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Image Tampering Detection Using No-Reference Image Quality Metrics

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Journal of Harbin Institute of Technology(New Series) 2014年第6期21卷 51-56页

作者： Ying Li Bo Wang Xiang-Wei Kong yan-qing guo School of Information and Communication Engineering Dalian University of Technology

In this paper,a new approach is proposed to determine whether the content of an image is authentic or modified with a focus on detecting complex image *** image tampering without any prior information of the original image is a challenging problem since unknown diverse manipulations may have different characteristics and so do various formats of *** principle is that image processing,no matter how complex,may affect image quality,so image quality metrics can be used to distinguish tampered *** particular,based on the alteration of image quality in modified blocks,the proposed method can locate the tampered *** to four types of effective no-reference image quality metrics,we obtain 13 features to present an *** experimental results show that the proposed method is very promising on detecting image tampering and locating the locally tampered areas especially in realistic scenarios.

关键词： image forensics tampering detection no-reference image quality metrics tampering localization

Dynamic foraging strategy adaptation to heterogeneous environments contributes to social aggregation in snub-nosed monkeys

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Zoological Research 2024年第1期45卷 39-54页

作者： Lan Zhao Sheng-Nan Ji Xiao-Bing Du Jia-Hui Liu Bo-Lun Zhang Pei-Hua Li Yi-Jun yang Bao-guo Li yan-qing guo Xiao-Guang Qi College of Life Sciences Northwest UniversityXi’anShaanxi 710069China Chengdu Institute of Biology Chinese Academy of SciencesChengduSichuan 610041China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China

The dynamics of animal social structures are heavily influenced by environmental patterns of competition and *** folivorous colobine primates,prevailing theories suggest that larger group sizes should be favored in rainforests with a year-round abundance of food,thereby reducing feeding ***,paradoxically,larger groups are frequently found in high-altitude or high-latitude montane ecosystems characterized by a seasonal scarcity of *** contradiction is posited to arise from cooperative benefits in heterogeneous *** investigate this hypothesis,we carried out a six-year field study on two neighboring groups of golden snub-nosed monkey(Rhinopithecus roxellana),a species representing the northernmost distribution of colobine *** showed that the groups adjusted their movement and habitat selection in response to fluctuating climates and spatiotemporal variability of resources,indicative of a dynamic foraging ***,during the cold,resource-scarce conditions in winter,the large group occupied food-rich habitats but did not exhibit significantly longer daily travel distances than the smaller neighboring ***,we compiled an eco-behavioral dataset of 52 colobine species to explore their evolutionary *** of this dataset suggested that the increase in group size may have evolved via home range expansion in response to the cold and heterogeneous climates found at higher altitudes or ***,we developed a multi-benefits framework to interpret the formation of larger groups by integrating environmental *** cold and diverse environments,even smaller groups require larger home ranges to meet their dynamic survival *** spatiotemporal distribution of high-quality resources within these expanded home ranges facilitates more frequent interactions between groups,thereby encouraging social aggregation into larger *** process enhances the benefits of collabor

关键词： Social evolution Folivore paradox MLS Rhinopithecus roxellana Multi-benefits framework

Channel activity of mirror-image M2 proton channel of influenza A virus is blocked by achiral or chiral inhibitors

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Protein & Cell 2019年第3期10卷 211-216页

作者： qing-yan guo Long-Hua Zhang Chao Zuo Dong-Liang Huang Zhipeng A.Wang Ji-Shen Zheng Chang-Lin Tian School of Life Sciences University of Science and Technology of ChinaHefei 230027China

Dear Editor,It is known that most of lives on the earth compose of homochiral molecules of L-amino acids and D-ribose nucleic ***,little is known why and how the life's chirality in such a *** on an artificial mirror-image life could strengthen our understanding of the question about the origin of life on the Earth and even elsewhere in the *** studies on mirror-image life would also have a plenty of vast application prospects in materials,energy and pharmaceutical sciences(Bohannon,2010).

关键词： Editor chirality question

A 65-year-old man with infratentorial diffuse encephalopathy and hydrocephalus

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Chinese Medical Journal 2011年第11期124卷 1758-1760页

作者： FENG yan-qing guo Ning LIU Jun-xiu LAI Rong CHEN Xi HUANG Fan Department of Neurology First Affiliated Hospital of Sun Yat-senUniversity Guangzhou Guangdong 510080 China

Tuberculous encephalopathy （TBE） is an important diagnosis in countries with a high prevalence of tuberculosis. TBE is a life-threatening condition but rarely reported in the modern literature. We reported a case of a man with extensive parenchymal lesions involving the brainstem and right cerebellar hemisphere that resolved after treatment. The clinical, laboratory and pathological features of this case are highlighted and the pathogenesis is discussed.

关键词： tuberculous encephalopathy hydrocephalus

Resistance to apoptosis should not be taken as a hallmark of cancer

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Chinese Journal of Cancer 2014年第2期33卷 47-50页

作者： Rui-An Wang Zeng-Shan Li qing-guo yan Xiu-Wu Bian yan-qing Ding Xiang Du Bao-Cun Sun Yun-Tian Sun Xiang-Hong Zhang Department of Pathology The Fourth Military Medical University Department of Pathology The Third Military Medical University Department of Pathology Nanfang Medical University Department of Pathology Fudan University Department of Pathology Tianjin Medical University Department of Pathology Cancer Hospital of Chinese Academy for Medical Sciences Department of Pathology Hebei Medical University

In the research community, resistance to apoptosis is often considered a hallmark of cancer. However, pathologists who diagnose cancer via microscope often see the opposite. Indeed, increased apoptosis and mitosis are usually observed simultaneously in cancerous lesions. Studies have shown that increased apoptosis is associated with cancer aggressiveness and poor clinical outcome. Furthermore, overexpression of Bcl-2, an antiapoptotic protein, is linked with better survival of cancer patients. Conversely, Bax, CD95, Caspase-3, and other apoptosis-inducing proteins have been found to promote carcinogenesis. This notion of the role of apoptosis in cancer is not new; cancer cells were found to be short-lived 88 years ago. Given these observations, resistance to apoptosis should not be considered a hallmark of cancer.

关键词：癌症患者抗凋亡蛋白 Caspase-3 抗细胞凋亡 Bcl-2蛋白 Bax蛋白有丝分裂过度表达

Real world effectiveness of PCSK-9 inhibitors combined with statins versus statins-based therapy among patients with very high risk of atherosclerotic cardiovascular disease in China(RWE-PCSK study)

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Journal of Geriatric Cardiology 2021年第4期18卷 261-270页

作者： Yu-Qi LIU Dan-Dan LI Meng CHAI Hong-Liang CONG Xiao-Qiang CONG Jun DAI Rong-Pin DU Ming GAO Jin-Cheng guo yan-qing guo Xiao-Jian HONG Rong-Chong HUANG Feng-Shun JIA Jia-Yu LI qing LI Jia-Mei LIU Xin-Ping LIU Yu-guo LIU Hong-Gang NIE Bing SHAO Xiao-Yu SHEN Hai-qing SONG Yi-Jun SONG Li-Jun WANG Shuo WANG Dong-Mei WU Jing XIA Zhi-Yong yanG Hong-Ying YU Hui ZHANG Tie-Mei ZHANG Ji-Yi ZHAO Liang-Chen ZHAO Ming-Qi ZHENG Yun-Dai CHEN Department of Cardiology Chinese PLA General HospitalBeijingChina Department of Cardiology Beijing Anzhen HospitalCapital Medical UniversityBeijing Institute of Heart Lung and Blood Vessel DiseaseBeijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic DiseaseClinical Center for Coronary Heart DiseaseCapital Medical UniversityBeijingChina Department of Cardiology Tianjin Chest HospitalTianjinChina Department of Cardiology the First Hospital of Jilin UniversityChangchunChina Department of Cardiology Fuwai HospitalNational Center for Cardiovascular DiseaseChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina Department of Cardiology Hebei People’s HospitalShijiazhuangChina Department of Cardiology Kailuan General HospitalHebei Union UniversityTangshanChina Department of Cardiology Beijing Luhe HospitalCapital Medical UniversityBeijingChina Department of Cardiology Shanxi Cardiovascular HospitalTaiyuanChina Department of Cardiology the Fourth Affiliated Hospital of Harbin Medical UniversityHarbinChina Department of Cardiology Beijing Friendship HospitalCapital Medical UniversityBeijingChina Department of Cardiology Tangshan Worker’s HospitalTangshanChina Department of Cardiology China-Japan Friendship Hospital Affiliated Jilin UniversityChangchunChina Department of Cardiology Handan Central HospitalHebeiChina Heart Center Beijing Key Laboratory of HypertensionBeijing Chao-Yang HospitalCapital Medical UniversityBeijingChina Department of Cardiology the First Affiliated Hospital of Dalian Medical UniversityLiaoningChina Department of Cardiology the Second Affiliated Hospital of Harbin Medical UniversityHarbinChina Department of Cardiology the Second Affiliated Hospital of Shenyang Medical CollegeShenyangChina Department of Cardiology the Second Hospital of Shanxi Medical UniversityTaiyuanChina Department of Neurology Xuanwu Hospital Capital Medical UniversityBeijingChina Department of Neurology Tianjin Medical University Gen

BACKGROUND The efficacy and safety of proprotein convertase subtilisin/kexin type 9(PCSK-9) inhibitors were confirmed by several clinical trials, but its effectiveness in routine clinical practice in China has not been evaluated. This study aims to describe the real world effectiveness of PCSK-9 inhibitors combined with statins compared with statins-based therapy among patients with very high risk of atherosclerotic cardiovascular disease(ASCVD).METHODS This is a multi-center observational study, enrolled patients from 32 hospitals who underwent percutaneous coronary intervention(PCI) from January to June in 2019. There are 453 patients treated with PCSK-9 inhibitors combined with statins in PCSK-9 inhibitor group and 2,610 patients treated with statins-based lipid lowering therapies in statins-based group. The lipid control rate and incidence of major adverse cardiovascular events(MACE) over six months were compared between two groups.A propensity score-matched(PSM) analysis was used to balance two groups on confounding factors. Survival analysis using Kaplan-Meier methods was applied for *** In a total of 3,063 patients, 89.91% of patients had received moderate or high-intensity statins-based therapy before PCI, but only 9.47% of patients had low-density lipoprotein cholesterol(LDL-C) levels below 1.4 mmol/L at baseline. In the PSM selected patients, LDL-C level was reduced by 42.57% in PCSK-9 inhibitor group and 30.81%(P < 0.001) in statins-based group after six months. The proportion of LDL-C ≤ 1.0 mmol/L increased from 5.29% to 29.26% in PCSK-9 inhibitor group and 0.23% to 6.11% in statins-based group, and the proportion of LDL-C ≤ 1.4 mmol/L increased from 10.36% to 47.69% in PCSK-9 inhibitor group and 2.99% to 18.43% in statins-based group(P < 0.001 for both). There was no significant difference between PCSK-9 inhibitor and statins-based treatment in reducing the risk of MACE(hazard ratio = 2.52, 95% CI: 0.49-12.97, P = 0.250).CONCLUSIONS In the real

关键词： LDL RWE-PCSK study Real world effectiveness of PCSK-9 inhibitors combined with statins versus statins-based therapy among patients with very high r

Information visualization analysis on Advances in Psychological Science:1983-2014

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Chinese Nursing Research 2017年第3期4卷 124-129页

作者： xiao-Jie pan Hui-Ning Zhao Mi-Mi Li Li-Hong Hou yan-qing guo Xiao Zheng Ya-qing Xue Chi-Chen Zhang School of Public Health Shanxi Medical University Taiyuan Shanxi 030001 China School of Management Shanxi Medical University Taiyuan Shanxi 030001 China

Objective： To describe the revolution and research status of Advances in Psychological Science. Methods： A total of 3060 articles published in Advances in Psychological Science from 1983 to 2014 were analyzed with the information visualization method using Citespace software from the aspects of pub- lications, cited frequency and downloads, funding, organizations, authors and keywords. Results： The results showed that the amount of literature published annually had an upward tendency, and 49.4% of the papers were supported by national or provincial projects. Institutions such as the Chinese Academy of Sciences （CAS） and the normal universities were rated in the forefront of the sci- entific research output. Xiting Huang, Hong Li and Yuejia Luo were at the top of the list of prolific authors. Conclusions： A new pattern of cooperative development of the theory and application in the field of psychological research is forming.

关键词： Advances in psychological science Bibliometrics Citespace Visualization analysis Scientific knowledge map Current research state Research hotspot

The linear self-attracting diffusion driven by the weighted-fractional Brownian motion II: The parameter estimation

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Science China Mathematics 2025年

作者： Litan yan Rui guo Wenyi Pei Department of Statistics College of Science Donghua University School of Statistics and Mathematics Zhejiang Gongshang University

Let Ba,bbe a weighted-fractional Brownian motion with Hurst indexes a and b such that a>-1and 0≤b<1∧（1+a）.In this paper,we consider the linear self-attracting diffusion ■ interacting diffusion (see Cranston and Le Jan （1995）).Under the continuous observation,we study asymptotic ■ converges in distribution to the sum of the chi-square random variable with 1 degree of freedom and the random variable Z1a,b.

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Analysis of Micromechanical Properties at the Interface of Pre-wet SBS Modified Asphalt Mixture Based on Molecular Simulation Technology

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 103-113页

作者： CHEN Wuxing CHEN Shuang YU yan ZHANG Jiangyi XU Haiyang guo Wei School of Mines China University of Mining and TechnologyXuzhou 221000China College of Construction Engineering Jilin Uni-versityChangchun 130026China

The pre-wetting of aggregate surface is a means to improve the interface performance of SBS modified asphalt and *** effect of pre-wetting technology on the interaction between SBS modified asphalt and aggregate was analyzed by molecular dynamics *** diffusion coefficient and concentration distribution of SBS modified asphalt on aggregate surface are *** simulation results show that the diffusion coefficient of the aggregate surface of SBS modified asphalt is increased by 47.6%and 70.5%respectively after 110#asphalt and 130#asphalt are *** concentration distribution of SBS modified asphalt on the aggregate surface after pre-wetting is more *** to the results of interface energy calculation,the interface energy of SBS modified bitumen and aggregate can be increased by about 5%after *** to the results of molecular dynamics simulation,the pre-wetting technology can effectively improve the interface workability of SBS modified bitumen and aggregate,so as to improve the interface performance.

关键词： pre-wet oil-stone interface interface interaction interface mechanics molecular dynamics simulation