China and Laos are close neighbors with a long-standing friendship.Since the early 2000s,China has supported Laos'economic and social development through wide-ranging cooperation projects,all guided by the vision ...China and Laos are close neighbors with a long-standing friendship.Since the early 2000s,China has supported Laos'economic and social development through wide-ranging cooperation projects,all guided by the vision of a community with a shared future.As this vision takes deeper root,many aid projects have moved from blueprint to reality,delivering tangible benefits across towns and villages and improving the lives of ordinary Lao people while further strengthening bilateral ties.展开更多
Terrain Aided Navigation(TAN)technology has become increasingly important due to its effectiveness in environments where Global Positioning System(GPS)is unavailable.In recent years,TAN systems have been extensively r...Terrain Aided Navigation(TAN)technology has become increasingly important due to its effectiveness in environments where Global Positioning System(GPS)is unavailable.In recent years,TAN systems have been extensively researched for both aerial and underwater navigation applications.However,many TAN systems that rely on recursive Unmanned Aerial Vehicle(UAV)position estimation methods,such as Extended Kalman Filters(EKF),often face challenges with divergence and instability,particularly in highly non-linear systems.To address these issues,this paper proposes and investigates a hybrid two-stage TAN positioning system for UAVs that utilizes Particle Filter.To enhance the system’s robustness against uncertainties caused by noise and to estimate additional system states,a Fuzzy Particle Filter(FPF)is employed in the first stage.This approach introduces a novel terrain composite feature that enables a fuzzy expert system to analyze terrain non-linearities and dynamically adjust the number of particles in real-time.This design allows the UAV to be efficiently localized in GPS-denied environments while also reducing the computational complexity of the particle filter in real-time applications.In the second stage,an Error State Kalman Filter(ESKF)is implemented to estimate the UAV’s altitude.The ESKF is chosen over the conventional EKF method because it is more suitable for non-linear systems.Simulation results demonstrate that the proposed fuzzy-based terrain composite method achieves high positional accuracy while reducing computational time and memory usage.展开更多
BACKGROUND Early detection of esophageal squamous neoplasms(ESN)is essential for improving patient prognosis.Optical diagnosis of ESN remains challenging.Probebased confocal laser endomicroscopy(pCLE)enables accurate ...BACKGROUND Early detection of esophageal squamous neoplasms(ESN)is essential for improving patient prognosis.Optical diagnosis of ESN remains challenging.Probebased confocal laser endomicroscopy(pCLE)enables accurate in vivo histological observation and optical biopsy of ESN.However,interpretation of pCLE images requires histopathological expertise and extensive training.Artificial intelligence(AI)has been widely applied in digestive endoscopy;however,AI for pCLE diagnosis of ESN has not been reported.AIM To develop a pCLE computer-aided diagnostic system for ESN and assess its diagnostic performance and assistant efficiency for nonexpert endoscopists.METHODS The intelligent confocal laser endomicroscopy(iCLE)system consists of image recognition(based on inception-ResNet V2),video diagnosis,and quality judgment modules.This system was developed using pCLE images and videos and evaluated through image and prospective video recognition tests.Patients between June 2020 and January 2023 were prospectively enrolled.Expert and nonexpert endoscopists and the iCLE independently performed diagnoses for pCLE videos,with histopathology as the gold standard.Thereafter,the non-expert endoscopists performed a second assessment with iCLE assistance.RESULTS A total of 25056 images from 2803 patients were selected for iCLE training and validation.Another 2442 images from 226 patients were used for testing.iCLE achieved a high accuracy of 98.3%,sensitivity of 95.3%and specificity of 98.8%for diagnosing ESN images.A total of 2581 patients underwent upper gastrointestinal pCLE examination and were prospectively screened;54 patients with suspected ESN were enrolled.Overall,187 videos from 67 lesions were assessed by iCLE,three nonexpert and three expert endoscopists.iCLE achieved a high accuracy,sensitivity and specificity of 90.9%,92.0%,and 90.2%,respectively.Compared to experts,iCLE showed significantly higher sensitivity(92.0%vs 80.4%;P<0.001)and negative predictive value(94.4%vs 87.7%;P=0.003).With iCLE assistance,nonexpert endoscopists showed significant improvements in accuracy(from 83.6%to 88.6%)and sensitivity(from 76.0%to 89.8%).CONCLUSION iCLE system demonstrated high diagnostic performance for ESN.It can assist nonexpert endoscopists in improving the diagnostic efficiency of pCLE for ESN and has the potential for reducing unnecessary biopsies.展开更多
In the heart of Addis Ababa,where tradition meets modern ambition,a gleaming structure of steel and glass is quietly reshaping Africa’s future.The new Africa Centres for Disease Control and Prevention(Africa CDC)Head...In the heart of Addis Ababa,where tradition meets modern ambition,a gleaming structure of steel and glass is quietly reshaping Africa’s future.The new Africa Centres for Disease Control and Prevention(Africa CDC)Headquarters is more than just a building-it’s a bold statement of partnership,progress,and a shared commitment to advancing public health across the continent.展开更多
Unmanned Aerial Vehicle(UAV)-aided communication,prized for its network reconfigurability,operational flexibility,and cost-effectiveness,is a key enabler of the low-altitude economy.However,the high possibilities of l...Unmanned Aerial Vehicle(UAV)-aided communication,prized for its network reconfigurability,operational flexibility,and cost-effectiveness,is a key enabler of the low-altitude economy.However,the high possibilities of line-of-sight links and the broadcast nature of air-ground UAV communications make it vulnerable and prone to eavesdropping by malicious nodes.展开更多
Unmanned Aerial Vehicle(UAV)-aided communication holds great potential to enhance the transmission performance.However,the information security remains a fundamental requirement due to the high possibilities of line-o...Unmanned Aerial Vehicle(UAV)-aided communication holds great potential to enhance the transmission performance.However,the information security remains a fundamental requirement due to the high possibilities of line-of-sight links and the broadcast nature.展开更多
Porcine Contagious Pleuropneumonia(PCP)is a respiratory infectious disease of pigs caused by Actinobacillus pleuropneumoniae.The disease has been prevalent in pig farms since it was first identified in 1957(Pattison e...Porcine Contagious Pleuropneumonia(PCP)is a respiratory infectious disease of pigs caused by Actinobacillus pleuropneumoniae.The disease has been prevalent in pig farms since it was first identified in 1957(Pattison et al.1957).展开更多
目的 分析HIV/AIDS患者衰弱的研究热点,为该领域的研究提供临床参考和理论基础。方法 检索Web of Science(WOS)核心合集数据库2015年1月至2025年1月发表的HIV/AIDS患者衰弱相关的文献,采用CiteSpace软件对文献进行可视化分析。结果 共纳...目的 分析HIV/AIDS患者衰弱的研究热点,为该领域的研究提供临床参考和理论基础。方法 检索Web of Science(WOS)核心合集数据库2015年1月至2025年1月发表的HIV/AIDS患者衰弱相关的文献,采用CiteSpace软件对文献进行可视化分析。结果 共纳入251篇文献,在国家层面,发文量居首位的为美国(135篇),中国的发文量相对较少(10篇)。中介中心性最高的为南非(0.82)。在机构层面,发文量最高的为约翰斯·霍普金斯大学(51篇),中介中心性(0.10)仅次于伦敦大学(0.12)。关键词共现分析频次最高的前三个为older adults(老年人)、infection(感染)、phenotype(表型);关键词聚类共有13个标签;关键词突现结果显示近几年研究的关键词为depression(抑郁)、challenges(挑战)、index(指数)、people with HIV(HIV感染者)、people(人群)、predictor(预测因子)。结论 老年人是HIV/AIDS衰弱研究领域的核心人群,该领域的研究热点围绕优化老年HIV/AIDS患者的共病管理、提升cART效果、开发HIV/AIDS患者衰弱针对性评估工具展开。未来研究需加强HIV/AIDS患者社会心理因素的关注力度,贯彻落实以患者为中心的护理,提高预测因子识别HIV/AIDS患者衰弱的准确性,开展多学科合作。展开更多
Despite effective antiretroviral therapy(ART),many individuals with human immunodeficiency virus(HIV)/acquired immune deficiency syndrome(AIDS)achieve viral suppression but fail to fully restore cluster of differentia...Despite effective antiretroviral therapy(ART),many individuals with human immunodeficiency virus(HIV)/acquired immune deficiency syndrome(AIDS)achieve viral suppression but fail to fully restore cluster of differentiation 4(CD4)^(+)T lymphocyte(CD4 cell)counts—a condition known as immunological non-response(INRs).INRs are associated with elevated health risks,including increased susceptibility to AIDS-related and non-AIDS-related complications.The pathogenesis of INRs remains incompletely understood,and no established therapeutic interventions exist,posing a major challenge in contemporary HIV/AIDS management.Emerging evidence indicates that INRs exhibit significant alterations in gut microbiota composition.Dysbiosis of the gut microbiota may contribute to persistent immune activation,cytokine imbalance,and cellular pyroptosis,all of which could impair immune reconstitution in people living with HIV/AIDS.Traditional Chinese medicine(TCM)has demonstrated potential immunomodulatory effects and is increasingly utilized in the management of INRs.Targeting the gut microbiota and elucidating the mechanisms by which TCM modulates this microbial ecosystem may offer new avenues for preventing and treating INRs.This review explores the interplay between gut microbiota and TCM,examines the association between gut dysbiosis and INRs,discusses the mechanistic pathways through which microbiota imbalance contributes to INRs development,and highlights how TCM interventions regulate gut microbiota to promote immune recovery.By focusing on the gut microbiota as a therapeutic interface,this article provides novel insights into TCM-based strategies for improving outcomes in INRs and supports the development of innovative treatment approaches.展开更多
基金supported by the Yunnan Provincial Philosophy and Social Science Planning Projectthe Yunnan Academy of Social Sciences。
文摘China and Laos are close neighbors with a long-standing friendship.Since the early 2000s,China has supported Laos'economic and social development through wide-ranging cooperation projects,all guided by the vision of a community with a shared future.As this vision takes deeper root,many aid projects have moved from blueprint to reality,delivering tangible benefits across towns and villages and improving the lives of ordinary Lao people while further strengthening bilateral ties.
文摘Terrain Aided Navigation(TAN)technology has become increasingly important due to its effectiveness in environments where Global Positioning System(GPS)is unavailable.In recent years,TAN systems have been extensively researched for both aerial and underwater navigation applications.However,many TAN systems that rely on recursive Unmanned Aerial Vehicle(UAV)position estimation methods,such as Extended Kalman Filters(EKF),often face challenges with divergence and instability,particularly in highly non-linear systems.To address these issues,this paper proposes and investigates a hybrid two-stage TAN positioning system for UAVs that utilizes Particle Filter.To enhance the system’s robustness against uncertainties caused by noise and to estimate additional system states,a Fuzzy Particle Filter(FPF)is employed in the first stage.This approach introduces a novel terrain composite feature that enables a fuzzy expert system to analyze terrain non-linearities and dynamically adjust the number of particles in real-time.This design allows the UAV to be efficiently localized in GPS-denied environments while also reducing the computational complexity of the particle filter in real-time applications.In the second stage,an Error State Kalman Filter(ESKF)is implemented to estimate the UAV’s altitude.The ESKF is chosen over the conventional EKF method because it is more suitable for non-linear systems.Simulation results demonstrate that the proposed fuzzy-based terrain composite method achieves high positional accuracy while reducing computational time and memory usage.
基金Supported by the National Key Research and Development Program of China,No.2023YFC2413800the Taishan Scholars Program of Shandong Province,No.tsqn202306344the National Natural Science Foundation of China,No.82270580 and No.82070552.
文摘BACKGROUND Early detection of esophageal squamous neoplasms(ESN)is essential for improving patient prognosis.Optical diagnosis of ESN remains challenging.Probebased confocal laser endomicroscopy(pCLE)enables accurate in vivo histological observation and optical biopsy of ESN.However,interpretation of pCLE images requires histopathological expertise and extensive training.Artificial intelligence(AI)has been widely applied in digestive endoscopy;however,AI for pCLE diagnosis of ESN has not been reported.AIM To develop a pCLE computer-aided diagnostic system for ESN and assess its diagnostic performance and assistant efficiency for nonexpert endoscopists.METHODS The intelligent confocal laser endomicroscopy(iCLE)system consists of image recognition(based on inception-ResNet V2),video diagnosis,and quality judgment modules.This system was developed using pCLE images and videos and evaluated through image and prospective video recognition tests.Patients between June 2020 and January 2023 were prospectively enrolled.Expert and nonexpert endoscopists and the iCLE independently performed diagnoses for pCLE videos,with histopathology as the gold standard.Thereafter,the non-expert endoscopists performed a second assessment with iCLE assistance.RESULTS A total of 25056 images from 2803 patients were selected for iCLE training and validation.Another 2442 images from 226 patients were used for testing.iCLE achieved a high accuracy of 98.3%,sensitivity of 95.3%and specificity of 98.8%for diagnosing ESN images.A total of 2581 patients underwent upper gastrointestinal pCLE examination and were prospectively screened;54 patients with suspected ESN were enrolled.Overall,187 videos from 67 lesions were assessed by iCLE,three nonexpert and three expert endoscopists.iCLE achieved a high accuracy,sensitivity and specificity of 90.9%,92.0%,and 90.2%,respectively.Compared to experts,iCLE showed significantly higher sensitivity(92.0%vs 80.4%;P<0.001)and negative predictive value(94.4%vs 87.7%;P=0.003).With iCLE assistance,nonexpert endoscopists showed significant improvements in accuracy(from 83.6%to 88.6%)and sensitivity(from 76.0%to 89.8%).CONCLUSION iCLE system demonstrated high diagnostic performance for ESN.It can assist nonexpert endoscopists in improving the diagnostic efficiency of pCLE for ESN and has the potential for reducing unnecessary biopsies.
文摘In the heart of Addis Ababa,where tradition meets modern ambition,a gleaming structure of steel and glass is quietly reshaping Africa’s future.The new Africa Centres for Disease Control and Prevention(Africa CDC)Headquarters is more than just a building-it’s a bold statement of partnership,progress,and a shared commitment to advancing public health across the continent.
文摘Unmanned Aerial Vehicle(UAV)-aided communication,prized for its network reconfigurability,operational flexibility,and cost-effectiveness,is a key enabler of the low-altitude economy.However,the high possibilities of line-of-sight links and the broadcast nature of air-ground UAV communications make it vulnerable and prone to eavesdropping by malicious nodes.
文摘Unmanned Aerial Vehicle(UAV)-aided communication holds great potential to enhance the transmission performance.However,the information security remains a fundamental requirement due to the high possibilities of line-of-sight links and the broadcast nature.
基金supported by the University-Industry Col aborative Education Program,China(220904860093831)。
文摘Porcine Contagious Pleuropneumonia(PCP)is a respiratory infectious disease of pigs caused by Actinobacillus pleuropneumoniae.The disease has been prevalent in pig farms since it was first identified in 1957(Pattison et al.1957).
文摘目的 分析HIV/AIDS患者衰弱的研究热点,为该领域的研究提供临床参考和理论基础。方法 检索Web of Science(WOS)核心合集数据库2015年1月至2025年1月发表的HIV/AIDS患者衰弱相关的文献,采用CiteSpace软件对文献进行可视化分析。结果 共纳入251篇文献,在国家层面,发文量居首位的为美国(135篇),中国的发文量相对较少(10篇)。中介中心性最高的为南非(0.82)。在机构层面,发文量最高的为约翰斯·霍普金斯大学(51篇),中介中心性(0.10)仅次于伦敦大学(0.12)。关键词共现分析频次最高的前三个为older adults(老年人)、infection(感染)、phenotype(表型);关键词聚类共有13个标签;关键词突现结果显示近几年研究的关键词为depression(抑郁)、challenges(挑战)、index(指数)、people with HIV(HIV感染者)、people(人群)、predictor(预测因子)。结论 老年人是HIV/AIDS衰弱研究领域的核心人群,该领域的研究热点围绕优化老年HIV/AIDS患者的共病管理、提升cART效果、开发HIV/AIDS患者衰弱针对性评估工具展开。未来研究需加强HIV/AIDS患者社会心理因素的关注力度,贯彻落实以患者为中心的护理,提高预测因子识别HIV/AIDS患者衰弱的准确性,开展多学科合作。
基金supported by the National Natural Science Foundation of China(No.82274474)。
文摘Despite effective antiretroviral therapy(ART),many individuals with human immunodeficiency virus(HIV)/acquired immune deficiency syndrome(AIDS)achieve viral suppression but fail to fully restore cluster of differentiation 4(CD4)^(+)T lymphocyte(CD4 cell)counts—a condition known as immunological non-response(INRs).INRs are associated with elevated health risks,including increased susceptibility to AIDS-related and non-AIDS-related complications.The pathogenesis of INRs remains incompletely understood,and no established therapeutic interventions exist,posing a major challenge in contemporary HIV/AIDS management.Emerging evidence indicates that INRs exhibit significant alterations in gut microbiota composition.Dysbiosis of the gut microbiota may contribute to persistent immune activation,cytokine imbalance,and cellular pyroptosis,all of which could impair immune reconstitution in people living with HIV/AIDS.Traditional Chinese medicine(TCM)has demonstrated potential immunomodulatory effects and is increasingly utilized in the management of INRs.Targeting the gut microbiota and elucidating the mechanisms by which TCM modulates this microbial ecosystem may offer new avenues for preventing and treating INRs.This review explores the interplay between gut microbiota and TCM,examines the association between gut dysbiosis and INRs,discusses the mechanistic pathways through which microbiota imbalance contributes to INRs development,and highlights how TCM interventions regulate gut microbiota to promote immune recovery.By focusing on the gut microbiota as a therapeutic interface,this article provides novel insights into TCM-based strategies for improving outcomes in INRs and supports the development of innovative treatment approaches.
