Ting Ji
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colony losses ,pathogen and parasite ,agrochemical ,environmental change ,nutritious diet ,Physiology ,QP1-981 - Published
- 2023
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11. FOLIO Successfully Goes Alive in the Largest Public Library in China
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Gang Zhou, Chunjing Zhang, Ting Ji, Jiangchun Zhou, and Zheyu Zhang
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Bibliography. Library science. Information resources - Abstract
The official opening of Shanghai Library East on September 28, 2022 marked the full implementation of FOLIO platform in the Shanghai Library. The Shanghai Library has developed and implemented applications for library traditional and smart services based on the FOLIO technical framework. This paper mainly introduces the process, difficulties, and solutions during the FOLIO implementation in the Shanghai Library, and provides a summary of the various activities of a Chinese library network (the Yunhan Alliance) established in 2021.
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- 2023
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12. Transfer Printing of Perovskite Whispering Gallery Mode Laser Cavities by Thermal Release Tape
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Guo-Hui Li, Bo-Lin Zhou, Zhen Hou, Yan-Fu Wei, Rong Wen, Ting Ji, Yi Wei, Yu-Ying Hao, and Yan-Xia Cui
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Transfer printing ,Perovskite nanocavities ,Laser ,Thermal release tape ,Materials of engineering and construction. Mechanics of materials ,TA401-492 - Abstract
Abstract The outstanding optoelectrical properties and high-quality factor of whispering gallery mode perovskite nanocavities make it attractive for applications in small lasers. However, efforts to make lasers with better performance have been hampered by the lack of efficient methods for the synthesis and transfer of perovskite nanocavities on desired substrate at quality required for applications. Here, we report transfer printing of perovskite nanocavities grown by chemical vapor deposition from mica substrate onto SiO2 substrate. Transferred perovskite nanocavity has an RMS roughness of ~ 1.2 nm and no thermal degradation in thermal release process. We further use femtosecond laser to excite a transferred perovskite nanocavity and measures its quality factor as high as 2580 and a lasing threshold of 27.89 μJ/cm2 which is almost unchanged as compared with pristine perovskite nanocavities. This method represents a significant step toward the realization of perovskite nanolasers with smaller sizes and better heat management as well as application in optoelectronic devices.
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- 2022
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13. Multiobjective Electric Vehicle Charging Network Planning Considering Chance-Constraint on the Travel Distance for Charging
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Yunxiang Guo, Xinsong Zhang, Daxiang Li, Chenghong Gu, Cheng Lu, Ting Ji, and Yue Wang
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Transportation engineering ,TA1001-1280 ,Applications of electric power ,TK4001-4102 - Abstract
Electric vehicle charging stations (EVCSs) are important infrastructures to support sustainable development of electric vehicles (EVs), by providing convenient, rapid charging services. Therefore, the planning of electric vehicle charging network (EVCN) has attracted wide interest from both industry and academia. In this paper, a multiobjective planning model for EVCN is developed, where a fixed number of EVCSs are planned in the traffic network (TN) to achieve two objectives, i.e., minimizing both average travel distance for charging (TDfC) of EVs and investment costs of EVCN. According to the random characteristics of EVs’ TDfC, its constraint is presented as a chance constraint in the developed EVCN planning model. The nondominated sorting genetic Algorithm II with the constraint domination principle (NSGA-II-CDP) is customized to solve the developed multiobjective EVCN planning model, by designing a special coding scheme, a crossover operator, and a mutation operator. Then, a maximum gradient principle of investment revenue is designed to select the optimal planning strategy from the Pareto-optimal solution set, when taking the investment return ratio as primary consideration. A 25-node TN is used to justify the effectiveness of the developed methodology.
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- 2023
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14. Acute and chronic viruses mediated by an ectoparasite targeting different developmental stages of honeybee (Apis mellifera and Apis cerana) brood
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Zheguang Lin, Nan Zhang, Zhi Wang, Mingliang Zhuang, Qi Wang, Defang Niu, Paul Page, Kang Wang, Qingsheng Niu, and Ting Ji
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honeybee ,deformed wing virus (DWV) ,Israeli acute paralysis virus (IAPV) ,Varroa destructor ,social apoptosis ,Veterinary medicine ,SF600-1100 - Abstract
The health of the western honeybee, Apis mellifera, the most crucial pollinator, has been challenged globally over the past decades. An ectoparasitic mite, Varroa destructor, together with the viruses it vectored, is generally regarded as the vital pathogenic agent. Although the poor health status of A. mellifera compared to its eastern counterpart, Apis cerana, has been broadly identified, the underlying mechanism remains poorly understood and comparison between susceptible and resistant hosts will potentially ameliorate this predicament. Here, we investigated the impacts of two widespread viruses—deformed wing virus type A (DWV-A) and Israeli acute paralysis virus (IAPV), mediated by V. destructor mite, on the capped developing honeybee brood, in the absence of adult workers, of A. mellifera and A. cerana, with positive and negative controls. Our results demonstrated that the endogenous viruses imposed limited damage on the hosts even if the brood was wounded. In contrast, the exogenous viruses introduced by ectoparasites triggered variable mortality of the infested brood between host species. Intriguingly, death causes of both honeybee species presented a similar trend: the acute IAPV generally causes morbidity and mortality of late larvae, while the chronic DWV-A typically leads to brood mortality during and after pupation. Notably, the susceptible immature A. cerana individuals, supported by higher observed mortality and a lower virus tolerance, serve the interests of the colony and foster the overall survival of a resistant honeybee superorganism. These results improve our understanding of the interactions between viruses carried by ectoparasites and their developing hosts, and the novel insight of weak individuals fostering strong colonies may promote breeding efforts to mitigate the indefensible colony losses globally.
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- 2022
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15. Effect of carbendazim on honey bee health: Assessment of survival, pollen consumption, and gut microbiome composition
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Kang Wang, Heng Chen, Rong-Li Fan, Zhe-Guang Lin, Qing-Sheng Niu, Zhi Wang, and Ting Ji
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Carbendazim ,Gut microbiome ,Honey bee ,Pollen consumption ,Survival ,Environmental pollution ,TD172-193.5 ,Environmental sciences ,GE1-350 - Abstract
Gut microbiota and nutrition play major roles in honey bee health. Recent reports have shown that pesticides can disrupt the gut microbiota and cause malnutrition in honey bees. Carbendazim is the most commonly used fungicide in China, but it is not clear whether carbendazim negatively affects the gut microbes and nutrient intake levels in honey bees. To address this research gap, we assessed the effects of carbendazim on the survival, pollen consumption, and sequenced 16 S rRNA gene to determine the bacterial composition in the midgut and hindgut. Our results suggest that carbendazim exposure does not cause acute death in honey bees even at high concentrations (5000 mg/L), which are extremely unlikely to exist under field conditions. Carbendazim does not disturb the microbiome composition in the gut of young worker bees during gut microbial colonization and adult worker bees with established gut communities in the mid and hindgut. However, carbendazim exposure significantly decreases pollen consumption in honey bees. Thus, exposure of bees to carbendazim can perturb their beneficial nutrition homeostasis, potentially reducing honey bee immunity and increasing their susceptibility to infection by pathogens, which influence effectiveness as pollinators, even colony health.
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- 2022
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16. Langerhans Cell Histiocytosis Involving the Thymus and Heart With Simultaneous Thymoma: A Case Report
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Ting Ji, Yuxia Zhong, and Deyun Cheng
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Langerhans cell histiocytosis ,thymoma ,thymus ,heart ,18FDG-PET/CT ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Langerhans cell histiocytosis (LCH) is a rare disease characterized by clonal expansion of CD1a+/CD207+ cells in lesions. The most frequent sites involved are bone and, less commonly, lymph nodes, lungs, and skin. The thymus or heart is rarely involved with LCH. In this case, we present a 73-year-old woman with a mediastinal mass. Histopathology after thymectomy identified this mass as type AB thymoma; notably, subsequent immunohistochemical tests showed lesions of LCH scattered in the region of thymoma. 18-Fluorodeoxyglucose PET/CT (18-FDG-PET/CT) was performed to make an overall assessment of the extent of this disease, which demonstrated suspicious cardiac involvement of LCH. This report highlights the importance of differentiating abnormalities of the thymus or mediastinal mass from LCH and the necessity of comprehensive evaluation for patients with LCH.
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- 2022
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17. Evolution of piggyBac Transposons in Apoidea
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Xueyuan Li, Zhongxia Guan, Feng Wang, Yali Wang, Emmanuel Asare, Shasha Shi, Zheguang Lin, Ting Ji, Bo Gao, and Chengyi Song
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Apoidea ,piggyBac ,transposons ,evolution ,Science - Abstract
In this study, we investigated the presence of piggyBac (PB) transposons in 44 bee genomes from the Apoidea order, which is a superfamily within the Hymenoptera, which includes a large number of bee species crucial for pollination. We annotated the PB transposons in these 44 bee genomes and examined their evolution profiles, including structural characteristics, distribution, diversity, activity, and abundance. The mined PB transposons were divided into three clades, with uneven distribution in each genus of PB transposons in Apoidea. The complete PB transposons we discovered are around 2.23–3.52 kb in length and encode transposases of approximately 580 aa, with terminal inverted repeats (TIRs) of about 14 bp and 4 bp (TTAA) target-site duplications. Long TIRs (200 bp, 201 bp, and 493 bp) were also detected in some species of bees. The DDD domains of the three transposon types were more conserved, while the other protein domains were less conserved. Generally, most PB transposons showed low abundance in the genomes of Apoidea. Divergent evolution dynamics of PB were observed in the genomes of Apoidea. PB transposons in some identified species were relatively young, whiles others were older and with some either active or inactive. In addition, multiple invasions of PB were also detected in some genomes of Apoidea. Our findings highlight the contribution of PB transposons to genomic variation in these species and suggest their potential as candidates for future gene transfer tools.
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- 2023
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18. Communal breeding by women is associated with lower investment from husbands
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Qiao-Qiao He, Jun-Wen Rui, Li Zhang, Yi Tao, Jia-Jia Wu, Ruth Mace, and Ting Ji
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Communal breeding ,matrilineal puzzle ,kin selection ,Mosuo ,matrilineal society ,Human evolution ,GN281-289 ,Evolution ,QH359-425 - Abstract
According to Hamilton's rule, matrilineal-biased investment restrains men in matrilineal societies from maximising their inclusive fitness (the ‘matrilineal puzzle'). A recent hypothesis argues that when women breed communally and share household resources, a man should help his sisters' household, rather than his wife's household, as investment to the later but not the former would be diluted by other unrelated members (Wu et al., 2013). According to this hypothesis, a man is less likely to help on his wife's farm when there are more women reproducing in the wife's household, because on average he would be less related to his wife's household. We used a farm-work observational dataset, that we collected in the matrilineal Mosuo in southwest China, to test this hypothesis. As predicted, high levels of communal breeding by women in his wife's households do predict less effort spent by men on their wife's farm, and communal breeding in men's natal households do not affect whether men help on their natal farms. Thus, communal breeding by women dilutes the inclusive fitness benefits men receive from investment to their wife and children, and may drive the evolution of matrilineal-biased investment by men. These results can help solve the ‘matrilineal puzzle'.
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- 2022
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19. Motivational Understanding of MOOC Learning: The Impacts of Technology Fit and Subjective Norms
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Lingfeng Dong, Ting Ji, and Jie Zhang
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MOOCs ,intrinsic motivation ,extrinsic motivation ,subjective norm ,technology fit ,Psychology ,BF1-990 - Abstract
This study examines the mechanisms underlying the relationship between motivation and massive open online course (MOOC) learning intention, and the contextual moderators that affect this mechanism. Drawing on motivational theory and the related literature, this study investigates how motivation affects students’ intention to learn with MOOCs and the related meditation and moderation effects. The findings of our study show that both extrinsic and intrinsic motivations have a significant influence on intention to learn with MOOCs. In addition, the results also suggest that the relationship between extrinsic motivation and intention to learn is mediated by the technology fit perceived by learners but not the relationship between intrinsic motivation and intention to learn. Furthermore, the relationships between both extrinsic and intrinsic motivation and intention to learn are moderated by subjective norms. This study enriches the extant literature on the impact of technology fit and subjective norms on MOOC learning. Few studies have focused on how students can be effectively encouraged to take MOOCs. Given the lack of theoretical and empirical research, this study developed a theoretical model and conducted an empirical study to fill the research gap.
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- 2023
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20. Synergic radiosensitization of sinomenine hydrochloride and radioiodine on human papillary thyroid carcinoma cells
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Aomei Zhao, Jing Zhang, Yan Liu, Xi Jia, Xueni Lu, Qi Wang, Ting Ji, Lulu Yang, Jianjun Xue, Rui Gao, Yan Yu, and Aimin Yang
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Sinomenine hydrochloride ,Iodine-131 ,Papillary thyroid carcinoma cell ,Radiosensitivity ,Apoptosis ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Radioiodine (131I) therapy is an important treatment for thyroid carcinoma. The response to radiotherapy sometimes limited by the development of radioresistance. Sinomenine hydrochloride(SH), was reported as a prospective radiosensitizer. This study was aim to evaluate synergic radiosensitization of SH and 131I on papillary thyroid carcinoma (PTC). We evaluated HTori-3, BCPAP and TPC-1 cells, the cell viability was evaluated by MTT. The experiment was divided into 4 groups: control group, SH (0.8 mM) group, I (131I 14.8 MBq/ml) group and ISH (SH 0.8 mM plus 131I 14.8 MBq/ml) group. Flow cytometry was used to investigate cell cycle phases and cell apoptosis. RT-PCR and western blotting were performed to determine the molecular changes. Compared to control group, SH significantly increased apoptosis and enhanced radiosensitivity of HTori-3 and PTC cells were related to the ratio of Bcl-2 to Bax protein downregulation and Fas, p21, p-ATM, p-Chk1, p-Chk2 and p53 protein expression upregulation in the ISH group (P
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- 2021
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21. Organic Photodetectors with Extended Spectral Response Range Assisted by Plasmonic Hot-Electron Injection
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Aiping Zhai, Chenjie Zhao, Deng Pan, Shilei Zhu, Wenyan Wang, Ting Ji, Guohui Li, Rong Wen, Ye Zhang, Yuying Hao, and Yanxia Cui
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organic photodetector ,nanostructure ,plasmonic resonance ,hot electron ,near infrared ,Chemistry ,QD1-999 - Abstract
Organic photodetectors (OPDs) have aroused intensive attention for signal detection in industrial and scientific applications due to their advantages including low cost, mechanical flexibility, and large-area fabrication. As one of the most common organic light-emitting materials, 8-hydroxyquinolinato aluminum (Alq3) has an absorption wavelength edge of 460 nm. Here, through the introduction of Ag nanoparticles (Ag NPs), the spectral response range of the Alq3-based OPD was successfully extended to the near-infrared range. It was found that introducing Ag NPs can induce rich plasmonic resonances, generating plenty of hot electrons, which could be injected into Alq3 and then be collected. Moreover, as a by-product of introducing Ag NPs, the dark current was suppressed by around two orders of magnitude by forming a Schottky junction on the cathode side. These two effects in combination produced photoelectric signals with significant contrasts at wavelengths beyond the Alq3 absorption band. It was found that the OPD with Ag NPs can stably generate electric signals under illumination by pulsed 850 nm LED, while the output of the reference device included no signal. Our work contributes to the development of low-cost, broadband OPDs for applications in flexible electronics, bio-imaging sensors, etc.
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- 2022
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22. Improving LLMs for Recommendation with Out-Of-Vocabulary Tokens
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Huang, Ting-Ji, Yang, Jia-Qi, Shen, Chunxu, Liu, Kai-Qi, Zhan, De-Chuan, and Ye, Han-Jia
- Subjects
Computer Science - Information Retrieval - Abstract
Characterizing users and items through vector representations is crucial for various tasks in recommender systems. Recent approaches attempt to apply Large Language Models (LLMs) in recommendation through a question and answer format, where real users and items (e.g., Item No.2024) are represented with in-vocabulary tokens (e.g., "item", "20", "24"). However, since LLMs are typically pretrained on natural language tasks, these in-vocabulary tokens lack the expressive power for distinctive users and items, thereby weakening the recommendation ability even after fine-tuning on recommendation tasks. In this paper, we explore how to effectively tokenize users and items in LLM-based recommender systems. We emphasize the role of out-of-vocabulary (OOV) tokens in addition to the in-vocabulary ones and claim the memorization of OOV tokens that capture correlations of users/items as well as diversity of OOV tokens. By clustering the learned representations from historical user-item interactions, we make the representations of user/item combinations share the same OOV tokens if they have similar properties. Furthermore, integrating these OOV tokens into the LLM's vocabulary allows for better distinction between users and items and enhanced capture of user-item relationships during fine-tuning on downstream tasks. Our proposed framework outperforms existing state-of-the-art methods across various downstream recommendation tasks.
- Published
- 2024
23. Genome-Wide Identification of Long Non-coding RNAs in the Gravid Ectoparasite Varroa destructor
- Author
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Zheguang Lin, Yibing Liu, Xiaomei Chen, Cong Han, Wei Wang, Yalu Ke, Xiaoling Su, Yujiao Li, Heng Chen, Hao Xu, Guohong Chen, and Ting Ji
- Subjects
Varroa destructor ,long non-coding RNA ,honey bee ,ectoparasitic mite ,oogenesis ,Genetics ,QH426-470 - Abstract
Long non-coding RNAs (lncRNAs) emerge as critical regulators across a wide variety of biological functions in living organisms. However, to date, no systematic characterization of lncRNAs has been investigated in the ectoparasitic mite Varroa destructor, the most severe biotic threat to honey bees worldwide. Here, we performed an initial genome-wide identification of lncRNAs in V. destructor via high-throughput sequencing technology and reported, for the first time, the transcriptomic landscape of lncRNAs in the devastating parasite. By means of a lncRNA identification pipeline, 6,645 novel lncRNA transcripts, encoded by 3,897 gene loci, were identified, including 2,066 sense lncRNAs, 2,772 lincRNAs, and 1,807 lncNATs. Compared with protein-coding mRNAs, V. destructor lncRNAs are shorter in terms of full length, as well as of the ORF length, contain less exons, and express at lower level. GO term and KEGG pathway enrichment analyses of the lncRNA target genes demonstrated that these predicted lncRNAs may be potentially responsible for the regulatory functions of cellular and biological progresses in the reproductive phase of V. destructor. To our knowledge, this is the first catalog of lncRNA profile in the parasitiformes species, providing a valuable resource for genetic and genomic studies. Understanding the characteristics and features of lncRNAs in V. destructor would promote sustainable parasite control.
- Published
- 2020
- Full Text
- View/download PDF
24. Epigenetic Modifications May Regulate the Activation of the Hypopharyngeal Gland of Honeybees (Apis Mellifera) During Winter
- Author
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Kang Wang, Zhen-guo Liu, Zhe-guang Lin, Ling Yin, Fu-chao Gao, Guo-hong Chen, and Ting Ji
- Subjects
honeybee ,hypopharyngeal glands ,activation ,overwintering ,DNA methylation ,Genetics ,QH426-470 - Abstract
DNA methylation is an epigenetic modification primarily responsible for individual phenotypic variation. This modification has been reported to play an important role in caste, brain plasticity, and body development in honeybees (Apis mellifera). Here, we report the DNA methylation profile of honeybee hypopharyngeal glands, from atrophy in winter to arousal in the following spring, through the use of whole-genome bisulfite sequencing. Consistent with previous studies in other Apis species, we found low methylation levels of the hypopharyngeal gland genome that were mostly of the CG type. Notably, we observed a strong preference for CpG methylation, which was localized in promoters and exon regions. This result further indicated that, in honeybees, DNA methylation may regulate gene expression by mediating alternative splicing, in addition to silencing gene in the promoter regions. After assessment by correlation analysis, we identified seven candidate proteins encoded by differentially methylated genes, including aristaless-related homeobox, forkhead box protein O, headcase, alpha-amylase, neural-cadherin, epidermal growth factor receptor, and aquaporin, which are reported to be involved in cell growth, proliferation, and differentiation. Hypomethylation followed by upregulated expression of these candidates suggested that DNA methylation may play significant roles in the activation of hypopharyngeal glands in overwintering honeybees. Overall, this study elucidates epigenetic modification differences in honeybee hypopharyngeal glands by comparing an inactive winter state to an aroused state in the following spring, which could provide further insight into the evolution of insect sociality and regulatory plasticity.
- Published
- 2020
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25. Photodetector Based on CsPbBr3/Cs4PbBr6 Composite Nanocrystals with High Detectivity
- Author
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Yue Han, Rong Wen, Feng Zhang, Linlin Shi, Wenyan Wang, Ting Ji, Guohui Li, Yuying Hao, Lin Feng, and Yanxia Cui
- Subjects
all-inorganic lead halide perovskite ,CsPbBr3 ,Cs4PbBr6 ,perovskite nanocrystals ,photodetector ,Crystallography ,QD901-999 - Abstract
High-quality, all-inorganic CsPbBr3/Cs4PbBr6 composite perovskite nanocrystals (NCs) were obtained with all-solution-processing at room temperature, and a photodetector (PD) with high detectivity was realized based on CsPbBr3/Cs4PbBr6 NCs. The detectivity (D*) of the proposed PD is 4.24 × 1012 Jones under 532 nm illumination, which is among the highest levels for PDs based on all-inorganic perovskite NCs. In addition, a high linear dynamic range (LDR) of 115 dB under 1 V bias was also realized. Furthermore, the underlying mechanism for the enhanced performance of the proposed PD was discussed. Our work might promote the preparation of high-performance PDs based on dual-phase all-inorganic perovskite nanocrystals.
- Published
- 2021
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26. Diversity and Evolution of pogo and Tc1/mariner Transposons in the Apoidea Genomes
- Author
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Yibing Liu, Wencheng Zong, Mohamed Diaby, Zheguang Lin, Saisai Wang, Bo Gao, Ting Ji, and Chengyi Song
- Subjects
Apoidea ,pogo ,Tc1/mariner ,transposons ,evolution ,Biology (General) ,QH301-705.5 - Abstract
Bees (Apoidea), the largest and most crucial radiation of pollinators, play a vital role in the ecosystem balance. Transposons are widely distributed in nature and are important drivers of species diversity. However, transposons are rarely reported in important pollinators such as bees. Here, we surveyed 37 bee genomesin Apoidea, annotated the pogo and Tc1/mariner transposons in the genome of each species, and performed a phylogenetic analysis and determined their overall distribution. The pogo and Tc1/mariner families showed high diversity and low abundance in the 37 species, and their proportion was significantly higher in solitary bees than in social bees. DD34D/mariner was found to be distributed in almost all species and was found in Apis mellifera, Apis mellifera carnica, Apis mellifera caucasia, and Apis mellifera mellifera, and Euglossa dilemma may still be active. Using horizontal transfer analysis, we found that DD29-30D/Tigger may have experienced horizontal transfer (HT) events. The current study displayed the evolution profiles (including diversity, activity, and abundance) of the pogo and Tc1/mariner transposons across 37 species of Apoidea. Our data revealed their contributions to the genomic variations across these species and facilitated in understanding of the genome evolution of this lineage.
- Published
- 2021
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27. Comparison of Nanohole-Type and Nanopillar-Type Patterned Metallic Electrodes Incorporated in Organic Solar Cells
- Author
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Wenyan Wang, Yanxia Cui, Kin Hung Fung, Ye Zhang, Ting Ji, and Yuying Hao
- Subjects
Surface plasmons ,Absorption ,Organic solar cells ,Resonance ,Gratings ,Materials of engineering and construction. Mechanics of materials ,TA401-492 - Abstract
Abstract Both the nanohole- and nanopillar-type patterned metallic electrodes (PMEs) have been introduced in organic solar cells (OSCs) for improving device performances experimentally, but there is few work addressing the similarities and differences between them. In this theoretical work, we systematically compare the impact of the nanohole- and nanopillar-type PMEs on the performance of an OSC based on hybridized cavity resonances. By optimizing the geometrical parameters of each PME, we obtained an interesting result that the integrated absorption efficiencies in the active layer with different optimized PMEs are almost the same (both are equal to 82.4%), outperforming that of the planar control by 9.9%. Though the absorption enhancement spectra of the two different optimal devices are similar as well, the mechanisms of light trapping at the corresponding enhancement peaks are distinct from each other. In a comprehensive view, the nanopillar-type PME is suggested to be applied in the present system, since its optimal design has a moderate filling ratio, which is much easier to fabricate than its counterpart. This work could contribute to the development of high-efficiency OSCs.
- Published
- 2017
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28. SOX11: friend or foe in tumor prevention and carcinogenesis?
- Author
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Zhi Yang, Shuai Jiang, Chenxi Lu, Ting Ji, Wenwen Yang, Tian Li, Jianjun Lv, Wei Hu, Yang Yang, and Zhenxiao Jin
- Subjects
Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Sex-determining region Y-related high-mobility-group box transcription factor 11 (SOX11) is an essential member of the SOX transcription factors and has been highlighted as an important regulator in embryogenesis. SOX11 studies have only recently shifted focus from its role in embryogenesis and development to its function in disease. In particular, the role of SOX11 in carcinogenesis has become of major interest in the field. SOX11 expression is elevated in a wide variety of tumors. In many cancers, dysfunctional expression of SOX11 has been correlated with increased cancer cell survival, inhibited cell differentiation, and tumor progression through the induction of metastasis and angiogenesis. Nevertheless, in a limited number of malignancies, SOX11 has also been identified to function as a tumor suppressor. Herein, we review the correlation between the expression of SOX11 and tumor behaviors. We also summarize the mechanisms underlying the regulation of SOX11 expression and activity in pathological conditions. In particular, we focus on the pathological processes of cancer targeted by SOX11 and discuss whether SOX11 is protective or detrimental during tumor progression. Moreover, SOX11 is highlighted as a clinical biomarker for the diagnosis and prognosis of various human cancer. The information reviewed here should assist in future experimental designs and emphasize the potential of SOX11 as a therapeutic target for cancer.
- Published
- 2019
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29. Publisher Correction: Dated phylogeny suggests early Neolithic origin of Sino-Tibetan languages
- Author
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Hanzhi Zhang, Ting Ji, Mark Pagel, and Ruth Mace
- Subjects
Medicine ,Science - Abstract
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
- Published
- 2021
- Full Text
- View/download PDF
30. Absorption Enhancement in Thin Organic Solar Cells With MoO3/Ag/MoO3 Transparent Anode Based on Short-Pitched Metallic Grating
- Author
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Ye Zhang, Yanxia Cui, Ting Ji, Yuying Hao, and Furong Zhu
- Subjects
Organic materials ,plasmonics ,subwavelength structures ,gratings. ,Applied optics. Photonics ,TA1501-1820 ,Optics. Light ,QC350-467 - Abstract
The multilayer film consisting of MoO3/Ag/MoO3 (shortened as MAM) is very promising as an alternative of indium-tin oxide (ITO) to work as the transparent anode in organic solar cells (OSCs). In MAM-based thin OSCs, the absorption of light is quite poor. Here, we propose to apply a short-pitched metallic grating into the MAM-based OSC for improving the absorption in its thin active layer. Numerical calculations reveal that the obtained enhancement of integrated absorption in the active layer is more than 500% with respect to the equivalent planar control. The field distributions at the two peaks of the normalized absorption spectrum indicate that propagating surface plasmon polaritons (SPPs), as well as the horizontal metal-insulator-metal (MIM) waveguide mode, play the main role of trapping light into the active material. It is expected that the proposal could contribute to the development of the efficient ITO free thin OSCs.
- Published
- 2017
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31. Management and Prognostic Factors for Thyroid Carcinoma Showing Thymus-Like Elements (CASTLE): A Case Series Study
- Author
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Rui Gao, Xi Jia, Ting Ji, Jinteng Feng, Aimin Yang, and Guangjian Zhang
- Subjects
thyroid tumor ,CASTLE ,surgery ,radiotherapy ,extrathyroidal tumor extension ,lymph node metastasis ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Introduction: This study aims to identify the prognostic factors that influence therapeutic modalities for thyroid carcinoma showing thymus-like elements (CASTLE).Materials and Methods: Reported studies with CASTLE patients published between 2004 and 2018 were retrieved from a cross-database literature search. Three patients treated in our institute were also included as one case series. Standardized data collection was performed; data pertaining to clinical stages, treatment regimens, and survival time were collected and statistically analyzed.Results: Up to 26 case series of CASTLE were selected, including 51 males and 38 females with a median age of 48 years. Follow-up time ranged from 2 to 362 months and the median survival time was 158.03 months. Lymph node metastasis and tumor invasion of adjacent tissue both showed a significant negative effect on survival (p = 0.001 and 0.013, respectively). Radiotherapy significantly improved survival (p = 0.034), while neck dissection significantly prolonged survival only in patients with extrathyroidal extension (p = 0.043).Conclusions: Extrathyroidal infiltration and nodal metastasis are important factors in cancer outcomes. Radiation therapy appears to be important for better outcomes in CASTLE patients, and neck dissection is recommended for patients with extrathyroidal extension.
- Published
- 2018
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32. Uncovering the Changing Gene Expression Profile of Honeybee (Apis mellifera) Worker Larvae Transplanted to Queen Cells
- Author
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Ling Yin, Kang Wang, Lin Niu, Huanxin Zhang, Yuyong Chen, Ting Ji, and Guohong Chen
- Subjects
gene expression ,honeybee ,queen bee ,transcriptomics ,caste differentiation ,Genetics ,QH426-470 - Abstract
The reproductive division of labor, based on caste differentiation in social insects, is of great significance in evolution. Generally, a healthy bee colony consists of a queen and numerous workers and drones. Despite being genetically identical, the queen and workers exhibit striking differences in morphology, behavior, and lifespan. The fertilized eggs and larvae selectively develop into queen and worker bees depending on the local nutrition and environment. Bee worker larvae that are transplanted within 3 days of age to queen cells of a bee colony can develop into queens with mature ovaries. This phenomenon is important to understand the regulatory mechanisms of caste differentiation. In this study, we transplanted worker larvae (Apis mellifera) at the age of 1 (L1), 2 (L2), and 3 days (L3) into queen cells until the age of 4 days. Subsequently, genetic changes in these larvae were evaluated. The results revealed that the number of differentially expressed genes (DEGs) in L1 vs. L3 was more than that in L1 vs. L2. Furthermore, many of the genes that were downregulated are mostly involved in metabolism, body development, reproductive ability, and longevity, indicating that these functions decreased with the age of transplantation of the larvae. Moreover, these functions may be critical for worker larvae to undergo the developmental path to become queens. We also found that the DEGs of L1 vs. L2 and L1 vs. L3 were enriched in the MAPK, FoxO, mTOR, Wnt, TGF-beta Hedgehog Toll and Imd, and Hippo signaling pathways. Gene ontology analysis indicated that some genes are simultaneously involved in different biological pathways; through these genes, the pathways formed a mutual regulatory network. Casein kinase 1 (CK 1) was predicted to participate in the FoxO, Wnt, Hedgehog, and Hippo signaling pathways. The results suggest that these pathways cross talked through the network to modify the development of larvae and that CK 1 is an important liaison. The results provide valuable information regarding the regulatory mechanism of environmental factors affecting queen development, thus, amplifying the understanding of caste differentiation in bees.
- Published
- 2018
- Full Text
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33. Transcriptome Analysis of Newly Emerged Honeybees Exposure to Sublethal Carbendazim During Larval Stage
- Author
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Kang Wang, Rong-Li Fan, Wen-Na Ji, Wen-Wen Zhang, Xiao-Mei Chen, Shuang Wang, Ling Yin, Fu-Chao Gao, Guo-Hong Chen, and Ting Ji
- Subjects
honeybee ,sublethal dose effects ,carbendazim ,brain development ,transcriptome ,Genetics ,QH426-470 - Abstract
There are increasing concerns regarding the impact of agrochemical pesticides on non-target organisms. Pesticides could cause honeybee abnormal development in response to neurotoxins such as neonicotinoid. However, knowledge of carbendazim, a widespread fungicide in beekeeping practice, influencing on honeybee (Apis mellifera L.) brain development is lacking. Large-scale transcriptome approaches were applied to determine the changes in global gene expression in the brains of newly emerged honeybees after carbendazim exposure during the larval stage. To further understand the effects of carbendazim on the brain development of honeybees, the functions of differentially expressed genes were compared between the treatment and control groups. We found that neuroregulatory genes were down-regulated after carbendazim exposure, which suggest the neurotoxic effects of this fungicide on honeybee nervous system. Carbendazim exposure also altered the expression of genes implicated in metabolism, transport, sensor, and hormone. Notably, larvae in the carbendazim-treated group observed longer time to shift into the dormant pupal state than the control group. Moreover, a low juvenile hormone and high ecdysone titers were found in the treatment group compared to control group. The data is the first report of neurotoxic effects on honeybee caused by carbendazim, and the sublethal carbendazim may disturb honeybee development and is a potential chemical threating the honeybee colonies.
- Published
- 2018
- Full Text
- View/download PDF
34. Efficient Light Absorption in Organic Solar Cells Based on Two-Dimensional Arrayed Dielectric Nanospheres
- Author
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Ming Chen, Ye Zhang, Wenyan Wang, Yuying Hao, Yanxia Cui, Ting Ji, and Furong Zhu
- Subjects
Light trapping ,organic solar cells ,plasmonic modes ,photonic modes ,2-D arrayed dielectric nanospheres. ,Applied optics. Photonics ,TA1501-1820 ,Optics. Light ,QC350-467 - Abstract
We have designed a patterned OSC based on 2-D arrayed dielectric nanospheres loaded on the indium tin oxide anode with other functional layers conformally embossed in the same profile as the nanosphere array. This design shows an integrated light absorption efficiency of 76.6% in the PSBTBT:PC71BM active layer over the wavelength range from 400 to 900 nm at normal incidence, outperforming the structurally identical planar control cell by 21.6%. Detailed investigations reveal that the excitation of photonic modes including the hybridization of cavity modes and Bloch modes, plasmonic modes, and their mutual coupling are responsible for the observed broadband enhancement in light absorption. Among them, the photonic modes are confirmed to be main contributor at most of the absorption band of PSBTBT:PC71BM, whereas at the absorption band edge of PSBTBT:PC71BM, the plasmonic resonance joins with the photonic resonances, collaboratively producing an enhancement factor as high as 110%. Moreover, the broadband absorption enhancement of our proposal is insensitive to the incident angle, favoring the practical application. This work provides a low cost and efficient route for achieving high-performance OSCs in experiment.
- Published
- 2016
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- View/download PDF
35. Efficient Light Trapping in Organic Solar Cell Using a Short-Pitched Hexagonal Array of Metallic Nanocylinders
- Author
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Wenyan Wang, Ye Zhang, Ming Chen, Yuying Hao, Ting Ji, Furong Zhu, and Yanxia Cui
- Subjects
Organic solar cells ,absorption enhancement ,gratings ,surface plasmon. ,Applied optics. Photonics ,TA1501-1820 ,Optics. Light ,QC350-467 - Abstract
Plasmonic nanostructures have a great potential for enhancing light absorption of organic solar cells (OSCs). Our previous work has demonstrated that light absorption for OSCs with thin active layer can be significantly increased with a 1-D short-pitched metal grating, but the absorption enhancement is sensitive to the polarization of light and vanishes when the active layer is thicker than 60 nm. In this work, we extend the grating into 2-D space, specifically, with metallic nanocylinders packed in a hexagonal array embossed at the silver cathode. Numerical calculations indicate that the proposed OSC not only possesses polarization insensitivity but outperforms the corresponding equivalent planar device as well when the thickness of the active layer changes over a wide range from 40 to 120 nm. The absorption enhancement factor increases with the decrease of the active layer thickness, reaching 81.5% when the active layer is 40-nm thick. The evident enhancement in absorption is mainly due to the excitation of the strong dipole-like surface plasmon resonance, as well as their mutual coupling between neighboring nanocylinders. The present work could provide a promising route for the development of high-efficiency OSCs.
- Published
- 2016
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36. Kinship underlies costly cooperation in Mosuo villages
- Author
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Matthew Gwynfryn Thomas, Ting Ji, Jiajia Wu, QiaoQiao He, Yi Tao, and Ruth Mace
- Subjects
reciprocal altruism ,farmers ,kin selection ,china ,Science - Abstract
The relative importance of social evolution theories such as kin selection, direct reciprocity and need-based transfers in explaining real-world cooperation is the source of much debate. Previous field studies of cooperation in human communities have revealed variability in the extent to which each of these theories explains human sociality in different contexts. We conducted multivariate social network analyses predicting costly cooperation—labouring on another household's farm—in 128 082 dyads of Mosuo farming households in southwest China. Through information-theoretic model selection, we tested the roles played by genealogical relatedness, affinal relationships (including reproductive partners), reciprocity, relative need, wealth, household size, spatial proximity and gift-giving in an economic game. The best-fitting model included all factors, along with interactions between relatedness and (i) reciprocity, (ii) need, (iii) the presence of own children in another household and (iv) proximity. Our results show how a real-world form of cooperation was driven by kinship. Households tended to help kin in need (but not needy non-kin) and travel further to help spatially distant relatives. Households were more likely to establish reciprocal relationships with distant relatives and non-kin but closer kin cooperated regardless of reciprocity. These patterns of kin-driven cooperation show the importance of inclusive fitness in understanding human social behaviour.
- Published
- 2018
- Full Text
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37. Model Spider: Learning to Rank Pre-Trained Models Efficiently
- Author
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Zhang, Yi-Kai, Huang, Ting-Ji, Ding, Yao-Xiang, Zhan, De-Chuan, and Ye, Han-Jia
- Subjects
Computer Science - Machine Learning - Abstract
Figuring out which Pre-Trained Model (PTM) from a model zoo fits the target task is essential to take advantage of plentiful model resources. With the availability of numerous heterogeneous PTMs from diverse fields, efficiently selecting the most suitable PTM is challenging due to the time-consuming costs of carrying out forward or backward passes over all PTMs. In this paper, we propose Model Spider, which tokenizes both PTMs and tasks by summarizing their characteristics into vectors to enable efficient PTM selection. By leveraging the approximated performance of PTMs on a separate set of training tasks, Model Spider learns to construct tokens and measure the fitness score between a model-task pair via their tokens. The ability to rank relevant PTMs higher than others generalizes to new tasks. With the top-ranked PTM candidates, we further learn to enrich task tokens with their PTM-specific semantics to re-rank the PTMs for better selection. Model Spider balances efficiency and selection ability, making PTM selection like a spider preying on a web. Model Spider demonstrates promising performance in various configurations of model zoos.
- Published
- 2023
38. Research Progress in Organic Photomultiplication Photodetectors
- Author
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Linlin Shi, Qiangbing Liang, Wenyan Wang, Ye Zhang, Guohui Li, Ting Ji, Yuying Hao, and Yanxia Cui
- Subjects
photodetector ,organic ,photomultiplication ,tunneling ,external quantum efficiency ,Chemistry ,QD1-999 - Abstract
Organic photomultiplication photodetectors have attracted considerable research interest due to their extremely high external quantum efficiency and corresponding high detectivity. Significant progress has been made in the aspects of their structural design and performance improvement in the past few years. There are two types of organic photomultiplication photodetectors, which are made of organic small molecular compounds and polymers. In this paper, the research progress in each type of organic photomultiplication photodetectors based on the trap assisted carrier tunneling effect is reviewed in detail. In addition, other mechanisms for the photomultiplication processes in organic devices are introduced. Finally, the paper is summarized and the prospects of future research into organic photomultiplication photodetectors are discussed.
- Published
- 2018
- Full Text
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39. Kinship as a frequency dependent strategy
- Author
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Ting Ji, Xiu-Deng Zheng, Qiao-Qiao He, Jia-Jia Wu, Ruth Mace, and Yi Tao
- Subjects
kinship ,post-marital residence ,frequency-dependent selection ,Science - Abstract
Humans divide themselves up into separate cultures, which is a unique and ubiquitous characteristic of our species. Kinship norms are one of the defining features of such societies. Here we show how norms of marital residence can evolve as a frequency-dependent strategy, using real-world cases from southwestern China and an evolutionary game model. The process of kinship change has occurred in the past and is also occurring now in southwestern China. Our data and models show how transitions between residence types can occur both as response to changing costs and benefits of co-residence with kin, and also due to the initial frequency of the strategies adopted by others in the population: patrilocal societies can become matrilocal, and neolocal societies can become duolocal. This illustrates how frequency-dependent selection plays a role both in the maintenance of group-level cultural diversity and in cultural extinction.
- Published
- 2016
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40. Feasibility Analysis of Pickering Emulsion as Fracturing Fluid in Shale Gas Reservoir
- Author
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Zhu, Tong-yu, Gong, Ru-xiang, Ding, Ting-ji, Zhang, Xue-na, Zhao, Han, Zheng, Yu-fei, Wu, Wei, Series Editor, and Lin, Jia'en, editor
- Published
- 2024
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41. Long intergenic non-coding RNAs (LincRNAs) identified by RNA-seq in breast cancer.
- Author
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Xianfeng Ding, Limin Zhu, Ting Ji, Xiping Zhang, Fengmei Wang, Shaoju Gan, Ming Zhao, and Hongjian Yang
- Subjects
Medicine ,Science - Abstract
In an attempt to find the correlation of aberrant expression of long intergenic noncoding RNAs (lincRNAs) with cancer, twenty-five samples of breast cancer tissue and respective adjacent normal tissue were studied for the expression of lincRNAs by RNA-seq. Among the 538 lincRNAs studied, 124 lincRNAs were exclusively expressed in cancer adjacent tissues and 62 lincRNAs were exclusively expressed in the cancer tissues. Furthermore, the expression of 134 lincRNAs was higher while 272 lower in breast cancer tissue compared with adjacent tissue. The expression of four selected lincRNAs (BC2, BC4, BC5, and BC8) was validated by semi-quantitative and real-time PCR. It was revealed that expression of lincRNA-BC5 was positively correlated with patients' age, pathological stage, and progesterone receptor concentration, while lincRNA-BC8 was negatively correlated with progesterone receptor expression. Higher expression of lincRNA-BC4 was seen in advanced breast cancer grade. LincRNA-BC2 showed no specific changes in the pathological features studied. Interactions between selected lincRNAs and breast cancer associated proteins were highly suggested by RPIseq based on the specific secondary structure. The results demonstrated that this group of lincRNAs was aberrantly expressed in breast cancer. They might play important roles in the function of oncogenes or tumor suppressors affecting the development and progression of breast cancer.
- Published
- 2014
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42. Potentials-attract or likes-attract in human mate choice in China.
- Author
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Qiao-Qiao He, Zhen Zhang, Jian-Xin Zhang, Zhi-Guo Wang, Ying Tu, Ting Ji, and Yi Tao
- Subjects
Medicine ,Science - Abstract
To explain how individuals' self-perceived long-term mate value influences their mate preference and mate choice, two hypotheses have been presented, which are "potentials-attract" and "likes-attract", respectively. The potentials-attract means that people choose mates matched with their sex-specific traits indicating reproductive potentials; and the likes-attract means that people choose mates matched with their own conditions. However, the debate about these two hypotheses still remains unsolved. In this paper, we tested these two hypotheses using a human's actual mate choice data from a Chinese online dating system (called the Baihe website), where 27,183 users of Baihe website are included, in which there are 590 paired couples (1180 individuals) who met each other via the website. Our main results show that not only the relationship between individuals' own attributes and their self-stated mate preference but also that between individuals' own attributes and their actual mate choice are more consistent with the likes-attract hypothesis, i.e., people tend to choose mates who are similar to themselves in a variety of attributes.
- Published
- 2013
- Full Text
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43. Transcriptome sequencing analysis reveals the regulation of the hypopharyngeal glands in the honey bee, Apis mellifera carnica Pollmann.
- Author
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Zhenguo Liu, Ting Ji, Ling Yin, Jie Shen, Fang Shen, and Guohong Chen
- Subjects
Medicine ,Science - Abstract
Transcriptome sequencing has become the main methodology for analyzing the relationship between genes and characteristics of interests, particularly those associated with diseases and economic traits. Because of its role of functional food for humans, commercial royal jelly (RJ) and its production are major research focuses in the field of apiculture. Multiple lines of evidence have demonstrated that many factors affect RJ output by activating or inhibiting various target genes and signaling pathways. Available coding sequences from the Honey Bee Genome Sequencing Consortium have permitted a pathway-based approach for investigating the development of the hypopharyngeal glands (HGs). In the present study, 3573941, 3562730, 3551541, 3524453, and 3615558 clean reads were obtained from the HGs of five full-sister honey bee samples using Solexa RNA sequencing technology. These reads were then assembled into 18378, 17785, 17065, 17105, and 17995 unigenes, respectively, and aligned to the DFCI Honey Bee Gene Index database. The differentially expressed genes (DEGs) data were also correlated with detailed morphological data for HGs acini.
- Published
- 2013
- Full Text
- View/download PDF
44. Evolutionary dynamics of fearfulness and boldness: a stochastic simulation model.
- Author
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Nan Lu, Ting Ji, Jia-Hua Zhang, Yue-Hua Sun, and Yi Tao
- Subjects
Medicine ,Science - Abstract
A stochastic simulation model is investigated for the evolution of anti-predator behavior in birds. The main goal is to reveal the effects of population size, predation threats, and energy lost per escape on the evolutionary dynamics of fearfulness and boldness. Two pure strategies, fearfulness and boldness, are assumed to have different responses for the predator attacks and nonlethal disturbance. On the other hand, the co-existence mechanism of fearfulness and boldness is also considered. For the effects of total population size, predation threats, and energy lost per escape, our main results show that: (i) the fearful (bold) individuals will be favored in a small (large) population, i.e. in a small (large) population, the fearfulness (boldness) can be considered to be an ESS; (ii) in a population with moderate size, fearfulness would be favored under moderate predator attacks; and (iii) although the total population size is the most important factor for the evolutionary dynamics of both fearful and bold individuals, the small energy lost per escape enables the fearful individuals to have the ability to win the advantage even in a relatively large population. Finally, we show also that the co-existence of fearful and bold individuals is possible when the competitive interactions between individuals are introduced.
- Published
- 2012
- Full Text
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45. Deterioration analysis and expansion behavior prediction of electric arc furnace slag as fine aggregate in mortar
- Author
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Xue, Jia-Chen, Wang, Wei-Chien, Wu, Chung-Hao, Hong, Ting-Ji, Chen, Tzu-Hsuan, and Huang, Chia-Yun
- Published
- 2024
- Full Text
- View/download PDF
46. Improved Dynamic Spatial-Temporal Attention Network for Early Anticipation of Traffic Accidents.
- Author
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Chao Yi, Ting-Ji Huang, Han-Jia Ye, and De-Chuan Zhan
- Published
- 2023
- Full Text
- View/download PDF
47. Change Point Detection via Synthetic Signals.
- Author
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Ting-Ji Huang, Qi-Le Zhou, Han-Jia Ye, and De-Chuan Zhan
- Published
- 2023
- Full Text
- View/download PDF
48. Improving LLMs for Recommendation with Out-Of-Vocabulary Tokens.
- Author
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Ting-Ji Huang, Jia-Qi Yang, Chunxu Shen, Kai-Qi Liu, De-Chuan Zhan, and Han-Jia Ye
- Published
- 2024
- Full Text
- View/download PDF
49. A weighted-link graph neural network for lung cancer knowledge classification.
- Author
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Ching-Hsue Cheng 0001 and Zheng-Ting Ji
- Published
- 2023
- Full Text
- View/download PDF
50. Model Spider: Learning to Rank Pre-Trained Models Efficiently.
- Author
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Yi-Kai Zhang, Ting-Ji Huang, Yao-Xiang Ding 0001, De-Chuan Zhan, and Han-Jia Ye
- Published
- 2023
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