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127 results on '"Yan, Yuzhong"'

7. Hierarchical Transfer Convolutional Neural Networks for Image Classification

Author

Dong, Xishuang, Wu, Hsiang-Huang, Yan, Yuzhong, and Qian, Lijun

Subjects
Computer Science - Computer Vision and Pattern Recognition, Computer Science - Learning, Statistics - Machine Learning
Abstract

In this paper, we address the issue of how to enhance the generalization performance of convolutional neural networks (CNN) in the early learning stage for image classification. This is motivated by real-time applications that require the generalization performance of CNN to be satisfactory within limited training time. In order to achieve this, a novel hierarchical transfer CNN framework is proposed. It consists of a group of shallow CNNs and a cloud CNN, where the shallow CNNs are trained firstly and then the first layers of the trained shallow CNNs are used to initialize the first layer of the cloud CNN. This method will boost the generalization performance of the cloud CNN significantly, especially during the early stage of training. Experiments using CIFAR-10 and ImageNet datasets are performed to examine the proposed method. Results demonstrate the improvement of testing accuracy is 12% on average and as much as 20% for the CIFAR-10 case while 5% testing accuracy improvement for the ImageNet case during the early stage of learning. It is also shown that universal improvements of testing accuracy are obtained across different settings of dropout and number of shallow CNNs.

Published
2018

8. Inference Performance Comparison of Convolutional Neural Networks on Edge Devices

Author

Reza, Sheikh Rufsan, Yan, Yuzhong, Dong, Xishuang, Qian, Lijun, Akan, Ozgur, Editorial Board Member, Bellavista, Paolo, Editorial Board Member, Cao, Jiannong, Editorial Board Member, Coulson, Geoffrey, Editorial Board Member, Dressler, Falko, Editorial Board Member, Ferrari, Domenico, Editorial Board Member, Gerla, Mario, Editorial Board Member, Kobayashi, Hisashi, Editorial Board Member, Palazzo, Sergio, Editorial Board Member, Sahni, Sartaj, Editorial Board Member, Shen, Xuemin (Sherman), Editorial Board Member, Stan, Mircea, Editorial Board Member, Jia, Xiaohua, Editorial Board Member, Zomaya, Albert Y., Editorial Board Member, Paiva, Sara, editor, Lopes, Sérgio Ivan, editor, Zitouni, Rafik, editor, Gupta, Nishu, editor, Lopes, Sérgio F., editor, and Yonezawa, Takuro, editor

Published
2021
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35. Coronavirus Disease 2019 (COVID-19) Learning Online: A Flipped Classroom Based on Micro-Learning Combined with Case-Based Learning in Undergraduate Medical Students

Author

Qian,Qiaohui, Yan,Yuzhong, Xue,Fei, Lin,Jie, Zhang,Fengjiao, Zhao,Jiangxia, Qian,Qiaohui, Yan,Yuzhong, Xue,Fei, Lin,Jie, Zhang,Fengjiao, and Zhao,Jiangxia

Abstract

Qiaohui Qian, 1,* Yuzhong Yan, 2,* Fei Xue, 1 Jie Lin, 2 Fengjiao Zhang, 1 Jiangxia Zhao 1 1Teaching & Training Department, Zhoupu Hospital, Shanghai University of Medicine and Health Sciences, Shanghai, People’s Republic of China; 2Department of Research, Zhoupu Hospital, Shanghai University of Medicine and Health Sciences, Shanghai, People’s Republic of China*These authors contributed equally to this workCorrespondence: Jiangxia ZhaoTeaching & Training Department, Zhoupu Hospital, Shanghai University of Medicine and Health Sciences, 1500 Zhouyuan Road, Pudong New District, Shanghai, 201318, People’s Republic of ChinaTel +86-18917684029Email 18917684029@189.cnBackground: During the coronavirus disease 2019 (COVID-19) pandemic, medical colleges in China had to use online teaching. This study explored the effect of COVID-19 knowledge learning online in a flipped classroom based on micro-learning combined with case-based learning (CBL).Methods: There were 74 undergraduate medical students who were randomly grouped to an observation group and a control group with 37 participants in each virtual classroom on the Network Teaching Platform. Students learning in the control group utilized face-to-face lecture with PowerPoint pre-provided, while students learning in the observation group were conducted in a flipped classroom based on micro-learning combined with CBL. We compared the effect of both formats of COVID-19 knowledge learning online and the impact on clinical practice attitude in two groups.Results: All 74 students (100%) responded pretest, posttest and retention test, and completed the questionnaire online. Both formats significantly improved COVID-19 knowledge acquisition at the conclusion of online COVID-19 curriculum. Students’ knowledge test scores including total score and scores of five knowledge dimensions of COVID-19 were significantly higher in the observation group than those in the control group (

Published
2021

36. Serum C-Reactive Protein in Patients with Deficit Schizophrenia and the Relationship with Cognitive Function

Author

Pan, Li-Hong, Qian, Ming, Qu, Weihua, Tang, Qin, and Yan, Yuzhong

Subjects
schizophrenia, Neuropsychiatric Disease and Treatment, inflammation, deficit schizophrenia, Original Research, C-reactive protein, cognitive impairment
Abstract

Li-Hong Pan,1,* Ming Qian,1,* Weihua Qu,2 Qin Tang,2 Yuzhong Yan3 1Department of Psychiatry, Shanghai Pudong Nanhui Mental Health Center, Shanghai, People’s Republic of China; 2Department of Clinical Laboratory, Shanghai Prison General Hospital, Shanghai, People’s Republic of China; 3Department of Research, Shanghai University of Medicine and Health Science Affiliated Zhoupu Hospital, Shanghai, People’s Republic of China*These authors contributed equally to this workCorrespondence: Yuzhong Yan Email jykwsw@126.comBackground: Serum levels of C-reactive protein (CRP) were measured in patients with deficit schizophrenia (DS) to confirm the association between CRP level and cognitive performance and to determine whether CRP was a new biological indicator with the potential clinical applications in DS patients.Methods: Three independent samples [41 DS and 50 non-deficit schizophrenia (NDS) and 30 sex- and age-matched healthy controls (HCs)] were recruited in our study. Serum CRP levels were measured by immunofluorescence. The Positive and Negative Syndrome Scale (PANSS) and alternative forms of the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) were also assessed. And the relationships between serum CRP levels and both PANSS and RBANS scores were finally analyzed.Results: The results of serum CRP level were showed significantly different among the three groups and increased from the HCs to NDS patients to DS patients. There were also significant differences in the cognitive subdomain analyses among the three groups. Serum CRP levels were found positively correlated with total and negative PANSS scores, and showed negatively correlated with overall cognitive test scores in the DS samples.Conclusion: Serum C-reactive protein levels and their association with cognitive performance were different between deficit schizophrenia and non-deficit schizophrenia samples, and higher serum CRP level was associated with worse cognitive performance in the DS patients. The results indicated that CRP could be a potential biomarker, and DS could be a distinct subset of schizophrenia.Keywords: schizophrenia, deficit schizophrenia, C-reactive protein, inflammation, cognitive impairment

Published
2020

37. Serum C-Reactive Protein in Patients with Deficit Schizophrenia and the Relationship with Cognitive Function

Author

Pan,Li-Hong, Qian,Ming, Qu,Weihua, Tang,Qin, Yan,Yuzhong, Pan,Li-Hong, Qian,Ming, Qu,Weihua, Tang,Qin, and Yan,Yuzhong

Abstract

Li-Hong Pan,1,* Ming Qian,1,* Weihua Qu,2 Qin Tang,2 Yuzhong Yan3 1Department of Psychiatry, Shanghai Pudong Nanhui Mental Health Center, Shanghai, People’s Republic of China; 2Department of Clinical Laboratory, Shanghai Prison General Hospital, Shanghai, People’s Republic of China; 3Department of Research, Shanghai University of Medicine and Health Science Affiliated Zhoupu Hospital, Shanghai, People’s Republic of China*These authors contributed equally to this workCorrespondence: Yuzhong Yan Email jykwsw@126.comBackground: Serum levels of C-reactive protein (CRP) were measured in patients with deficit schizophrenia (DS) to confirm the association between CRP level and cognitive performance and to determine whether CRP was a new biological indicator with the potential clinical applications in DS patients.Methods: Three independent samples [41 DS and 50 non-deficit schizophrenia (NDS) and 30 sex- and age-matched healthy controls (HCs)] were recruited in our study. Serum CRP levels were measured by immunofluorescence. The Positive and Negative Syndrome Scale (PANSS) and alternative forms of the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) were also assessed. And the relationships between serum CRP levels and both PANSS and RBANS scores were finally analyzed.Results: The results of serum CRP level were showed significantly different among the three groups and increased from the HCs to NDS patients to DS patients. There were also significant differences in the cognitive subdomain analyses among the three groups. Serum CRP levels were found positively correlated with total and negative PANSS scores, and showed negatively correlated with overall cognitive test scores in the DS samples.Conclusion: Serum C-reactive protein levels and their association with cognitive performance were different between deficit schizophrenia and non-deficit schizophrenia samples, and higher serum CRP level was associated with worse c

Published
2020

45. A Delphi Study to Construct an Index of Practice for Community Nurses Providing Transitional Home Care for Patients with Chronic Diseases

Author

Ge, Jinjin, Zhao, Chunyan, Lu, Jiayun, Zhang, Xian, Zhou, Xiaoling, Wang, Rongxi, Jiang, Changying, Sun, Wei, Ju, Shuqin, wang, Fulan, Liu, Weiqun, and Yan, Yuzhong

Abstract

Community nurses play a key role in providing continuous home care for patients with chronic diseases. However, a perfect system of responsibilities and requirements has not yet been formed, and nurses cannot provide high-quality nursing services for home-based patients. We attempted to construct an index of the scope of practice for community nurses providing home-based transitional care for patients with chronic diseases and to guide nurses in playing an active role in transitional care work. From March to May 2023, 14 representative community nurses from the Shanghai Community Health Service Center were selected for group interviews and 2 rounds of Delphi consultation. A total of 14 valid questionnaires were collected. The authority coefficients were 0.94 and 0.93, and the Kendall coefficients were 0.56 and 0.59 for the 2 rounds of expert consultation (P< .05). Finally, an index system, including 6 primary indices (transitional caring provider, patient self-management facilitator, community group intervention organizer, home caregiver supporter, family physician team collaborator and supervisor of home medical equipment use, and medical waste disposal) was constructed for community nurses involved in providing home-based transitional care for patients with chronic diseases. The weight values of the 6 indices were 0.19, 0.17, 0.21, 0.13, 0.14 and 0.16, respectively (CR = 0.035, and the consistency test was passed), and 16 secondary indicators and 42 tertiary indicators were identified. In this Delphi study, an index system that can be used to determine community nurses’ roles in providing home-based transitional and continuous care for patients with chronic diseases was successfully established. The index system is considered reliable and easy to use and will provide a meaningful reference for community nurses and policy-makers.

Published
2024
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50. Bcl-xL/Bak interaction and regulation by miRNA let-7b in the intrinsic apoptotic pathway of stored platelets.

Author

Yan, Yuzhong, Zhang, Qi, Zhu, Xinfang, Han, Jia, Xia, Rong, and Xie, Rufeng

Subjects
*MICRORNA, *GENE expression
Abstract

Bcl-2 family proteins play key roles in the intrinsic apoptosis pathway in platelets, with both pro- and antiapoptotic protein expressions regulating survival during ex vivo storage. We detected a significant decrease in antiapoptotic Bcl-xL and increase in proapoptotic Bak expression on the third day of storage and as a result the ratio of Bak:Bcl-xL also decreased. Moreover, we identified an interaction between Bcl-xL and Bak. These shifts corresponded with activation of the apoptotic pathway, suggesting these proteins might play an important role in platelet survival. We then performed bioinformatic analysis to gain insight into protein expression regulation during storage. This identified a potential binding site of the microRNA (miRNA) let-7b in the 3ʹ-UTR of the Bcl-xL gene, which we confirmed by a dual-luciferase reporter assay. We also determined that let-7b was upregulated during platelet storage, and let-7b transfection influenced Bcl-xL and Bak protein, but not mRNA, expression. Together, these data suggest that only posttranscriptional mechanisms are available for regulating gene expression in anucleate platelets. [ABSTRACT FROM AUTHOR]

Published
2019
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