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Experimental constraints on the formation of oxychlorine species by UV irradiation and mechanical pulverization on the lunar surface

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Acta Geochimica 2024年第4期43卷 625-637页

作者： Jiamei Li Yu-Yan Sara Zhao He Cui Shuai-Yi Qu Yanhua Peng yuhong yang Xiongyao Li Research Center for Planetary Science College of Earth and Planetary SciencesChengdu University of TechnologyChengdu 610059China Center for Excellence in Comparative Planetology Chinese Academy of SciencesHefei 230026China College of Life Sciences Wuchang University of TechnologyWuhan 430204China Technical Center of Qingdao Customs Qingdao 266114China Institute of Geology and Geophysics Chinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China Nanning College of Technology Guilin 541006China Center for Lunar and Planetary Sciences Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China

Perchlorate and chlorate are present in various extraterrestrial celestial bodies throughout the solar system,such as Mars,the moon,and *** date,the origin mechanisms of perchlorate and chlorate on the Martian surface have been well-established;however,relatively little attention has been cast to airless ***,we experimentally investigated the potential oxidation mechanisms of chloride to chlorate and perchlorate,such as ultraviolet irradiation under H_(2)O-and O_(2)-free conditions and mechanical pulverization *** minerals,olivine,pyroxene,ilmenite,magnetite,TiO_(2)and anhydrous ferric sulfate,and lunar regolith simulants(low Ti,CLRS-1;high-Ti,CLRS-2)and their metallic iron(Fe^( 0))bearing counterparts were *** found that pulverization of dry matrix material-halite mixtures,even in the presence of O_(2),does not necessarily lead to perchlorate and chlorate formation without involving *** photocatalytic and H_(2)O and O_(2)-free conditions,olivine and pyroxene can produce oxychlorine(ClO_(x)^(−))species,although the yields were orders of magnitude lower than those under Martian-relevant ***-Fe^(0)particles in the lunar regolith and the common photocatalyst TiO_(2)can facilitate the ClO_(x)^(−)formation,but their yields were lower than those with *** oxides ilmenite and magnetite did not efficiently contribute to ClO_(x)^(−)*** results highlight the critical role of H_(2)O in the oxidation chloride to chlorate and perchlorate,and provide essential insights into the environmental influence on the formation of oxychlorine species on different celestial bodies.

关键词： Perchlorate Chlorate Lunar regolith Metallic Fe Airless bodies

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The Time-Consistent Optimal Reinsurance Strategy of Insurance Group under the CEV Model

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Proceedings of Business and Economic Studies 2024年第2期7卷 205-221页

作者： yuhong yang Aiyin Wang School of Statistics and Data Science Xinjiang University of Finance and EconomicsUrumqi 830012XinjiangChina

The article introduces proportional reinsurance contracts under the mean-variance criterion,studying the time-consistence investment portfolio problem considering the interests of both insurance companies and reinsurance *** insurance claims process follows a jump-diffusion model,assuming that the risk asset prices of insurance companies and reinsurance companies follow CEV models different from each *** the framework of game theory,the time-consistent equilibrium reinsurance strategy is obtained by solving the extended HJB equation ***,numerical examples are used to illustrate the impact of model parameters on equilibrium strategies and provide economic *** results indicate that the decision weights of insurance companies and reinsurance companies do have a significant impact on both the reinsurance ratio and the equilibrium reinsurance strategy.

关键词： Mean-variance Joint benefit Extended HJB equation Constant elastic variance model

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The root-knot nematode effectorMi2G02 hijacks a host plant trihelix transcription factor to promote nematode parasitism

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Plant Communications 2024年第2期5卷 151-168页

作者： Jianlong Zhao Kaiwei Huang Rui Liu Yuqing Lai Pierre Abad Bruno Favery Heng Jian Jian Ling Yan Li yuhong yang Bingyan Xie Michael Quentin Zhenchuan Mao State Key Laboratory of Vegetable Biobreeding Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesBeijing 100081China INRAE Universite´Cote d’AzurCNRSISA06903 Sophia AntipolisFrance Department of Plant Pathology and Key Laboratory of Pest Monitoring and Green Management of the Ministry of Agriculture China Agricultural UniversityBeijing 100193China

Root-knot nematodes(RKNs)cause huge agricultural losses every *** secrete a repertoire of effectors to facilitate parasitism through the induction of plant-derived giant feeding cells,which serve as their sole source of ***,the mode of action of these effectors and their targeted host pro-teins remain largely *** this study,we investigated the role of the effector Mi2G02 in Meloidogyne incognita ***-derived Mi2G02 RNA interference in Arabidopsis thaliana affected giant cell development,whereas ectopic expression of Mi2G02 promoted root growth and increased plant sus-ceptibility to *** used various combinations of approaches to study the specific interactions between Mi2G02 and *** GT-3a,a trihelix transcription ***-3a knockout in *** affected feeding-site development,resulting in production of fewer egg masses,whereas GT-3a overex-pression in *** increased susceptibility to *** and also root ***,we demon-strated that Mi2G02 plays a role in maintaining GT-3a protein stabilization by inhibiting the 26S proteasome-dependent pathway,leading to suppression of TOZ and RAD23C expression and thus promoting nematode *** work enhances our understanding of how a pathogen effector manipulates the role and regulation of a transcription factor by interfering with a proteolysis pathway to reprogram gene expression for development of nematode feeding cells.

关键词： Meloidogyne incognita effector giant cell Mi2G02 transcription factor interaction

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Krill oil attenuates obesity-induced skeletal muscle atrophy in mice

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Food Science and Human Wellness 2024年

作者： Mengqing Zhou yuhong yang Yan Zheng Zijian Wu Chen Chen Qijian Liang Yu yang Hao Wu Xin Guo Lei Du School of Food Science and Engineering， Qilu University of Technology (Shandong Academy of Sciences) School of Public Health， Cheeloo College of Medicine， Shandong University Research Center of Translational Medicine， Jinan Central Hospital， Shandong University

Obesity is associated with skeletal muscle mass loss and physical dysfunction. Krill oil (KO) has been shown to be beneficial in human health. However， the effect of KO on obesity-induced skeletal muscle atrophy is still unclear. In this study， the male C57BL/6J mice were fed a high-fat diet (HFD) for 12 weeks to induce obesity， and then were intragastric administration with 400 mg/kg bw KO for an additional 6 weeks. The results showed that KO treatment reduced body weight， fat accumulation and serum pro-inflammatory cytokines in HFD-induced obese mice. Importantly， KO treatment attenuated skeletal muscle atrophy in HFD-fed mice， as evidenced by preserving skeletal muscle mass， average myofiber cross-sectional area and grip strength. KO administration also mitigated obesity-induced ectopic lipid deposition and inflammatory response in skeletal muscle. Additionally， KO treatment inhibited the transcriptional activities of nuclear factor-kappa B (NF-κB) p65 and forkhead box O 3a (FoxO3a)， and then down-regulated muscle atrophy F-box (MAFbx) and muscle-specific RING finger protein 1 (MuRF1) protein levels in skeletal muscle from HFD-fed mice. KO administration also improved obesity-induced impaired muscle protein synthesis via activating PI3K/Akt pathway. Furthermore， KO treatment enhanced muscle mitochondrial biogenesis in HFD-induced obese mice via activating PGC-1α pathway. Collectively， KO might be developed as a potential nutritional supplement for the prevention and treatment of obesity-induced skeletal muscle atrophy.

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响应面法优化羊肚菌菌丝体发酵培养基及培养条件

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包装与食品机械 2024年第3期42卷 1-7页

作者：杨建杨玉红沈阳农业大学生物科学技术学院沈阳110000 上海自然堂股份有限公司上海200000

为得到更多羊肚菌菌丝体,优化羊肚菌菌丝体发酵培养基及培养条件。采用单因素和响应面优化方法对羊肚菌菌丝体液体发酵培养基成分及培养条件进行优化研究。结果表明,通过单因素试验,最佳碳源选取蔗糖20 g/L;最佳氮源选取酵母膏25 g/L;... 详细信息

为得到更多羊肚菌菌丝体,优化羊肚菌菌丝体发酵培养基及培养条件。采用单因素和响应面优化方法对羊肚菌菌丝体液体发酵培养基成分及培养条件进行优化研究。结果表明,通过单因素试验,最佳碳源选取蔗糖20 g/L;最佳氮源选取酵母膏25 g/L;最佳无机盐选取KH2PO42.0 g/L;最佳pH值7,温度28℃。通过响应面优化试验,在蔗糖25 g/L、酵母膏15 g/L、KH2PO42.5 g/L、温度24℃时,菌丝体干重达17.71 g/L,比原有培养基培养的菌丝体干重提升22%。研究为羊肚菌液体高效生产菌丝体,开发羊肚菌发酵类产品奠定基础。

关键词：羊肚菌发酵培养单因素响应面优化

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基于UPLC-MS/MS羊肚菌子实体生物碱类代谢物差异分析

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菌物研究 2024年第3期22卷 283-289页

作者：杨建江煜章杨玉红沈阳农业大学生物科学技术学院沈阳110866 上海自然堂集团有限公司上海200213 信达生物制药(苏州)有限公司苏州215100

为了解羊肚菌Morchella菌株(MLM、MTL)子实体生物碱类化合物,同时比较其中生物碱类化合物差异,利用超高效液相色谱串联质谱(UPLC-MS/MS)、聚类分析、样品相关性分析和正交偏最小二乘判别等分析方法,在羊肚菌菌株MLM和MTL的子实体中共检... 详细信息

为了解羊肚菌Morchella菌株(MLM、MTL)子实体生物碱类化合物,同时比较其中生物碱类化合物差异,利用超高效液相色谱串联质谱(UPLC-MS/MS)、聚类分析、样品相关性分析和正交偏最小二乘判别等分析方法,在羊肚菌菌株MLM和MTL的子实体中共检测到78种生物碱代谢物(其中菌株MLM子实体77种生物碱代谢物,菌株MTL子实体75种生物碱代谢物),包括生物碱(34种)、吡啶类生物碱(6种)、吡咯类生物碱(2种)、酚胺(13种)、喹啉类生物碱(2种)、哌啶类生物碱(2种)、异喹啉类生物碱(1种)、吲哚类生物碱(18种);在羊肚菌菌株MLM和MTL的子实体中共筛选得到差异代谢物43种,相对于菌株MTL,MLM有8种成分上调;相对于菌株MLM,MTL有35种成分下调,其中甜菜碱在MLM中含量最高,N-(2-羟基-4-甲氧基苯基)乙酰胺在MTL中含量最高;N-对香豆酰羟基腐胺、对香豆酰胆碱、N-阿魏酰胍丁胺仅在MTL中检测到,而咖啡酰胍丁胺只在MLM含有;在显著差异代谢产物中MTL中水杨酰胺含量最高,而在MLM中3-羟基-2-氨基苯甲酸含量最高,说明MLM比MTL有更高的营养保健价值。差异代谢物主要分布在19种代谢途径中,包括新陈代谢途径通路、次生代谢的生物合成通路、色氨酸代谢通路、精氨酸和脯氨酸代谢通路以及赖氨酸降解等代谢通路。通过分析2种羊肚菌子实体中生物碱差异代谢物的相关生物学特性和代谢途径,为日后羊肚菌在保健食品、化妆品、药品等领域的应用提供参考依据。

关键词：羊肚菌靶向代谢组学生物碱类化合物差异代谢物

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朝阳而生向光而行——机构编制工作者小杨工作有感

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中国机构编制 2024年第7期 55-56页

作者：杨宇宏鄂尔多斯市东胜区委编办综合室

时光如白驹过隙,转眼间,成为一名机构编制工作者已四月有余。回看来时路,从“象牙塔”到“机关门”,从“温室花朵”到“机关干部”,从历史长河中的“某某”到机构编制工作者“小杨”,凡所经历,皆为成长。然则有一言可为新时代机构编制... 详细信息

时光如白驹过隙,转眼间,成为一名机构编制工作者已四月有余。回看来时路,从“象牙塔”到“机关门”,从“温室花朵”到“机关干部”,从历史长河中的“某某”到机构编制工作者“小杨”,凡所经历,皆为成长。然则有一言可为新时代机构编制工作者终身行之而投身于历史洪流者乎?答曰:擎举机构编制工作者之炬,朝阳而生,向光而行,照亮机构编制工作之远方。

关键词：机构编制工作机关干部象牙塔朝阳

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Identification and Analysis of WRKY Transcription Factors in Response to Cowpea Fusarium Wilt in Cowpea

Identification and Analysis of WRKY Transcription Factors in...

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中国植物病理学会2024年学术年会

作者： HAO Yali LIU Rui CHEN Guohua yang Qihong ZHENG Shijie LU Xiaofei yang yuhong XIE Bingyan ZHAO Jianlong LI Yan MAO Zhenchuan LING Jian College of Horticulture Shanxi Agricultural University Institute of Vegetables and Flowers Chinese Academy of Agricultural Sciences State Key Laboratory of Vegetable Biobreeding Institute of Vegetables and FlowersChinese Academy of Agricultural Sciences

In plant,WRKY transcription factors play a crucial role in plant growth,development,and response to abioticand ***(Vigna unguiculata) is an important legume ***,cowpea Fusarium wilt(CFW),caused by Fusarium oxysporum ***(Fot),poses a serious threat to its *** this study,we systematically identified members of the cowpea WRKY(VuWRKY) gene family and analyzed their expression patterns under cowpea wilt disease *** results revealed that a total of 91 WRKY transcription factors were identified in cowpea genome,and VuWRKY genes can be classed into three groups based on their conserved WRKY *** synteny analysis indicated that the expansion of VuWRKY genes in cowpea is mainly dependent on recent duplication *** data from cowpea roots inoculated with Fo showed differential expression in 31 VuWRKY genes,with 27 upregulated and 4 downregulated genes,indicating their significant role in the cowpea response to CFW *** selected differentially-expressed WRKY genes were used for downstream functional *** localization revealed that all four VuWRKY genes were localized in the cell *** blot analysis demonstrated successful expression of these genes in *** ***,yeast one-hybrid assays indicated that VuWRKY2 can bind to the promoter region of the Catalase(CAT) gene,suggesting their potential involvement in transcriptional *** study establishes a foundation for further exploration of the role and regulatory mechanisms of VuWRKY genes in response to CFW stress.

关键词： Cowpea Cowpea fusarium wilt WRKY Fusarium oxyporum Transcription regulation Expression profiling

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垂体ACTH瘤病理评估研究进展

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南京医科大学学报（自然科学版） 2024年第5期44卷 732-737页

作者：计铭钰杨宇宏孙敏南京医科大学第一附属医院内分泌科江苏南京210029

分泌促肾上腺皮质激素(adrenocorticotropic hormone,ACTH)的垂体腺瘤(垂体ACTH瘤)因过度分泌ACTH刺激双侧肾上腺皮质增生而引起高皮质醇血症,也称作库欣病(Cushing’s disease,CD),是内源性高皮质醇血症最常见的原因。垂体ACTH瘤可导... 详细信息

分泌促肾上腺皮质激素(adrenocorticotropic hormone,ACTH)的垂体腺瘤(垂体ACTH瘤)因过度分泌ACTH刺激双侧肾上腺皮质增生而引起高皮质醇血症,也称作库欣病(Cushing’s disease,CD),是内源性高皮质醇血症最常见的原因。垂体ACTH瘤可导致电解质紊乱,糖、脂代谢紊乱等一系列严重的临床症候群,累及全身多个脏器及系统。经蝶窦神经内镜手术是垂体ACTH瘤的一线治疗方法,可以得到较高的缓解率,但术后复发和持续状态仍然是垂体ACTH瘤治疗的一个未解决的问题。垂体ACTH瘤病理评估在确定病变性质、预测其预后及药物治疗选择方面均有重要的价值。文章就垂体ACTH瘤病理评估的相关进展进行综述,包括新的免疫组化标志物和镜下特殊表现。

关键词：垂体ACTH瘤库欣病病理免疫组化标志物

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基于阴影解耦和重参的轻量级阴影检测算法

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工程科学与技术 2024年第5期56卷 297-306页

作者：陈珏宇杨雨泓邢冠宇刘艳丽四川大学计算机学院四川成都610065 四川大学视觉合成图形图像技术国防重点学科实验室四川成都610065

由于阴影边界上的像素数量往往远小于阴影内部区域的像素数量,准确检测阴影边界区域相比于检测阴影内部区域像素更困难。为了提高在阴影边界上的检测准确率,本文提出了一种新颖且高效的轻量级边界感知阴影检测算法RBNet。首先,将图像分... 详细信息

由于阴影边界上的像素数量往往远小于阴影内部区域的像素数量,准确检测阴影边界区域相比于检测阴影内部区域像素更困难。为了提高在阴影边界上的检测准确率,本文提出了一种新颖且高效的轻量级边界感知阴影检测算法RBNet。首先,将图像分为阴影区域和非阴影区域,并分别采用距离变换将图像的阴影区域、非阴影区域的边界部分和主体解耦。接着,提出RBNet的解码器通过学习阴影区域的边界特征,在监督学习中平衡阴影边界与区域内部像素的对阴影检测性能的影响。然后,在RBNet中设计了一种可多分支融合的结构化重参模块RepConv,通过重参进行多分支融合来减少模型参数量、降低模型计算量并提高模型推理速度。将提出的RB-Net和其他常见的阴影检测算法进行了一系列阴影检测对比实验和算法模型消融对比实验。实验结果表明,本文提出的阴影检测算法RBNet不仅模型最小,且具有最快的推理速度,同时,在性能上优于现有的阴影检测算法。RBNet可在小型移动端设备上进行广泛应用,结合阴影去除算法,显著提高目标检测或分割任务的准确性。

关键词：阴影检测深度学习图像解耦卷积网络重参

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