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Character Analysis of Oates'Wonderland--The Source of Tragedy:Wil-lard Harte
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作者 刘丽红 《海外英语》 2018年第9期175-176,共2页
Oates is regarded as one of the most prolific modern American writers.Wonderland is one of her most representative novels, which is regarded as a"family tragedy"novel.It is Willard Harte who begins the most ... Oates is regarded as one of the most prolific modern American writers.Wonderland is one of her most representative novels, which is regarded as a"family tragedy"novel.It is Willard Harte who begins the most horrible family tragedy. The author of the paper tries to analyze the desperate destroyer, Willard Harte, and his motive for the killing expecting to attract more Chinese scholars' attention. 展开更多
关键词 oates WONDERLAND TRAGEDY
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Analysis on Oates' Tragic Artistic Point of View in Wonderland
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作者 刘丽红 《疯狂英语(理论版)》 2018年第3期172-173,共2页
Oates is reputed as a representative writer of"psychological realism".Wonderland is one of her most representative novels of in the 1970 s.The author of the thesis tentatively analyzes Oates' tragic arti... Oates is reputed as a representative writer of"psychological realism".Wonderland is one of her most representative novels of in the 1970 s.The author of the thesis tentatively analyzes Oates' tragic artistic point of view,hoping to contribute to the studies on Oates' artistic point of view and her works. 展开更多
关键词 oates artistic point of view psychological realism
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General Introduction to Joyce Carol Oates' Literary Career
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作者 刘丽红 《海外英语》 2018年第10期180-181,共2页
Joyce Carol Oates is one of the most productive writers in American literary circles,reputed as a representative writer of"psychological realism".For nearly 50 years,her works are various genres with profoun... Joyce Carol Oates is one of the most productive writers in American literary circles,reputed as a representative writer of"psychological realism".For nearly 50 years,her works are various genres with profound theme,which get a lot of attention by Chinese and foreign academic circles.The author of the paper introduces Oates to readers and analyzes her literary career in detail expecting to attract more Chinese scholars’attention. 展开更多
关键词 Joyce Carol oates Psychological Realism Literary Career
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Production of Meaning--A Critical Study of Narrative Ethics in Joyce Carol Oates's New Century Fiction
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作者 Liu Xiaoyan 《疯狂英语(理论版)》 2018年第2期178-181,190,共5页
Narrative ethics shows multiple representing methods in Oates' s novels,including not only a variety of characters' narrative construction processes of self-narrative,other-narrative and social narrative but a... Narrative ethics shows multiple representing methods in Oates' s novels,including not only a variety of characters' narrative construction processes of self-narrative,other-narrative and social narrative but also the meaninggenerating process of the characters' interpretation and reorganization of the external and internal world.In so doing,the characters are able to obtain personal identity,the ethical communication and existence transcendence by the way of narrative. 展开更多
关键词 Joyce Carol oates narrative ethics production of meaning
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Poverty and Violence in Joyce Carol Oates's Fiction
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作者 Jing Wang 《Language and Semiotic Studies》 2018年第4期130-139,共10页
Joyce Carol Oates, one of America's most prestigious and prolific contemporary writers, favors depicting the dark side of America, especially poverty and violence. This paper studies Oates' s depiction of abje... Joyce Carol Oates, one of America's most prestigious and prolific contemporary writers, favors depicting the dark side of America, especially poverty and violence. This paper studies Oates' s depiction of abject poverty, of those most powerless and vulnerable and those who cannot attain the food, water, and shelter necessary for survival during the Great Depression. Then, relative poverty after the Depression is also discussed. Oates keenly observes "the invisible poor" in the affluent American society and gives voice to those relatively deprived and marginal. By analyzing the relationship between poverty and violence, this paper concludes that Oates tries to awaken readers to the social malaise and the real life of the downtrodden and at the same time calls for passion and life's energy. The obsession with the darkest sides of the society is not a sick fondness but reflects the social conscience of Oates as a serious writer. 展开更多
关键词 abject POVERTY relative POVERTY VIOLENCE JOYCE CAROL oates
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中国经济高水平对外开放的统计测度与动态演进特征
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作者 文文 顾成敏 《统计与决策》 北大核心 2025年第19期112-117,共6页
文章基于中国30个省份的面板数据,采用熵值法测度2014—2023年中国经济高水平对外开放综合指数,并探究其区域分布和动态演进特征。研究结果表明,在样本期内,中国经济高水平对外开放综合指数整体呈稳步上升态势。各地区经济高水平对外开... 文章基于中国30个省份的面板数据,采用熵值法测度2014—2023年中国经济高水平对外开放综合指数,并探究其区域分布和动态演进特征。研究结果表明,在样本期内,中国经济高水平对外开放综合指数整体呈稳步上升态势。各地区经济高水平对外开放综合指数存在较大差异,表现为东部地区>中部地区>西部地区。中国经济高水平对外开放的整体重心向西南方向转移,总体存在较大差异,且差异主要来源于区域内差异。中国经济高水平对外开放综合指数整体动态演进趋势向好且类型较为稳定,通常不会出现跨层级跃升现象,且向上转移的概率高于向下转移的概率。区域高水平开放、金融高水平开放、贸易高水平开放等因素是中国经济高水平对外开放的主要障碍因子。因此,要持续推进经济高水平对外开放,进行经济对外开放差异化布局,纵深推进各省份协同参与国际经济活动,助力开放型世界经济建设。 展开更多
关键词 经济高水平对外开放 标准差椭圆法 新发展格局 单因素轮换OAT法
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Gas production characteristics of oats and tritical silages and techniques for reducing gas emissions 被引量:1
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作者 Jing Tian Rong Tian +2 位作者 Juanyan Wu Liying Huang Jianguo Zhang 《Journal of Integrative Agriculture》 2025年第4期1246-1258,共13页
Greenhouse gas(GHG)production during ensiling not only causes the nutrient losses of silage but also promotes climate warming.However,there is little information on the production of GHG and strategies for mitigating ... Greenhouse gas(GHG)production during ensiling not only causes the nutrient losses of silage but also promotes climate warming.However,there is little information on the production of GHG and strategies for mitigating GHG emissions during ensiling.This work aimed to study the gas production characteristics and techniques for reducing gas emissions during ensiling.Oats and triticale,with Lactiplantibacillus plantarum(LP)or corn meal(CM)addition,were ensiled.The cumulative gas volume rapidly increased and reached to the peak within the first 9 d of ensiling for both forage crops.The highest cumulative gas volume of triticale silage was twice as much as that of oats silage.Triticale silage produced lower carbon dioxide(CO_(2))concentration,higher methane(CH_(4))and nitrous oxide(N_(2)O)concentrations than oats silage within the 28 d of ensiling.Adding LP or CM significantly improved the fermentation quality and decreased the gas volume and GHG concentrations of 2 silages on d 56(except CH_(4)of triticale).At the early stage of ensiling,more Enterobacter,Lactococcus and Leuconostoc related to gas production were observed,and adding LP increased the abundance of Lactobacillus and decreased the abundance of bacteria like Kosakonia,Pantoea,Enterobacter and Lactococcus positively correlated with gas volume,CO_(2)and N_(2)O concentrations.These results suggest that gas formation during ensiling mainly occurs in the first 9 d.Adding LP or CM can significantly improve the fermentation quality and decrease the gas volume.This would benefit to reducing GHG emissions in silage production. 展开更多
关键词 bacterial community ENSILING fermentation quality greenhouse gas OATS TRITICALE
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Dual-action fermented oats(Avena sativa L.):Anti-inflammatory and skin barrier restoration
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作者 Manman Liu Lina Wang +6 位作者 Yue Li Ping Zhang Chuyang Wang Yuxuan Wu Yuyan Chen Hu Huang Xiang Li 《Journal of Dermatologic Science and Cosmetic Technology》 2025年第3期25-36,共12页
Objective:When the skin is exposed to external stimuli such as ultraviolet radiation,it can lead to dryness and sensitivity,highlighting the importance of skincare.Maintaining skin homeostasis for healthy complexion r... Objective:When the skin is exposed to external stimuli such as ultraviolet radiation,it can lead to dryness and sensitivity,highlighting the importance of skincare.Maintaining skin homeostasis for healthy complexion requires not only controlling the inflammatory response,but also protecting the skin barrier.The study aimed to explore the potential of fermented oats(FO)as an innovative ingredient in skin care products,focusing on its capacity to alleviate inflammation and repair the skin barrier.Methods:The present study aimed to characterize the active composition and skin care effects of FO,which underwent enzymatic hydrolysis followed by fermentation with Saccharomyces cerevisiae.To evaluate the antiinflammatory properties of FO,we performed experiments to inhibit TNF-α/TNFR1 binding,nitric oxide(NO)release in RAW264.7 macrophage cells and neutrophil aggregation in zebrafish embryos.Additionally,the study evaluated the secretion of inflammatory factors,skin barrier function and moisturizing effects using a UVBirradiated skin model as a surrogate for photodamaged skin.Results:This study reveals that the fermentation process involving Saccharomyces cerevisiae significantly enhances amino acids and their derivatives in FO.Specifically,β-glucan,total protein,and flavonoids in FO increased by 14.78%,39.13%,and 600%,respectively.FO achieved a 79.87%inhibition rate of TNF-α/TNFR1 binding.It also reduced lipopolysaccharide(LPS)-induced NO release in RAW264.7 cells and inhibited neutrophil recruitment in zebrafish embryos.In a capsaicin(CAP)-stimulated skin model,3.5%FO suppressed TRPV1 expression.In a UVB-irradiated 3D skin model,FO decreased the secretion of pro-inflammatory cytokines(IL-1α,IL-6,COX2,NF-κB)and significantly upregulated loricrin(128.57%),filaggrin(336.36%),transglutaminase 1(70.97%),and caspase-14(217.65%).Additionally,FO enhanced moisturizing efficacy by increasing skin moisture content and AQP3 levels.Conclusion:As a novel fermentation ingredient,FO inhibits the expression of inflammatory factors,improves skin tissue morphology,and enhances hydration,achieving multi-faceted soothing and repairing effects.These findings suggest that Saccharomyces cerevisiae-fermented oat extracts hold promise as an innovative ingredient with anti-inflammatory and skin-protective benefits. 展开更多
关键词 OATS MICROBIOLOGY FERMENTATION Soothing Skin barrier
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Redo testicular sperm aspiration(TESA)in men with severe oligoasthenoteratozoos permia(OAT)and obstructive azoospermia(OA)
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作者 Abdullah Alahmari Rabea Akram +2 位作者 Michael Maalouf Abdulelah Elsayed Armand Zini 《The Canadian Journal of Urology》 2025年第4期317-323,共7页
Background:Testicular sperm aspiration(TESA)is a minimally invasive testicular sperm retrieval technique that has been utilized in the treatment of male factor infertility.We sought to evaluate sperm retrieval outcome... Background:Testicular sperm aspiration(TESA)is a minimally invasive testicular sperm retrieval technique that has been utilized in the treatment of male factor infertility.We sought to evaluate sperm retrieval outcomes of primary and redo TESA in men with severe oligoasthenoteratozoospermia(OAT)and obstructive azoospermia(OA).Methods:This is a retrospective analysis of consecutive TESAs(primary and redo)for men with severe OAT and OA performed between January 2011 and August 2022 at a high-volume infertility center.We compared TESA outcomes in men with severe OAT to those with OA and compared outcomes of men who underwent primary and redo TESA on the same testicular unit.Results:439 TESAs(366 primary and 73 redo)in men with severe OAT(n=133)and OA(n=306)were included.Men with OA had significantly higher sperm retrieval rate(SRR)and motile SRR compared to men with severe OAT(99%vs.95%and 98%vs.83%,respectively,p<0.05).The requirement for multiple biopsies and the total number of aspirates were significantly lower in men with OA compared to those with severe OAT(15%vs.32%and 1.2±0.5 vs.1.4±0.7,respectively,p<0.05).In both groups,SRR,motile SRR,the requirement for multiple biopsies,and the total number of aspirates were not significantly different in primary compared to redo cases.Conclusion:Our data demonstrate that TESA retrieval rates are significantly higher in men with OA compared to those with severe OAT.The data also demonstrate that a redo TESA in these men is as effective as a primary TESA,suggesting that areas of active spermatogenesis are preserved 6 months after TESA. 展开更多
关键词 male infertility sperm retrieval TESA AZOOSPERMIA OLIGOZOOSPERMIA OAT
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OAT电机的优化设计及其对高效能驱动系统的影响研究
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作者 刘济衔 马学绕 何杰 《中国设备工程》 2025年第22期111-113,共3页
随着工业和交通领域对高效能驱动系统的需求日益增加,OAT电机因其优越的性能和广泛的应用潜力成为研究的热点。本文主要研究了OAT电机的优化设计及其对高效能驱动系统的影响,针对OAT电机的关键参数进行优化,采用有限元分析和多目标优化... 随着工业和交通领域对高效能驱动系统的需求日益增加,OAT电机因其优越的性能和广泛的应用潜力成为研究的热点。本文主要研究了OAT电机的优化设计及其对高效能驱动系统的影响,针对OAT电机的关键参数进行优化,采用有限元分析和多目标优化算法,提高了电机的能效和运行稳定性。通过实验验证,优化后的OAT电机在多种工况下表现出显著的性能提升,验证了其在高效能驱动系统中的应用前景。 展开更多
关键词 OAT电机 优化设计 驱动系统 效率提升 电磁损耗 温升控制
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Preliminary Study:Furfural Production from Oat Husks via Phosphorus-Containing Catalysts Catalyzed Hydrothermal Pretreatment in the Context of Biorefinery
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作者 Prans Brazdausks Maris Puke Guntis Sosins 《Journal of Renewable Materials》 2025年第4期719-730,共12页
Oat husks,a byproduct of oat milling operations with limited economic value,present a promising feedstock for biorefinery processes due to their chemical composition.This study investigates the conversion of C5 carboh... Oat husks,a byproduct of oat milling operations with limited economic value,present a promising feedstock for biorefinery processes due to their chemical composition.This study investigates the conversion of C5 carbohydrates in oat husks into furfural through hydrothermal pretreatment using various phosphate-based catalysts,including H_(3)PO_(4),NH_(4)H_(2)PO_(4),NaH_(2)PO_(4),KH_(2)PO_(4),K_(2)HPO_(4) and K_(3)PO_(4) as catalyst.The catalysts’effectiveness in promoting furfural production was evaluated under identical hydrothermal conditions(treatment time for 60 min at a constant temperature of 170℃ and a catalyst amount).Continuous water steam was used to strip furfural from the reaction zone and minimize its degradation.Results indicated that H_(3)PO_(4) was the most effective catalyst,achieving a furfural yield of 13.99 wt.%,which corresponds to approximately 57%of the theoretical yield.NH4H2PO4 also showed moderate effectiveness,while sodium and potassium phosphate salts were significantly less effective.A scanning electron microscope analysis shows that catalysts with lower pH may disrupt the oat husks external layer thus providing a higher C5 carbohydrates conversion rate into furfural.The chemical complexity of oat husk contributes to side reactions between its carbohydrates and lignin during the hydrothermal treatment.This results in an increase in acid-insoluble lignin and inorganic matter in the oat husk lignocellulosic residue,which can reduce the effectiveness of further cellulose saccharification by enzymatic hydrolysis. 展开更多
关键词 Oat husks hydrothermal pretreatment furfural BIOREFINERY
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Effects of oatβ-glucan-based prebiotic blended formulas on defecation and gut microbiota in Chinese adults:a randomized clinical trial
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作者 Aiqi Li Lei Jin +13 位作者 Hui Xia Meiyuan Feng Xirui Zhou Yifang Chu Feng Liu Lanxing Jia Ximin Chen Dengfeng Xu Shanjie Ma Xiaofan Xu Xinyu Wang Xiaoqing Li Guiju Sun Liegang Liu 《Food Science and Human Wellness》 2025年第6期2126-2135,共10页
Digestive health is important for overall well-being,but gut health problems are common in the Chinese population.The objective of this study was to investigate the effects of oatβ-glucan-based prebiotic blended form... Digestive health is important for overall well-being,but gut health problems are common in the Chinese population.The objective of this study was to investigate the effects of oatβ-glucan-based prebiotic blended formulas in humans on digestive health by assessing defecation frequency,defecation symptoms,stool quality,self-reported digestive feelings,defecation satisfaction,and gut bacteria.A parallel,randomized,double-blind,controlled trial was conducted in 168 eligible adults randomized to 3 groups for 14 days:Intervention groups A and B received 2 different doses of oatβ-glucan-based prebiotic blended formulas and a Control group received oatβ-glucan mixed with hydroxypropylmethyl-cellulose and microcrystalline cellulose.Participants completed a defecation diary and Bristol stool chart daily and digestive system questionnaires weekly.Fecal samples were collected on day 0 and day 14 to evaluate gut bacteria using 16S rDNA analysis.Both formulas improved defecation frequency,stool quality,defecation symptoms,defecation satisfaction,and on digestive health of human,compared with baseline(P<0.05).Both formulas led to increased quantities of Bifidobacterium and Akkermansia bacteria,compared to control,on day 14.This study therefore demonstrated the beneficial effects of oatβ-glucan-based prebiotic blended formulas on gut health in generally healthy Chinese adults.These formulas are a feasible nutritional strategy for digestive health. 展开更多
关键词 OAT Β-GLUCAN Prebiotic Defecation frequency Stool quality Digestive health Gut microbiota
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Release profile and metabolism of bound polyphenols of oat bran during in vitro simulated gastrointestinal digestion and colonic fermentation
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作者 Yu Zhang Bing Bai +3 位作者 Kai Huang Sen Li Hongwei Cao Xiao Guan 《Food Science and Human Wellness》 2025年第4期1557-1565,共9页
Whole-grain foods have attracted emerging attention due to their health benefits.Whole grains are rich in bound polyphenols(BPs)linked with dietary fibers,which is largely underestimated compared with free polyphenols... Whole-grain foods have attracted emerging attention due to their health benefits.Whole grains are rich in bound polyphenols(BPs)linked with dietary fibers,which is largely underestimated compared with free polyphenols.In this study,in vitro simulated gastrointestinal digestion and colonic fermentation models were used to study the release profile and metabolism of BPs of oat bran.Significantly higher level of BPs was released during in vitro colon fermentation(3.05 mg GAE/g)than in gastrointestinal digestion(0.54 mg GAE/g).Five polyphenols were detected via LC-MS and their possible conversion pathways were speculated.Released BPs exhibited chemical antioxidant capacity.16S rRNA sequencing further revealed that Clostridium butyricum,Enterococcus faecalis,Bacteroides acidifaciens were the key bacteria involved in the release of BPs,and this was verified by whole-cell transformation.Our results helped to explain the possible mechanism of the health benefits of BPs in whole grains. 展开更多
关键词 Oat bran Bound polyphenols In vitro digestion Colonic fermentation Ferulic acid
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OAT电机在智能控制系统中的应用与优化研究
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作者 刘济衔 马学绕 何杰 《中国设备工程》 2025年第23期28-30,共3页
随着智能控制技术的快速发展,OAT电机因其高效性、响应性和广泛的应用前景,成为智能控制系统中的关键组成部分。本文深入研究了OAT电机在智能控制系统中的应用与优化设计,分析了OAT电机的基本特性与工作原理,并探讨了智能控制系统的相... 随着智能控制技术的快速发展,OAT电机因其高效性、响应性和广泛的应用前景,成为智能控制系统中的关键组成部分。本文深入研究了OAT电机在智能控制系统中的应用与优化设计,分析了OAT电机的基本特性与工作原理,并探讨了智能控制系统的相关理论与应用现状,讨论了OAT电机智能控制系统的优化策略,旨在提升电机在不同工况下的性能。通过实验验证,优化后的OAT电机表现出了显著的性能提升。 展开更多
关键词 OAT电机 智能控制系统 优化设计 控制策略 能效提升
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Clinical characteristics,therapeutic strategies,and outcomes in elderly patients on oral anticoagulant therapy undergoing percutaneous coronary interventions:post-hoc analysis of the PERSEO Registry
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作者 Simona Minardi Salvatore De Rosa +9 位作者 NicolòSalvi Giuseppe Andò Giuseppe Talanas ClaudioD’angelo Carolina Moretti Tiziano Maria Mazza Bernardo Cortese Giuseppe Musumeci Andrea Rubboli Alessandro Sciahbasi 《Journal of Geriatric Cardiology》 2025年第8期701-708,共8页
BACKGROUND Antithrombotic strategies after percutaneous coronary interventions(PCI)in elderly patients on oral anticoagulant therapy(OAT)are debated due to the balance between ischemic and bleeding risks.Recent guidel... BACKGROUND Antithrombotic strategies after percutaneous coronary interventions(PCI)in elderly patients on oral anticoagulant therapy(OAT)are debated due to the balance between ischemic and bleeding risks.Recent guidelines recommend early transitioning from triple antithrombotic therapy to dual antithrombotic therapy,but there are limited data on elderly patients.METHODS We performed a post-hoc age-specific analysis of the PERSEO Registry population aimed to compare clinical features,therapeutic strategies,and outcomes of individuals aged≥80 years and<80 years who were on OAT and underwent PCI with stent.The primary endpoint was net adverse clinical events at 1-year follow-up.Secondary endpoints included major adverse cardiac and cerebral events(MACCE),major bleeding[Bleeding Academic Research Consortium(BARC)type 3–5],and clinically relevant bleeding(BARC type 2-5).RESULTS Among the 1234 patients enrolled,31%of patients were aged≥80 years(84±3 years,76% males).Compared to younger patients,elderly patients had higher rates of comorbidities such as hypertension,anaemia or chronic kidney disease,and atrial fibrillation was the leading indication for OAT.Elderly patients were more often discharged on dual antithrombotic therapy(23%)compared to younger patients(13%)(P<0.0001).They experienced higher net adverse clinical events(38%vs.21%,P<0.001),MACCE(24%vs.12%,P<0.001),as well as higher bleeding rates.Specifically,rates of major bleeding(9%vs.6%,P=0.026),and clinically relevant bleeding(21%vs.12%,P<0.001)were significantly higher in elderly patients.CONCLUSIONS Elderly patients on OAT undergoing PCI are a particular frail population with higher risk of MACCE and bleeding compared to younger patients despite a less aggressive antithrombotic therapy. 展开更多
关键词 oral anticoagulant therapy oat oral anticoagulant therapy elderly patients percutaneous coronary interventions pci percutaneous coronary interventions dual antithrombotic therapybut clinical characteristics perseo registry population
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An Improved Animated Oat Optimization Algorithm with Particle Swarm Optimization for Dry Eye Disease Classification
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作者 Essam H.Houssein Eman Saber Nagwan Abdel Samee 《Computer Modeling in Engineering & Sciences》 2025年第8期2445-2480,共36页
Thediagnosis of Dry EyeDisease(DED),however,usually depends on clinical information and complex,high-dimensional datasets.To improve the performance of classification models,this paper proposes a Computer Aided Design... Thediagnosis of Dry EyeDisease(DED),however,usually depends on clinical information and complex,high-dimensional datasets.To improve the performance of classification models,this paper proposes a Computer Aided Design(CAD)system that presents a new method for DED classification called(IAOO-PSO),which is a powerful Feature Selection technique(FS)that integrates with Opposition-Based Learning(OBL)and Particle Swarm Optimization(PSO).We improve the speed of convergence with the PSO algorithmand the exploration with the IAOO algorithm.The IAOO is demonstrated to possess superior global optimization capabilities,as validated on the IEEE Congress on Evolutionary Computation 2022(CEC’22)benchmark suite and compared with seven Metaheuristic(MH)algorithms.Additionally,an IAOO-PSO model based on Support Vector Machines(SVMs)classifier is proposed for FS and classification,where the IAOO-PSO is used to identify the most relevant features.This model was applied to the DED dataset comprising 20,000 cases and 26 features,achieving a high classification accuracy of 99.8%,which significantly outperforms other optimization algorithms.The experimental results demonstrate the reliability,success,and efficiency of the IAOO-PSO technique for both FS and classification in the detection of DED. 展开更多
关键词 Feature selection(FS) machine learning(ML) animated oat optimization algorithm(AOO) dry eye disease(DED) oppositional-based learning(OBL) particle swarm optimization(PSO)
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论财产税的基本逻辑 被引量:2
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作者 石子印 《财经理论与实践》 CSSCI 北大核心 2009年第2期67-70,108,共5页
基于Tiebout—Oates—Hamilton模型认为财产税具有受益税性质,但美国近年来对财产税采取种种限制和减免举措,使财产税在地方政府收入中所占比例逐渐缩小。分析这种理论与实践的偏离,可以得到财产税的基本逻辑,即仅在小区域内适用;现实... 基于Tiebout—Oates—Hamilton模型认为财产税具有受益税性质,但美国近年来对财产税采取种种限制和减免举措,使财产税在地方政府收入中所占比例逐渐缩小。分析这种理论与实践的偏离,可以得到财产税的基本逻辑,即仅在小区域内适用;现实效率的获得需要公众呼吁为前提;实质上是以居民房产价值为分摊原则的一种费;具有内在的不公平性;占纳税人收入比例不大;部分辖区需要政府间的拨款补助。因此,我国在开征财产税时,应至多将其设置在县级政府征收使用,进一步完善公众的呼吁机制,并将税率控制在适当范围,同时配合有效的政府间转移支付。 展开更多
关键词 Tiebout—oates—Hamilton模型 财产税限制 受益税 公众呼吁
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穿山龙总皂苷对高尿酸血症的降尿酸及细胞抗炎作用研究 被引量:42
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作者 周琦 张翀 +1 位作者 于栋华 刘树民 《中华中医药杂志》 CAS CSCD 北大核心 2013年第5期1444-1448,共5页
目的:探讨穿山龙总皂苷对高尿酸血症的降尿酸作用并通过体外实验验证其抗炎作用。方法:将小鼠分为正常组、模型组、别嘌呤醇组和穿山龙总皂苷高中低剂量组。观察小鼠血清尿酸值(SUA),黄嘌呤氧化酶(XOD)和腺苷脱氨酶(ADA)活性。进一步检... 目的:探讨穿山龙总皂苷对高尿酸血症的降尿酸作用并通过体外实验验证其抗炎作用。方法:将小鼠分为正常组、模型组、别嘌呤醇组和穿山龙总皂苷高中低剂量组。观察小鼠血清尿酸值(SUA),黄嘌呤氧化酶(XOD)和腺苷脱氨酶(ADA)活性。进一步检测肾组织阴离子转运体1(OAT1)的mRNA表达情况。提取人多形核白细胞(PMNL),药物干预后用微晶型尿酸钠(MSU)进行刺激,观察各组β-葡萄糖醛酸酶(β-GD)和乳酸脱氢酶(LDH)的释放率。结果:穿山龙总皂苷高、中、低(600、300、60mg/kg)剂量均可显著降低高尿酸血症小鼠血清SUA水平,并降低血清XOD和ADA活性(P<0.05);同时可回调OAT1 mRNA的表达量(P<0.05)。穿山龙总皂苷高、中、低(200、100、50μg/mL)剂量均可显著抑制与MSU进行孵育的多形核白细胞(PMNL)中β-GD和LDH的释放率(P<0.05)。结论:穿山龙总皂苷具有降高尿酸血症血尿酸和抗炎作用,其降尿酸的机制可能是通过抑制尿酸生成并促进尿酸的排泄而实现的。 展开更多
关键词 穿山龙总皂苷 高尿酸血症 痛风性关节炎 OAT1 人多形核白细胞
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WEP模型全局参数敏感性分析及其在汉江上游流域的应用 被引量:14
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作者 雷晓辉 田雨 +3 位作者 贾仰文 蒋云钟 王浩 刘清娥 《水文》 CSCD 北大核心 2010年第6期14-18,41,共6页
水文模型敏感性分析是用来确定控制模型效率关键参数非常有效的过滤工具之一,并可以帮助理解模型结构,乃至发现模型的结构缺陷,从而有可能改善模型结构。本文通过将全局敏感性分析方法的LH-OAT方法应用到WEP-L模型,并在汉江上游向家坪... 水文模型敏感性分析是用来确定控制模型效率关键参数非常有效的过滤工具之一,并可以帮助理解模型结构,乃至发现模型的结构缺陷,从而有可能改善模型结构。本文通过将全局敏感性分析方法的LH-OAT方法应用到WEP-L模型,并在汉江上游向家坪以上流域进行了成功应用。研究发现,通过LH-OAT方法分析,对于汉江上游向家坪以上流域,河道曼宁糙率和坡面曼宁糙率是影响Nash效率系数最重要的参数。通过对这两个参数的手动调参,模拟的日Nash效率系数从0.35提高到0.75。 展开更多
关键词 分布式水文模型 LH—OAT WEP 敏感性分析
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基于OAT的空间多准则决策中的权重敏感性分析 被引量:12
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作者 於家 陈芸 +3 位作者 刘静怡 吴健平 付晶 徐慧 《资源科学》 CSSCI CSCD 北大核心 2014年第9期1870-1879,共10页
在空间多准则决策中,敏感性分析是衡量决策过程中不确定性的重要方法。层次分析法(AHP)是常用的空间多准则决策方法之一,它的决策结果很大程度上受其成对比较矩阵生成的准则权重的影响,如何量化评估这一影响的大小、如何实现空间多准则... 在空间多准则决策中,敏感性分析是衡量决策过程中不确定性的重要方法。层次分析法(AHP)是常用的空间多准则决策方法之一,它的决策结果很大程度上受其成对比较矩阵生成的准则权重的影响,如何量化评估这一影响的大小、如何实现空间多准则决策的可视化,一直是其中的难点。本研究在AHP实现空间多准则决策的过程中,利用OAT(One-at-a-Time)方法依次改变成对比较矩阵元素值来调整权重,从而量化地、可视化地表示决策结果对这些元素值改变的敏感程度。这种新方法能够执行自定义范围内的定量化的动态变化分析,测度不同权重分配情况下,空间决策结果的敏感性;通过设计的敏感性分析量化指标评判敏感性的相对强弱,锁定成对比较矩阵中更需斟酌的元素值;并在GIS平台支持下,实现可视化的空间数据统计及分析。本研究还以嘉兴市北部地区的旅游开发适宜性评价作为范例,来说明该分析方法在空间多准则决策中的可行性。案例分析中,通过对五个准则图层以及相关的成对比较矩阵的分析,利用统计表格、模拟结果图和汇总图表等多种形式,确定了矩阵中敏感性最高的元素,并完成了元素值的最终设定。该方法深入浅出地帮助相关决策者和研究人员更好地理解权重敏感性,从而在空间多准则决策过程中降低不确定性,进行更有效的测度。 展开更多
关键词 成对比较矩阵 不确定性 单因素轮换(OAT) 多准则决策 权重 敏感性分析 地理信息系统
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