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Polyp-Canal Reconstruction Reveals Evolution Toward Complexity in Corals

Research 2024年第1期2023卷 417-428页

作者： Yixin Li Xin Liao Xin Wang Yuanchao Li Hongwei zhao yunpeng zhao Junyuan Chen Chunpeng He Zuhong Lu State Key Laboratory of Bioelectronics School of Biological Science and Medical EngineeringSoutheast UniversityNanjing 210096China State Key Laboratory of Coastal and Offshore Engineering Dalian University of TechnologyDalian 116024China Guangxi Key Lab of Mangrove Conservation and Utilization Guangxi Mangrove Research CenterGuangxi Academy of SciencesBeihai 536000China Hainan Academy of Ocean and Fishery Sciences Haikou 571126China State Key Laboratory of Marine Resources Utilization in South China Sea Hainan UniversityHaikou 570228China Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences39 East Beijing RoadNanjing 210008China

Modern scleractinian corals are classified into robust,complex,and basal clades through comparative molecular ***,only few morphological or biological criteria can systematically determine the evolutionary trajectories of these major scleractinian coral ***,we obtained the structural information of 21 scleractinian coral species representing robust and complex clades:High-resolution micro-computed tomography was used to reconstruct the polyp-canal systems in their colonies and to visualize the dynamic polyp growth *** found that the emergence of mesh-like canals may distinguish representatives of complex and robust *** differences in polyp-canal connections suggest distinct evolutionary trajectories among coral species:The formation of the canal network promoted the development of more complex coral structures,and coral polyps within this network formed calices of very similar volume,following precise axial growth *** influence of individual polyps on the coral colony becomes less significant as coral structures become more complex,and coral species with more complicated polyp-canal systems occupied niches more *** work supplements current evolutionary studies on reef-building corals,providing insight for further studies on coral growth patterns.

关键词： Coral representing directions

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Carbon preservation in sedimentary deposits: Beyond mineral protection

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The Innovation 2024年第2期5卷 5-6页

作者： yunpeng zhao Juan Jia Chengzhu Liu Xiaojuan Feng State Key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeijing 100093China China National Botanical Garden Beijing 100093China College of Resources and Environment University of Chinese Academy of SciencesBeijing 100049China

The deposition and preservation of organic carbon(OC)in sedimentary environments(including soils and sediments)play major roles in mediating the global carbon *** than 90%of OC burial in the ocean occurs in continental margin sediments,which contributes to the evolution of the Earth’s atmosphere,such as oxygen content,over geological timescales.1 However,how OC escapes mineralization and persists in such sedimentary deposits has long been a *** protection through physicochemical associations of organic matter with minerals and cations is considered to be one of the primary mechanisms contributing to the environmental persistence of sedimentary OC.

关键词： sedimentary mineralization environments

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Extracellular vesicles derived from mesenchymal stem cells:the wine in Hebe's hands to treat skin aging

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Precision Clinical Medicine 2024年第2期7卷 170-189页

作者： Qixiang Gui Neng Ding Zuochao Yao Minjuan Wu Ruifeng Fu Yue Wang yunpeng zhao Lie Zhu Department of Plastic and Reconstructive Surgery Second Affliated Hospital of Naval Medical University(Shanghai Changzheng Hospital)Shanghai 20o001China Department of Plastic and Reconstructive Surgery of Shanghai East Hospital School of MedicineTongji UniversityShanghai 200120China Department of Histology and Embryology Naval Medical UniversityShanghai 200433China Shanghai Key Laboratory of Cell Engineering Translational Medical Research CenterNaval Medical UniversityShanghai 200433China hanghai Institute of Stem Cell Research and Clinical Translation Shanghai 200092China

Owing to its constant exposure to the external environment and various stimuli,skin ranks among the organs most vulnerable to manifestations of *** and delaying skin aging has become one of the prominent research subjects in recent *** stem celis(MsCs)are multipotent stem cells derived from mesoderm with high self-renewal ability and multilineage differentiation ***-derived extracellular vesicles(MSC-EVs)are nanoscale biological vesicles that facilitate intercellular communication and regulate biological *** studies have shown that MSC-EVs have potential applications in anti-aging therapy due to their anti-inflammatory,anti-oxidative stress,and wound healing promoting *** review presents the latest progress of MSC-EVs in delaying skin *** mainly includes the MSC-EVs promoting the proliferation and migration of keratinocytes and fibroblasts,reducing the expression of matrix metalloproteinases,resisting oxidative stress,and regulating *** then briefly discuss the recently discovered treatment methods of MSc-EVs in the field of skin ***,the advantages and limitations of EV-based treatments are also presented.

关键词： mesenchymal stem cell extracellular vesicles exosomes skin aging anti-aging photoaging

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Piezo1 channel exaggerates ferroptosis of nucleus pulposus cells by mediating mechanical stress-induced iron influx

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Bone Research 2024年第2期12卷 334-348页

作者： Ziqian Xiang Pengfei Zhang Chunwang Jia Rongkun Xu Dingren Cao zhaoning Xu Tingting Lu Jingwei Liu Xiaoxiong Wang Cheng Qiu Wenyang Fu Weiwei Li Lei Cheng Qiang Yang Shiqing Feng Lianlei Wang yunpeng zhao Xinyu Liu Department of Orthopaedics Qilu Hospital of Shandong UniversityJinan 250012China University of Health and Rehabilitation Sciences Qingdao 226000China Xiangya School of Medicine Central South UniversityChangsha 410013China School of Nursing and Rehabilitation Shandong UniversityJinan 250012China Department of Pediatrics Cangzhou Central HospitalCangzhou 061011China Department of Pediatric Surgery Qilu Hospital of Shandong UniversityJinan 250012China Department of Pathology Qilu Hospital of Shandong UniversityJinan 250012China Department of Spine Surgery Tianjin HospitalTianjin UniversityTianjin 30021China The Second Hospital of Shandong University Cheeloo College of MedicineShandong UniversityJinan 250012China

To date,several molecules have been found to facilitate iron influx,while the types of iron influx channels remain to be ***,Piezo1 channel was identified as a key iron transporter in response to mechanical ***1-mediated iron overload disturbed iron metabolism and exaggerated ferroptosis in nucleus pulposus cells(NPCs).Importantly,Piezo1-induced iron influx was independent of the transferrin receptor(TFRC),a well-recognized iron ***,pharmacological inactivation of Piezo1 profoundly reduced iron accumulation,alleviated mitochondrial ROS,and suppressed ferroptotic alterations in stimulation of mechanical ***,conditional knockout of Piezo1(Col2a1-CreERT Piezo1^(flox/flox))attenuated the mechanical injury-induced intervertebral disc degeneration(IVDD).Notably,the protective effect of Piezo1 deficiency in IVDD was dampened in Piezo1/Gpx4 conditional double knockout(cDKO)mice(Col2a1-CreERT Piezo1^(flox/flox)/Gpx4^(flox/flox)).These findings suggest that Piezo1 is a potential determinant of iron influx,indicating that the Piezo1-iron-ferroptosis axis might shed light on the treatment of mechanical stress-induced diseases.

关键词： stress overload channel

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Understanding the mechanisms and potential pathways of soil carbon sequestration from the biogeochemistry perspective

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Science China Earth Sciences 2024年

作者： Xiaojuan FENG Guohua DAI Ting LIU Juan JIA Erxiong ZHU Chengzhu LIU yunpeng zhao Ya WANG Enze KANG Jun XIAO Wei LI State Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences China National Botanical Garden College of Resources and Environment University of Chinese Academy of Sciences Department of Earth Sciences National Natural Science Foundation of China

Soil carbon sequestration is listed by the United Nations Framework Convention on Climate Change as one of the key ways to achieve long-term “carbon neutrality” in the context of global warming. Soil carbon sequestration is a complex biogeochemical process that involves plants, microbes, and rock minerals at its core. Yet, its regulation mechanisms and promotion pathways remain unclear. This paper reviews recent progress in the related domestic and international research and provides an overview of the key processes and mechanisms of soil carbon sequestration. The main pathways for enhancing soil carbon sequestration (including plant inputs, mineral protection, microbial transformation, and rock weathering) are summarized. The paper also discusses and synthesizes how advanced biogeochemical methods and technologies may be employed to explore soil carbon sequestration mechanisms and potentials. The overall aim of this review is to improve our understanding of soil carbon sequestration as a nature-based solution to combatting climate change from the biogeochemistry perspective, and to highlight the role of fundamental research in Earth Sciences in helping to achieve China’s carbon neutrality goals.

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基础设施投资对中国地区消费的影响研究

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管理现代化 2024年第4期44卷 36-45页

作者：赵云鹏张滨河北师范大学商学院河北石家庄050024

物质资本的积累是产品生产的基础,而基础设施投资是物质资本积累的形成过程,其建设与完善不仅是一个地区经济发展硬实力的体现,还是加速产品生产、运输与流通,进而提高居民终端消费水平的保障。本文使用2007-2022年中国省际面板数据,从... 详细信息

物质资本的积累是产品生产的基础,而基础设施投资是物质资本积累的形成过程,其建设与完善不仅是一个地区经济发展硬实力的体现,还是加速产品生产、运输与流通,进而提高居民终端消费水平的保障。本文使用2007-2022年中国省际面板数据,从不同视角定量考察基础设施投资对地区消费的影响。研究结果表明:基础设施投资显著提高了地区总体消费水平,且由于时滞的存在,当期基础设施投资对未来两期内的地区消费具有显著的促进作用;不同区域间基础设施投资对消费的影响存在差异,中部和西部地区基础设施投资对消费的促进作用较强,东部地区相对较弱;最后,空间效应分析发现基础设施投资不仅对当地消费有显著的促进作用,对邻接地区的消费也具有显著的促进作用,但对邻接地区消费的促进作用要弱于对当地消费的促进作用。

关键词：基础设施投资地区消费分位数回归空间计量

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折角比对养殖工船舱内流场特性的影响

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渔业现代化 2024年第2期51卷 22-31页

作者：赵玲菲薛博茹赵云鹏大连理工大学建设工程学部海岸和近海工程国家重点实验室辽宁大连116024

为改善带有顶、底边舱且低径深比的养殖工船养殖舱内流场特性,以提高水产养殖动物福利与经济效益,提出一种结构优化参数折角比(a/B,a为角壁边长,B为养殖舱壁边长),以评估养殖舱内流场的改善效果。基于计算流体动力学(CFD)仿真技术,研究... 详细信息

为改善带有顶、底边舱且低径深比的养殖工船养殖舱内流场特性,以提高水产养殖动物福利与经济效益,提出一种结构优化参数折角比(a/B,a为角壁边长,B为养殖舱壁边长),以评估养殖舱内流场的改善效果。基于计算流体动力学(CFD)仿真技术,研究折角比参数a/B(0~0.4)和进水速度(0.8~1.2 m/s)对养殖舱内流场特性的影响。结果显示:不同进水速度下,养殖舱内流体特性的变化趋势一致;养殖舱水力停留时间一致的条件下,当折角比参数0.25≤a/B≤0.40时,养殖舱内流场均匀性较好,平均流速较原方形养殖舱提高35%,能量有效利用率提高70%;角壁附近低流速区域减少,养殖舱中间排水口区域有明显涡柱形成,有助于提高养殖舱系统的自清洁性能。研究表明,折角比参数a/B控制在0.25~0.40时,有助于提高养殖舱系统的能量有效利用率和养殖空间利用率。研究结果可为养殖工船养殖舱的结构设计和优化提供参考依据。

关键词：折角比养殖工船养殖舱流场特性计算流体力学

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输变电线路施工新技术应用研究

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现代工程科技 2024年第4期3卷 1-4页

作者：赵云鹏广西宸建建设工程有限公司广西南宁530219

输变电线路是电力系统中非常重要的组成部分,施工技术的合理运用能够确保线路建设安全、顺利进行,并最大程度地减小施工风险和对环境的影响。然而,随着科技的不断发展和电力需求的不断增加,传统的施工技术已经无法满足不断变化的需求。... 详细信息

输变电线路是电力系统中非常重要的组成部分,施工技术的合理运用能够确保线路建设安全、顺利进行,并最大程度地减小施工风险和对环境的影响。然而,随着科技的不断发展和电力需求的不断增加,传统的施工技术已经无法满足不断变化的需求。因此,引入新技术和工艺,以提高输变电线路的施工效率和质量,成为必然趋势。对输变电线路施工中的新技术展开研究,从设计、施工应用方面进行论述,介绍了无人机技术等新技术的应用。

关键词：输变电线路施工技术新技术

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基于加速度分量测量的水下网衣破损定位方法

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渔业现代化 2024年第3期51卷 46-60页

作者：孙衍谦李子介赵云鹏中国电力工程顾问集团有限公司北京100011 大连理工大学海岸和近海工程国家重点实验室辽宁大连116024

为防止网衣发生破损时造成严重的经济损失,有必要对网衣进行破损定位检测。为了获得网衣破损位置的精准识别和实时监测,将网衣物理试验与数值模拟计算结合,提出了一种基于加速度分量测量的网衣破损定位建模方法。该方法增大了破损区域... 详细信息

为防止网衣发生破损时造成严重的经济损失,有必要对网衣进行破损定位检测。为了获得网衣破损位置的精准识别和实时监测,将网衣物理试验与数值模拟计算结合,提出了一种基于加速度分量测量的网衣破损定位建模方法。该方法增大了破损区域与非破损区域监测点的数据差异,从而确定网衣破损的位置。结果显示:监测点的位置选择、参数指标的选取是影响网衣破损定位效果的主要因素。将网目节点作为监测点可以增加监测点感知破损的能力,选用加速度分量作为指标参数,可以增大各个监测区域的数据差异,提升模型对破损的定位能力。在特定的规则波工况下,使用人工神经网络对破损定位的准确率高达97.9%。本研究为养殖网箱水下网衣破损位置的识别提供了新方法。

关键词：水下网衣破损定位物理模型试验数值模拟加速度

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大中型商业银行乡村振兴金融服务的创新实践与思考

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农银学刊 2024年第2期 33-37页

作者：赵云鹏中国农业银行农户金融部

本文基于大中型商业银行在乡村振兴金融服务体系创新、产品创新、渠道创新、工具创新、模式创新、政策创新、科技创新等方面的实践,分析乡村振兴金融服务的现状与趋势,提出全方位做优乡村振兴各领域金融支持、为乡村振兴提供多元化综合... 详细信息

本文基于大中型商业银行在乡村振兴金融服务体系创新、产品创新、渠道创新、工具创新、模式创新、政策创新、科技创新等方面的实践,分析乡村振兴金融服务的现状与趋势,提出全方位做优乡村振兴各领域金融支持、为乡村振兴提供多元化综合金融服务、推进乡村振兴金融服务数字化转型、持续完善乡村振兴金融服务体系、凝聚多方合力共促乡村振兴金融服务等具体政策建议。

关键词：乡村振兴金融服务农业强国

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