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基于改进CenterNet的无人机森林病虫害图像目标检测方法
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作者 梁大双 刘文萍 +2 位作者 赵玉刚 宗世祥 骆有庆 《北京林业大学学报》 北大核心 2026年第3期140-151,共12页
【目的】为提高无人机图像中受害木的检测精度,在CenterNet目标检测方法基础上进行了改进,提出一种改进的检测方法——ECenterNet。【方法】(1)针对无人机图像中受害木外接框多为长方形的特点,用二维椭圆高斯替换原CenterNet方法中的二... 【目的】为提高无人机图像中受害木的检测精度,在CenterNet目标检测方法基础上进行了改进,提出一种改进的检测方法——ECenterNet。【方法】(1)针对无人机图像中受害木外接框多为长方形的特点,用二维椭圆高斯替换原CenterNet方法中的二维圆形高斯来生成受害木中心点周围的惩罚区域,使得生成的惩罚区域与实际受害木的外接框形状更加匹配。(2)在大规模无标签的无人机图像数据集上,采用自监督学习方法训练ResNet101网络以获得用于受害木目标检测网络的预训练模型,为受害木目标检测模型提供丰富的先验信息,从而提升受害木检测精度。(3)在CenterNet原有损失函数的基础上,借鉴自监督学习的思想,设计了对比学习损失函数。该函数可使模型提取的受害木特征在类内更聚集、类间更可分,从而提升了模型类别判定的精度。(4)在目标检测网络的类别层分支中,利用中心差分卷积替换传统卷积,使得模型的类别分支层不仅能提取到图像的语义信息,还能提取到当前像素与周围像素的差分信息,为模型的分类提供了更多的有用信息。【结果】实验结果表明,ECenterNet模型在几乎不增加推理耗时的情况下,mAP@[0.5,0.95]从原始CenterNet的0.498提升至0.543,精度提高了4.5个百分点。其中,自监督预训练与对比学习损失函数的引入贡献了2.4%的性能增益,充分验证了所提优化算法及自监督学习策略的有效性。【结论】本文所提出的4点改进在几乎不增加模型推理计算成本的前提下,有效提升了模型精度,验证了ECenterNet方法的有效性,为森林病虫害的精准监测提供了有力的技术支撑。 展开更多
关键词 无锚框检测器 CenterNet 受害木检测 深度学习 无人机
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Centralized Circumcentered-Reflection Method for Solving the Convex Feasibility Problem in Sparse Signal Recovery
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作者 Chunmei LI Bangjun CHEN Xuefeng DUAN 《Journal of Mathematical Research with Applications》 2026年第1期119-133,共15页
Convex feasibility problems are widely used in image reconstruction, sparse signal recovery, and other areas. This paper is devoted to considering a class of convex feasibility problem arising from sparse signal recov... Convex feasibility problems are widely used in image reconstruction, sparse signal recovery, and other areas. This paper is devoted to considering a class of convex feasibility problem arising from sparse signal recovery. We first derive the projection formulas for a vector onto the feasible sets. The centralized circumcentered-reflection method is designed to solve the convex feasibility problem. Some numerical experiments demonstrate the feasibility and effectiveness of the proposed algorithm, showing superior performance compared to conventional alternating projection methods. 展开更多
关键词 convex feasibility problem centralized circumcentered-re ection method sparse signal recovery compressed sensing
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A new research and development paradigm for pattern-based new traditional Chinese medicine compound preparations:Integrating human use experience with patient-centered principles
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作者 Huimin Tang Yaqin Tang +2 位作者 Shihao Ni Yanping Du Zhongqi Yang 《Journal of Traditional Chinese Medical Sciences》 2026年第1期12-18,共7页
The development of pattern-based traditional Chinese medicine(TCM)compound preparations constitutes a core domain that represents the principle of pattern differentiation-based treatment,a hallmark of TCM.However,the ... The development of pattern-based traditional Chinese medicine(TCM)compound preparations constitutes a core domain that represents the principle of pattern differentiation-based treatment,a hallmark of TCM.However,the field has long been constrained by scientific and regulatory challenges in animal modeling,efficacy evaluation,and clinical positioning.This article proposes a new research and development(R&D)paradigm strategically based on human use experience(HUE)and centered on the patient as the key to overcoming these bottlenecks and achieving high-quality progress.We systematically dissect the traditional problems in this field and demonstrate the pivotal role of high-quality HUE in enabling precise clinical positioning and optimizing R&D pathways(e.g.,applying for exemptions from non-clinical studies).HUE guides the implementation of the“pattern-symptom integration”model.Furthermore,we detail the implementation of the patient-centered concept throughout the process of clinical trial design,collection of patients’experience data,clinical outcome assessment,and benefit-risk assessment.The integrative application of artificial intelligence in the R&D of pattern-based TCM drugs is also specifically explored.By synthesizing the“TCM theory,HUE,and clinical trials”evidence system,this article aims to provide a systematic strategic framework for establishing an R&D pathway that adheres to the intrinsic principles of TCM while simultaneously meeting modern scientific standards. 展开更多
关键词 TCM patterns Human use experience Patient-centered approach Clinical trials
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Genomic sequencing as a key primary recommendation for neonatal hyperbilirubinemia:a population-based multicenter study
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作者 Dabin Huang Xia Gu +10 位作者 Weizhong Li Hongying Mi Haiquan Zeng Guiying Zhuang Sitao Li Congcong Shi Tao Wei Wei Zhou Xin Xiao Wenhao Zhou Hu Hao 《Journal of Genetics and Genomics》 2026年第3期467-475,共9页
Genetic variations are risk factors for neonatal hyperbilirubinemia(NHB),a common cause of infant hospitalization in the first postnatal week,but their contribution and long-term impacts remain unclear.This population... Genetic variations are risk factors for neonatal hyperbilirubinemia(NHB),a common cause of infant hospitalization in the first postnatal week,but their contribution and long-term impacts remain unclear.This population-based multicenter study enrolls 1780 hospitalized NHB newborns and 38,158 genetically screened newborns across 20 hospitals(2019-2022).Excluding cases with clear clinical causes,977 NHB cases are categorized into genetic variation-positive and-negative groups.Results show significantly higher NHB-related gene variants(81.63%vs.65.62%)and positive variation rates(36.29%vs.9.4%)in NHB cases than in the general newborn population(all P<0.001).Among the 977 NHB cases,325(33.3%)have positive variants,with higher rates of severe hyperbilirubinemia(16.9%vs.9.7%,P=0.001),prolonged jaundice(36.3%vs.27.6%,P=0.005),and cholestasis/hypercholanaemia(23.7%vs.14.7%,P<0.001)in the positive group.Cumulative genetic variants in bilirubin metabolism pathways exhibit dosedependent associations with increased risks of complications.Long-term follow-up reveals that UGT1A1 variants prolong jaundice up to one month,while severe SLC10A1 variants cause persistent cholestasis/hypercholanaemia beyond nine months.This large-scale evidence highlights genetic factors as key NHB determinants,with implications for neonatal care protocols to integrate genetic testing and establish longterm surveillance for variant carriers. 展开更多
关键词 Neonatal hyperbilirubinemia Jaundice polygene metabolic disorder Genetic variations Prolonged jaundice Multicenter observational study
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Efficacy and Safety of Drug-Coated Balloon in Revascularization of Patients with Acute Myocardial Infarction:A Single-Center Retrospective Cohort Study
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作者 Yunpeng Fan Zhibiao Chen +4 位作者 Jinhai Luo Yan Deng Renxiu Li Xiaojin Pan Chunling Tang 《Journal of Clinical and Nursing Research》 2026年第2期1-10,共10页
Background:Drug-coated balloons(DCBs)are receiving increasing attention in interventional therapy for coronary artery disease.However,evidence regarding their application in acute myocardial infarction(AMI),particular... Background:Drug-coated balloons(DCBs)are receiving increasing attention in interventional therapy for coronary artery disease.However,evidence regarding their application in acute myocardial infarction(AMI),particularly in high-risk AMI patients,is limited,leading to significant clinical concerns.This study aims to compare the efficacy and safety of DCBs versus standard drug-eluting stents(DESs)in AMI patients and explore their efficacy differences in patients with ST-segment elevation myocardial infarction(STEMI),non-ST-segment elevation myocardial infarction(NSTEMI),and different risk stratifications.Methods:A single-center,retrospective cohort study was conducted,involving 86 patients who underwent percutaneous coronary intervention(PCI)for AMI between January 2023 and July 2025.Patients were divided into a DCB group(n=26)and a DES group(n=60)based on the treatment modality.According to the Killip classification of myocardial infarction at admission,patients were categorized into a low-risk group(Killip Class I,n=68)and a high-risk group(Killip Classes II-IV,n=18).The primary efficacy endpoint was targeting lesion restenosis as shown by coronary angiography follow-up(6-12 months).Safety endpoints included acute in-stent thrombosis during hospitalization(ARC criteria)and long-term coronary slow flow.A multivariate logistic regression model was used to evaluate the associations between intervention modality,risk stratification,infarction type,and endpoint events,and to test for interactions.Results:The DCB and DES groups were generally balanced in terms of baseline traditional risk factors.During hospitalization,three cases(5.0%)of acute in-stent thrombosis occurred in the DES group,all requiring urgent re-intervention,while no such events occurred in the DCB group(0%).Acute in-stent thrombosis formation was significantly associated with high-risk stratification(χ2 test,p=0.047).The overall restenosis rate was 22.1%(19/86).Multivariate analysis showed no statistically significant difference in restenosis risk between the intervention modalities(DCB vs.DES)(adjusted odds ratio[OR]=1.07,95%confidence interval[CI]0.27-4.21,p=0.920),and no statistical differences were found in subgroups based on risk stratification(p=0.382)or infarction type(p=0.484).There was a trend toward increased restenosis risk in high-risk patients(OR=12.34),but the difference was not statistically significant(95%CI 0.28-542.75,p=0.193).The incidence of long-term coronary slow flow was significantly higher in the DES group than in the DCB group(16.7%vs.3.8%,Fisher’s exact test,p=0.048),with a statistically significant difference.Conclusion:For AMI patients,DCBs demonstrate similar efficacy to DESs in preventing restenosis.However,DESs are associated with a higher risk of acute thrombosis during hospitalization,especially in high-risk patients,and a higher risk of long-term slow coronary flow.DCBs exhibit superior perioperative and long-term safety compared to DESs.Given the limited sample size,particularly the small number of high-risk patients and those treated with DCBs,the conclusions require validation through larger-scale prospective studies. 展开更多
关键词 Drug-coated balloon(DCB) Drug-eluting stent(DES) Acute myocardial infarction(AMI) Coronary restenosis Coronary slow flow phenomenon(CSFP) Risk stratification
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AI and Big Data in Oncology:A Physician-Centered Perspective on Emerging Clinical and Research Applications
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作者 Binliang Liu Qingyao Shang +5 位作者 Jun Li Shuna Yao Meishuo Ouyang Yu Wang Sheng Luo Quchang Ouyang 《Cancer Innovation》 2026年第1期33-46,共14页
The convergence of artificial intelligence(AI)and big data is reshaping contemporary oncology by enabling the integration of multimodal information across imaging,pathology,genomics,and clinical records.From a physici... The convergence of artificial intelligence(AI)and big data is reshaping contemporary oncology by enabling the integration of multimodal information across imaging,pathology,genomics,and clinical records.From a physician-centered perspective,these technologies can potentially be used to improve diagnostic precision,support individualized treatment planning,enhance longitudinal patient management,and accelerate both clinical and translational research.In this review,we synthesize the core AI methodologies most relevant to oncology-machine learning,deep learning,and large language models-and examine how they interact with established and emerging oncology data platforms.We further highlight practical use cases in clinical workflows and research pipelines,emphasizing opportunities for advancing precision cancer care while also addressing challenges associated with data heterogeneity,model generalizability,privacy protection,and real-world implementation.By underscoring the synergistic value of AI and big data,this review aims to inform the development of clinically meaningful,context-adapted strategies that promote translational innovation in both global and locally resourced healthcare environments. 展开更多
关键词 artificial intelligence big data cancer challenges and solutions clinical applications research design
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Different approaches of laparoscopic anatomic hepatectomy of segment 7 for hepatocellular carcinoma:A multicenter study
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作者 Xing-Ru Wang Qi-Fan Zhang +6 位作者 Wei Cheng Xiao Liang Jun Cao Yong-Gang Wei Jian-Wei Li Hong-Guang Wang Chinese Research Group for Minimally Invasive Anatomical Liver Resection(The Workshop of Liver Future 《Hepatobiliary & Pancreatic Diseases International》 2026年第1期42-51,共10页
Background:Laparoscopic anatomic hepatectomy of segment 7(LAH-S7)is a challenging surgery.In this study we aimed to investigate surgical and oncological outcomes of various approaches of LAH-S7 in patients with hepato... Background:Laparoscopic anatomic hepatectomy of segment 7(LAH-S7)is a challenging surgery.In this study we aimed to investigate surgical and oncological outcomes of various approaches of LAH-S7 in patients with hepatocellular carcinoma(HCC).A particular focus was placed on identifying the Glissonean pedicle of segment 7(G7)and the intersegmental plane.Given the scarcity of comprehensive reviews or comparative studies on clinical outcomes,we also sought to analyze the experiences and advantages associated with different approaches in relation to the anatomic variations of G7.Methods:The clinical data of 124 patients who underwent LAH-S7 for HCC across seven tertiary referral medical centers in China were retrospectively analyzed.Three surgical approaches were categorized based on the procedures used for G7 identification:the indocyanine green(ICG)fluorescence positive staining approach(IFPA),the Glissonean approach(GA),and the hepatic vein-guided approach(HVGA).Subsequently,the postoperative short-term results and oncological outcomes of the three different approaches were compared.Results:The distribution of surgical approaches among the patients was as follows:IFPA in 16(12.9%),GA in 62(50.0%),and HVGA in 46(37.1%)patients.Complications were observed in 27(21.8%)patients.The 1-,3-,and 5-year overall survival(OS)rates were 99.1%,89.2%,and 84.7%,respectively.The 1-,3-,and 5-year recurrence-free survival(RFS)rates were 99.0%,84.7%,and 69.3%,respectively.The OS and RFS rates were comparable across the three approaches.Conclusions:Following a standardized surgical procedure,LAH-S7 is demonstrated to be safe and yields favorable oncological outcomes.Surgeons performing LAH-S7 should select the appropriate surgical approach based on the anatomical characteristics and variations of G7. 展开更多
关键词 Hepatocellular carcinoma Liver neoplasms HEPATECTOMY LAPAROSCOPY Indocyanine green Segment 7
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High efficiency of thalassemia prevention by next-generation sequencing:a real-world cohort study in two centers of China
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作者 Jinman Zhang Wenqian Zhang +18 位作者 Haoqing Zhang Aiqi Cai Caiyun Li Ling Liu Jufang Tan Yang Yang Wen Yuan Jing He Shiping Chen Yingli Cao Yan Zhang Jie Zhang Rui Zhou Shuai Hou Dongqun Huang Danjing Chen Zhiyu Peng Dongzhu Lei Baosheng Zhu 《Journal of Genetics and Genomics》 2026年第1期87-96,共10页
The occurrence of severe thalassemia,an inherited blood disorder that is either blood-transfusiondependent or fatal,can be mitigated through carrier screening.Here,we aim to evaluate the effectiveness and outcomes of ... The occurrence of severe thalassemia,an inherited blood disorder that is either blood-transfusiondependent or fatal,can be mitigated through carrier screening.Here,we aim to evaluate the effectiveness and outcomes of pre-conceptional and early pregnancy screening initiatives for severe thalassemia prevention in a diverse population of 28,043 women.Using next-generation sequencing(NGS),we identify 4,226(15.07%)thalassemia carriers across 29 ethnic groups and categorize them into high-(0.75%),low-(25.86%),and unknown-risk(69.19%)groups based on their spouses'screening results.Post-screening follow-up reveals 59 fetuses with severe thalassemia exclusively in high-risk couples,underscoring the efficacy of risk classification.Among 25,053 live births over 6 months of age,two severe thalassemia infants were born to unknown-risk couples,which was attributed to incomplete screening and late NGS-based testing for a rare variant.Notably,64 rare variants are identified in 287 individuals,highlighting the genetic heterogeneity of thalassemia.We also observe that migrant flow significantly impacts carrier rates,with 93.90%of migrants to Chenzhou originating from high-prevalence regions in southern China.Our study demonstrates that NGS-based screening during pre-conception and early pregnancy is effective for severe thalassemia prevention,emphasizing the need for continuous screening efforts in areas with high and underestimated prevalence. 展开更多
关键词 THALASSEMIA Carrier screening Next generation sequencing Rare thalassemia Clinical effectiveness Blood-transfusion-dependent
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基于改进CenterNet算法的番茄叶片病害检测
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作者 李亚 蒋晨 +2 位作者 王海瑞 朱贵富 胡灿 《浙江大学学报(工学版)》 北大核心 2025年第11期2370-2378,共9页
为了解决在传统番茄叶片病害检测中出现的误检和漏检现象,提出基于改进CenterNet算法的番茄叶片病害检测模型.构建融合注意力机制的特征融合模块,增强模型的跨尺度特征融合能力.在骨干网络中加入多分支卷积模块RFB,扩大感受野,加强对目... 为了解决在传统番茄叶片病害检测中出现的误检和漏检现象,提出基于改进CenterNet算法的番茄叶片病害检测模型.构建融合注意力机制的特征融合模块,增强模型的跨尺度特征融合能力.在骨干网络中加入多分支卷积模块RFB,扩大感受野,加强对目标特征的提取能力.在骨干网络中引入金字塔卷积PyConv,通过计算不同尺度的感受野来强化多尺度特征的提取,减少信息损失.设计剪枝优化策略,减少引入模块给模型参数量和计算量带来的影响.试验结果显示,改进后模型的准确率、召回率、mAP_(50)和mAP_(50:95)达到96.3%、80.2%、91.4%和78.7%.利用提出的模型,能够有效地提升番茄叶片病害检测的准确性,模型具有良好的泛化性. 展开更多
关键词 番茄叶片病害 CenterNet 特征融合 金字塔卷积 多分支卷积
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New Chapter Between China and Switzerland in Cultural Exchange and Cooperation China Cultural Center Inaugurated in Bern
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作者 Cui Ke 《China & The World Cultural Exchange》 2025年第9期22-23,共2页
The official unveiling of China Cultural Center in Bern signifies a new era of cultural exchange between China and Switzerland.The Center will serve as a vital platform for dialogue between Chinese and Swiss cultures.
关键词 China cultural center Swiss Culture Chinese Culture COOPERATION China Cultural Center Bern Cultural Exchange
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基于改进CenterNet的输电线路异物目标检测 被引量:1
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作者 王明 宋公飞 +1 位作者 王瑞绅 张子梦 《计算机应用与软件》 北大核心 2025年第4期129-134,共6页
针对高压输电线路会存在异物影响线路正常运行,提出一种改进CenterNet的高压输电线路巡检异物的检测方法,对常见的输电线路异物小目标进行检测。该方法基于空洞卷积设计宽型残差模块,加宽残差模块的特征提取面,并且分别采用通道注意力... 针对高压输电线路会存在异物影响线路正常运行,提出一种改进CenterNet的高压输电线路巡检异物的检测方法,对常见的输电线路异物小目标进行检测。该方法基于空洞卷积设计宽型残差模块,加宽残差模块的特征提取面,并且分别采用通道注意力机制与空间注意力机制对特征信息进行二次处理,优化检测精度。实验结果显示,改进后的平均精度从88.59%提升到93.09%,整体提升了4.5百分点。 展开更多
关键词 深度学习 目标检测 CenterNet 输电线路 残差网络
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Prevalence of Helicobacter pylori infection in Chinese military personnel:A cross-sectional,multicenter-based study 被引量:1
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作者 Han-Chen Min Chun-Yan Zhang +9 位作者 Fang-Yu Wang Xiao-Hui Yu Shan-Hong Tang Hong-Wu Zhu Ya-Gang Zhao Ji-Luo Liu Jian Wang Jing-Han Guo Xiao-Mei Zhang Yun-Sheng Yang 《World Journal of Gastroenterology》 SCIE CAS 2025年第3期42-49,共8页
BACKGROUND Helicobacter pylori(H.pylori)infection is a prevalent disease encountered in military internal medicine and recognized as the main cause of dyspepsia,gastritis,and peptic ulcer,which are common diseases in ... BACKGROUND Helicobacter pylori(H.pylori)infection is a prevalent disease encountered in military internal medicine and recognized as the main cause of dyspepsia,gastritis,and peptic ulcer,which are common diseases in military personnel.Current guidelines in China state all patients with evidence of active infection with H.pylori are offered treatment.However,the prevalence of H.pylori infection and its regional distribution in the military population remain unclear,which hinders effective prevention and treatment strategies.Understanding the prevalence of H.pylori infection in the military population will aid in the development of customized strategies to better manage this infectious disease.AIM To investigate the prevalence of H.pylori infection in the Chinese military population in different geographic areas.METHODS This multicenter,retrospective study included 22421 individuals from five tertiary hospitals located in north,east,southwest,and northwest cities of China.H.pylori infection was identified using the urea breath test,which had been performed between January 2020 and December 2021.RESULTS Of the 22421 military service members,7416(33.1%)were urea breath test-positive.The highest prevalence of H.pylori was in the 30-39 years age group for military personnel,with an infection rate of 34.9%.The majority of infected subjects were younger than 40-years-old,accounting for 70.4%of the infected population.The individuals serviced in Lanzhou and Chengdu showed a higher infection prevalence than those in Beijing,Nanjing,and Guangzhou,with prevalence rates of 44.3%,37.9%,29.0%,31.1%,and 32.3%,respectively.CONCLUSION H.pylori infection remains a common infectious disease among military personnel in China and has a relatively high prevalence rate in northwest China. 展开更多
关键词 Helicobacter pylori PREVALENCE Military personnel Urea breath test Multicenter study
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Cortical hem signaling center: functions, development, and potential implications for evolution and brain disorders
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作者 Victor V.Chizhikov Igor Y.Iskusnykh 《Neural Regeneration Research》 SCIE CAS 2025年第4期1079-1080,共2页
Development of the telencephalon relies upon several signaling centers-localized cellular populations that supply secreted factors to pattern the cortical neuroepithelium.One such signaling center is the cortical hem,... Development of the telencephalon relies upon several signaling centers-localized cellular populations that supply secreted factors to pattern the cortical neuroepithelium.One such signaling center is the cortical hem,which arises during embryonic development at the telencephalic dorsal midline,adjacent to the choroid plexus and hippocampal primordium(Figure 1A).While the cortical hem has also been described in reptiles and birds,most of our knowledge about the developmental roles of the cortical hem is derived from the analysis in mice.The cortical hem produces several types of secreted molecules,including wingless-related integration site(Wnt)and bone morphogenetic(Bmp)proteins.The cortical hem is particularly important for the development of the hippocampus,which is involved in learning and memory,and the neocortex,which is the most complex brain region that mediates multiple types of behavior and higher cognitive functions(Mangale et al.,2008;Dal-Valle-Anton and Borrell,2022). 展开更多
关键词 EPITHELIUM FIGURE CENTER
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A narrow-band blue emitting phosphor by co-doping Bi^(3+)and alkali metal ions(Li^(+),Na^(+)and K^(+))with dual luminescence center 被引量:1
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作者 Lang Ruan Zeyun Zhou +5 位作者 Yi Hu Ruifeng Peng Xiaoyan Chen Ming Cheng Zhi Zhou Mao Xia 《Journal of Rare Earths》 2025年第3期543-551,I0005,共10页
The technology of solid-state lighting has developed for decades in various industries.Phosphor,as an element part,determines the application domain of lighting products.For instance,blue and redemitting phosphors are... The technology of solid-state lighting has developed for decades in various industries.Phosphor,as an element part,determines the application domain of lighting products.For instance,blue and redemitting phosphors are required in the process of plant supplementing light,arrow-band emitting phosphors are applied to backlight displays,etc.In this work,a Bi^(3+)-activated blue phosphor was obtained in a symmetrical and co mpact crystal structure of Gd3Sb07(GSO).Then,the co-doping strategy of alkali metal ions(Li^(+),Na^(+),and K^(+))was used to optimize the performance.The result shows that the photoluminescence intensity is increased by 2.1 times and 1.3 times respectively by introducing Li~+and K^(+)ions.Not only that,it also achieves narrow-band emitting with the full width of half-maximum(FWHM)reaching 42 nm through Na^(+)doping,and its excitation peak position also shifts from 322 to 375 nm,which can be well excited by near-ultraviolet(NUV)light emitting diode(LED)chips(365 nm).Meanwhile,the electroluminescence spectrum of GSO:0.6 mol%Bi^(3+),3 wt%Na^(+)matches up to 93.39%of the blue part of the absorption spectrum of chlorophyll a.In summary,the Bi^(3+)-activated blue phosphor reported in this work can synchronously meet the requirements of plant light replenishment and field emission displays. 展开更多
关键词 Bismuth ion Alkali metal ion Narrow-band blue emitting Dual luminescent centers Rare earths
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The Birth on a Scarred Uterus at the Reference Health Center (csref) of Kolondiéba: Socio-Epidemiological and Maternel-Fetal Prognosis Aspect
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作者 Siaka Konaté Kélétigui Samuel Dembélé +6 位作者 Moussa Samaké Yacouba Dembélé Magacha Goita Mamoutou Diarra Souleymane Benké Dembélé Bakary Tientigui Dembélé Adégné Pierre Togo 《Surgical Science》 2025年第1期26-33,共8页
Introduction: Childbirth on a scarred uterus is a major issue for health centers, especially peripheral, due to the major obstetric risks it presents. The objectives were to evaluate the frequency, route of delivery a... Introduction: Childbirth on a scarred uterus is a major issue for health centers, especially peripheral, due to the major obstetric risks it presents. The objectives were to evaluate the frequency, route of delivery and maternal-fetal prognosis of this type of delivery at csref of Kolondiéba. Materials and Methods: This was a retrospective cross-sectional study for one year (1 January 2023-31 December 2023). All patients admitted to the maternity ward of the center with at least one uterine scar and treated in the center were included. We extracted data from partograms, OR records, birth records and obstetric records. Input was done on Excel 2010 and analysis on SPSS.23. Results: The frequency of scarring uterus was 16.8% (217/1285 births). The average age was 27. Pauciparous were most represented (59%). Patients were received from community health centers (44.7%). Prenatal consultation sessions (1 - 3 sessions) were performed at (64.9%). Uterine scars were obstetric in (99%). The cesarean section was performed immediately in (59.4%), it was prophylactic in 17%. The uterine test was attempted in (25.34%) with (69%) success. We recorded 3.6% uterine ruptures, 8.7% postoperative complications, 5.5% stillbirths and one maternal death (0.46%). Conclusion: Births on a scarred uterus are frequent and associated with a high rate of complications. 展开更多
关键词 Uterus Scar Delivery Kolondiéba Reference Health Center
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Analysis of the Application Effect of Community Health Center Nursing Models in Elderly Health Examinations
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作者 Qingrong Meng 《Journal of Clinical and Nursing Research》 2025年第11期54-60,共7页
Objective: To explore the application effect of optimizing the nursing model in community health centers for elderly health examinations, providing a reference for enhancing the management level of elderly health at t... Objective: To explore the application effect of optimizing the nursing model in community health centers for elderly health examinations, providing a reference for enhancing the management level of elderly health at the grassroots level. Methods: A total of 300 elderly individuals who underwent health examinations at our center from January 2024 to December 2024 were selected as the study subjects. They were randomly divided into a control group and an observation group, with 150 cases in each group. The control group underwent the conventional health examination nursing process, while the observation group adopted an optimized community nursing model, which included stratified education and appointment scheduling before the examination, full-time accompaniment and safety care during the examination, and the establishment of electronic medical records and continuous follow-up after the examination. Differences in health management awareness rates and satisfaction with health examination services between the two groups of elderly individuals were compared. Results: The health management awareness rate in the observation group was 94.67%, significantly higher than that in the control group (78.00%;p < 0.001). The satisfaction rate with health examination services in the observation group was 96.00%, also significantly higher than that in the control group (82.00%;p < 0.001). Conclusion: The optimized community nursing model can effectively enhance the health awareness level and service satisfaction of elderly individuals during health examinations, demonstrating strong practicality and promotion value. It contributes to achieving continuity and precision in grassroots elderly health management. 展开更多
关键词 Community health center Nursing model Elderly health examination Health management Service satisfaction
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The Role of Endoscope Diagnosis and Treatment Center Traceability System in Quality Control of Endoscope Cleaning
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作者 Na Zhao Fengjuan Wang 《Journal of Clinical and Nursing Research》 2025年第9期271-275,共5页
As the cornerstone of sterile instrument maintenance in endoscopy centers,the quality of endoscope cleaning directly impacts hospital infection control effectiveness.The traceability system for endoscopy centers utili... As the cornerstone of sterile instrument maintenance in endoscopy centers,the quality of endoscope cleaning directly impacts hospital infection control effectiveness.The traceability system for endoscopy centers utilizes digital means to document the entire cleaning process,enabling real-time monitoring and precise quality control.This paper analyzes current quality control practices in endoscope cleaning and addresses existing challenges.It explores how traceability systems standardize procedures,enhance monitoring,and improve management efficiency.The study proposes optimization strategies for traceability system implementation,clarifying its core value in endoscope cleaning quality control.These findings provide theoretical foundations and practical guidance for hospitals to refine management of endoscopy centers,ensure diagnostic safety,and reduce infection risks,ultimately advancing endoscope cleaning quality control toward standardized and informatized development. 展开更多
关键词 Endoscopic diagnosis and treatment center Traceability system Endoscope cleaning Quality control Hospital infection prevention and control
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The Effect of Occupational Protection Training on Disinfection Supply Center Personnel on Reducing the Risk of Nosocomial Infection
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作者 Fengjuan Wang Na Zhao 《Journal of Clinical and Nursing Research》 2025年第9期304-308,共5页
As the core department in medical institutions responsible for cleaning,disinfecting,sterilizing,and supplying reusable medical devices,instruments,and items,the quality of work in the disinfection supply center direc... As the core department in medical institutions responsible for cleaning,disinfecting,sterilizing,and supplying reusable medical devices,instruments,and items,the quality of work in the disinfection supply center directly impacts medical safety and infection control effectiveness.Professional protective training for personnel is crucial to ensure operational quality in this department.Systematic training enhances staff awareness of occupational exposure risks,standardizes protective measures in procedures,reduces cross-infection risks caused by improper operations,and ultimately lowers infection transmission risks.This paper analyzes the core content,implementation approaches,and practical role of professional protective training for disinfection supply center personnel in infection control.It aims to clarify the significant value of such training,providing references for medical institutions to optimize disinfection center management and strengthen infection control systems,thereby contributing to improved overall medical safety standards. 展开更多
关键词 Disinfection supply center Occupational protection training Hospital infection risk Medical safety Operation specification
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AN INEXACT SYMMETRIC PROXIMAL ADMM WITH CONVEX COMBINATION PROXIMAL CENTERS FOR SEPARABLE CONVEX PROGRAMMING
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作者 Xianke TANG Jinbao JIAN +1 位作者 Jianghua YIN Xianzhen JIANG 《Acta Mathematica Scientia》 2025年第4期1701-1722,共22页
In this paper,we develop an inexact symmetric proximal alternating direction method of multipliers(ISPADMM)with two convex combinations(ISPADMM-tcc)for solving two-block separable convex optimization problems with lin... In this paper,we develop an inexact symmetric proximal alternating direction method of multipliers(ISPADMM)with two convex combinations(ISPADMM-tcc)for solving two-block separable convex optimization problems with linear equality constraints.Specifically,the convex combination technique is incorporated into the proximal centers of both subproblems.We then approximately solve these two subproblems based on relative error criteria.The global convergence,and O(1/N)ergodic sublinear convergence rate measured by the function value residual and constraint violation are established under some mild conditions,where N denotes the number of iterations.Finally,numerical experiments on solving the l1-regularized analysis sparse recovery and the elastic net regularization regression problems illustrate the feasibility and effectiveness of the proposed method. 展开更多
关键词 sparable convex optimization convex combination proximal centers relative error criterion ISPADMM ergodic sublinear convergence rate
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Prognostic Factors for Operated Traumatic Brain Injury at the Yaounde Emergency Center
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作者 Ernestine Renée Bikono Atangana Alain Jibia +5 位作者 Serge Rawlings Ngouatna Reid Achu Darius Kenzo Temgoua Herve Mfouapon Ewane Casimir Fankem Vincent de Paul Djientcheu 《Open Journal of Modern Neurosurgery》 2025年第1期88-95,共8页
Introduction: Head injuries constitute a public health problem in Cameroon and everywhere else in the world. They represent 23% of admissions to the Yaounde emergency center (CURY), which is a center exclusively dedic... Introduction: Head injuries constitute a public health problem in Cameroon and everywhere else in the world. They represent 23% of admissions to the Yaounde emergency center (CURY), which is a center exclusively dedicated, since 2014, to emergency care in Yaounde. In the management of trauma brain injuries at CURY, several are operated on. However, to date, no evaluation of these operated patients has yet been made. Goals: The objective of this study was to highlight the prognostic factors in patients operated for TBI at CURY. Methodology: We conducted a descriptive study whose data collection was done retrospectively over 2 years (01 January 2021 to 31 December 2022) at CURY. Data was collected from the registers of operative reports. Results: We enrolled 105 medical reports of patients who were victims of TBI operated on. The male gender predominated with a sex ratio of 3/1. The average age of the patients was 37.5 ± 18.83 years. Public road accidents were the leading cause of TBI in 75.2% of cases. The means of transport of the victims were mostly non-medical 97.1%. 45.7% of patients were admitted in less than 6 hours following injury. The initial clinical evaluation found 45.8% of patients with a Glasgow Coma Score (GCS) between [14, 15], and 13.2% of patients had a GCS 8. The indications for surgery were extradural hematoma (30%), followed by acute subdural hematoma (24%). The major complication was postoperative infection (25%). The mortality rate of the series was 7.9%. Poor prognostic factors were the depth of the coma on admission, advanced age and postoperative complications. Conclusion: The results of this study suggest that most patients operated on for TBI at CURY had a favorable outcome. The poor prognostic factors were the depth of the coma on admission, advanced age, postoperative complications and comorbidities. 展开更多
关键词 Operated TBI PROGNOSIS Yaounde Emergency Center
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