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对流层臭氧污染对植物生理影响的研究进展

地球与行星物理论评（中英文） 2024年第2期55卷 195-204页

作者：黎武标王永达姜文英中国科学院地质与地球物理研究所新生代地质与环境重点实验室北京100029 中国科学院大学北京100049

对流层臭氧是一种存在于近地面、对动植物有害的光化学污染物,定量评估和研究其对植物生理的影响和机制对保障全球粮食安全和人体健康具有至关重要的作用.由于过去三十年的快速工业化和城市化,对流层臭氧浓度正以每年约0.5%~2%的速度上... 详细信息

对流层臭氧是一种存在于近地面、对动植物有害的光化学污染物,定量评估和研究其对植物生理的影响和机制对保障全球粮食安全和人体健康具有至关重要的作用.由于过去三十年的快速工业化和城市化,对流层臭氧浓度正以每年约0.5%~2%的速度上升.针对当前臭氧污染加剧的情况,根据前人的基础理论研究和实验探索,本文就臭氧对植物表观、花粉和光合作用的影响特征及机制进行了总结和分析,得到以下认识:(1)臭氧污染下植物叶片受损、光合速率和固碳能力下降,影响干物质的积累与分配,是造成作物减产的主要原因;(2)臭氧污染导致花粉细胞膜受损,细胞脂质过氧化,改变了过敏原蛋白质的结构,增加了人体呼吸道过敏的风险.受损的化石花粉在沉积物中也有发现,通常与大规模生物灭绝同时期,推测与火山爆发或全球快速变暖导致的臭氧浓度增加有关.这些发现表明应加强自然环境下臭氧对植物生态习性的影响研究,重视植物地下生态过程的影响,开展缓解臭氧对作物影响和耐臭氧品种选育的研究.

关键词：臭氧植物作物产量光合作用花粉结构

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Novel learning framework for optimal multi-object video trajectory tracking

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虚拟现实与智能硬件(中英文) 2023年第5期5卷 422-438页

作者： Siyuan CHEN Xiaowu HU wenying jiang Wen ZHOU Xintao DING School of Computer and Information Anhui Normal UniversityAnhui 241002China

Background With the rapid development of Web3D, virtual reality, and digital twins, virtual trajectories and decision data considerably rely on the analysis and understanding of real video data, particularly in emergency evacuation scenarios. Correctly and effectively evacuating crowds in virtual emergency scenarios are becoming increasingly urgent. One good solution is to extract pedestrian trajectories from videos of emergency situations using a multi-target tracking algorithm and use them to define evacuation procedures. Methods To implement this solution, a trajectory extraction and optimization framework based on multi-target tracking is developed in this study. First, a multi-target tracking algorithm is used to extract and preprocess the trajectory data of the crowd in a video. Then, the trajectory is optimized by combining the trajectory point extraction algorithm and Savitzky-Golay smoothing filtering method. Finally, related experiments are conducted, and the results show that the proposed approach can effectively and accurately extract the trajectories of multiple target objects in real time. Results In addition, the proposed approach retains the real characteristics of the trajectories as much as possible while improving the trajectory smoothing index, which can provide data support for the analysis of pedestrian trajectory data and formulation of personnel evacuation schemes in emergency scenarios. Conclusions Further comparisons with methods used in related studies confirm the feasibility and superiority of the proposed framework.

关键词： Web3D Virtual evacuation Multi-object tracking Trajectory extraction Trajectory optimization

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胆石利通片联合茴三硫治疗胆石症的临床研究

现代药物与临床 2024年第1期39卷 172-176页

作者：汪可刘丽娟李之慧孙青姜文营史金鑫常俊朋聊城市第二人民医院普通外科山东聊城252601 聊城市第二人民医院重症医学科山东聊城252601 聊城市第二人民医院消化内科山东聊城252601 聊城市第二人民医院中医科山东聊城252601

目的探讨胆石利通片联合茴三硫治疗胆石症的临床疗效。方法选取2020年5月—2023年5月聊城市第二人民医院收治的128例胆石症患者,按随机数字表法分为对照组(64例)和治疗组(64例)。对照组口服茴三硫片,1片/次,3次/d。治疗组在对照组的... 详细信息

目的探讨胆石利通片联合茴三硫治疗胆石症的临床疗效。方法选取2020年5月—2023年5月聊城市第二人民医院收治的128例胆石症患者,按随机数字表法分为对照组(64例)和治疗组(64例)。对照组口服茴三硫片,1片/次,3次/d。治疗组在对照组的治疗基础上口服胆石利通片,6片/次,3次/d。两组治疗30 d。观察两组患者临床疗效,比较治疗前后两组患者症状缓解时间,胆囊壁厚度、胆囊容积、生活质量及血清白细胞介素-6(IL-6)、核转录因子-κB(NF-κB)、肿瘤坏死因子-α(TNF-α)和瘦素(LEP)水平。结果治疗后,治疗组总有效率为98.44%,明显高于对照组(84.37%,P<0.05)。治疗后,治疗组恶心呕吐、腹胀、腹泻、右上腹疼痛等缓解时间均明显短于对照组(P<0.05)。治疗后,两组患者胆囊壁厚度、胆囊容积明显降低,而生活质量评分明显升高(P<0.05),且治疗组的胆囊壁厚度、胆囊容积均明显低于对照组,生活质量评分明显高于对照组(P<0.05)。治疗后,两组患者血清炎性因子IL-6、NF-κB、TNF-α、LEP水平明显降低(P<0.05),且治疗组明显低于对照组(P<0.05)。结论茴三硫与胆石利通片协同治疗效果确切,能有效缓解临床症状,改善胆囊功能状态。

关键词：胆石利通片茴三硫片胆石症胆囊壁厚度胆囊容积生活质量瘦素

The roles and regulation of Yes-associated protein 1 in stem cells

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BIOCELL 2023年第1期47卷 33-39页

作者： QING YIN CAIHONG LIU wenying jiang HAIHUI GONG CHUNYUN LI ZUPING HE Hunan Normal University School of Medicine Changsha410013China The Key Laboratory of Model Animals and Stem Cell Biology in Hunan Province Changsha410013China The Manufacture-Based Learning Research Demonstration Center for Human Reproductive Health New Technology of Hunan Normal University Changsha410013China

Yes-associated protein 1(YAP1)is a downstream effector of the Hippo signaling pathway,and it is involved in tumorigenesis,tissue repair,growth,and *** this review,the biological roles and the mechanisms of YAP1 in mediating stem cell fate decisions are discussed,including cell proliferation,differentiation,and *** general,YAP1 promotes the proliferation and differentiation of stem cells,including embryonic stem cells and adult stem *** inhibits apoptosis by binding to the transcription factors,e.g.,transcriptional enhanced associate domain(TEAD),Smad,runt-related transcription factor 1/2,p73,p63,and Erb84,to maintain tissue *** translocalization of YAP1 in cellular nuclei and the phosphorylation in the cytoplasm work as important and unusual events for the activation of ***,YAP1 serves as the crosstalk for the Hippo pathway and other signaling pathways,including the Wnt and Notch *** is highlighted in this review that YAP1 is an essential regulator for stem cells that have significant applications in regenerative medicine and reproductive medicine.

关键词： YAP1 Hippo signaling pathway Stem cells Fate determinations

An Adaptive Time Delay Estimator Based on ETDE Algorithm with Noisy Measurements

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Chinese Journal of Electronics 2017年第4期26卷 760-767页

作者： XIA Wei jiang wenying ZHU Lingfeng School of Electronic Engineering University of Electronic Science and Technology of China

We address the problem of adaptive time delay estimation with noisy measurements. We develop a computationally efficient adaptive time delay estimator based on Explicit time delay estimation(ETDE) algorithm,by applying the unbiased impulse response estimation approach. In this algorithm, a weighted error function is derived, and the time delay is explicitly parameterized in the filter coefficients and iteratively updated directly by utilizing the modified error function. Simulations validate the performance of the proposed algorithm for colored input and low signal-to-noise ratio scenarios.

关键词： Adaptive filter Time delay estimate Noisy measurements Colored input

Carbon isotopic records in paleosols over the Pliocene in Northern China: Implication on vegetation development and Tibetan uplift

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Chinese Science Bulletin 2002年第8期47卷 687-690页

作者： jiang wenying PENG Shuzhen HAO Qingzhen LIU Dongsheng(LIU Tungsheng) Institute of Geology and Geophysics Chinese Academy of SciencesBeijing 100029China Tai’an Teachers College Tai’an 271000China

Carbon isotopic composition of pedogenic carbonate can be used to estimate the proportion of C4 and C3 plants. Here we present carbon isotopic data of carbonate in a red earth section at Xifeng, central Loess Plateau. Results show that C4 vegetation increased in -4.4 Ma B.P., stabilized between 4.0 and 3.0 Ma B.P. The character and timing of C4 expansion on the Loess Plateau are similar, but different with other localities, e.g. Pakistan and Africa, implying that regional climate changes were main factors driving the expansion of C4 plants. This event is comparable in timing with increased aridity evidenced by Xifeng grain size and North Pacific eolian dust records. Therefore we argue that the Pliocene expansion of C4 plants in northern China might have been caused by the increased aridity, which in turn might be related to rapid uplift of the Tibetan Plateau.

关键词： red earth carbon isotope C3/C4 plants aridity Tibetan uplift.

文化振兴背景下地方高校图书馆助力乡村阅读的调查分析——基于广西14个地级市的乡村阅读调查

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梧州学院学报 2023年第4期33卷 77-85页

作者：蒋文英玉林师范学院图书馆广西玉林537000

乡村阅读推广服务是高校图书馆体现社会服务职能的重要形式。基于广西壮族自治区14个地级市的乡村阅读调查,深入分析和探索乡村阅读发展现状、问题及面临的困境,提出发挥地方高校图书馆资源优势,激发乡村居民主体地位及其内在动能,通过... 详细信息

乡村阅读推广服务是高校图书馆体现社会服务职能的重要形式。基于广西壮族自治区14个地级市的乡村阅读调查,深入分析和探索乡村阅读发展现状、问题及面临的困境,提出发挥地方高校图书馆资源优势,激发乡村居民主体地位及其内在动能,通过实施乡村阅读专业人才队伍提质工程、对口帮扶工程、乡村文化特色资源库建设“三大工程”,常态化精准服务乡村阅读高质量发展,为乡村文化振兴新篇章绘就和美乡村新图景。

关键词：乡村阅读推广社会调查文化振兴高校图书馆

EXPLORATION OF THE RELATIONSHIP BETWEEN CULTURE AND LANGUAGE

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Chinese Journal of Applied Linguistics 1999年第1期22卷 37-42页

作者： jiang wenying China Agricultural University

This paper discuses the inseparability of culture and language,presents three new metaphors regardingculture and language,and explores cultural content in specific language items through a survey ofword *** survey has been designed for both Chinese English speakers(CES)and nativeEnglish speakers(NES)(See Appendix).The associated words and expressions are language forms:the free,natural associations involve *** the language forms and the thinking process con-vey *** words and expressions associated by CES and NES are partly similar and partly dif-ferent,because people are by nature alike an d CES and NES have different cultures.

关键词： NES CES EXPLORATION OF THE RELATIONSHIP BETWEEN CULTURE AND LANGUAGE

乌托邦式的道德想象:《罗斯莫庄》中的伦理身份与伦理环境

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外国语文研究 2022年第3期8卷 48-56页

作者：蒋文颖华中师范大学英语系

《罗斯莫庄》是易卜生晚期的象征主义代表剧作,剧中主要人物罗斯莫为了改变现行伦理价值体系、实现自我解放的道德理想,在女主人公吕贝克的影响下背离了他的家族传统和宗教信仰,却又始终无法摆脱对妻子碧爱特之死的道德自责;吕贝克一直... 详细信息

《罗斯莫庄》是易卜生晚期的象征主义代表剧作,剧中主要人物罗斯莫为了改变现行伦理价值体系、实现自我解放的道德理想,在女主人公吕贝克的影响下背离了他的家族传统和宗教信仰,却又始终无法摆脱对妻子碧爱特之死的道德自责;吕贝克一直试图影响和改变罗斯莫庄所代表的伦理传统,反而被它潜移默化地影响,为自己曾触犯伦理禁忌而深陷道德谴责。罗斯莫和吕贝克最终意识到他们的道德理想本质上是乌托邦式的想象,不具备现实伦理基础,因而无法变为现实。本文认为,该剧借此说明,思想自由和自我解放不能只凭个人主观意念的转变或某一立场的变更,更不是一蹴而就的伦理选择,而是受到历史、伦理环境和伦理传统等现实条件制约的复杂过程。

关键词：《罗斯莫庄》易卜生伦理身份伦理环境