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丛枝菌根真菌及接种方式对柳叶马鞭草幼苗生长和生理的影响

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草地学报 2025年第1期33卷 79-86页

作者：朱凡高王幼珊张颖李红沈阳师范大学生命科学学院辽宁沈阳110034 北京市农林科学院植物营养与资源环境研究所北京100097

为探讨不同菌种和接种方式对柳叶马鞭草(Verbena bonariensis)幼苗生长和生理特性的影响。研究了4种丛枝菌根真菌(Arbuscular mycorrhizal fungi,AMF)即幼套球囊霉(Claroideoglomus etunicatum,Ce)、异形根孢囊霉(Rhizophagus irregularis,Rir)、根内根孢囊霉(Rhizophagus intraradices,Ri)、摩西斗管囊霉(Funneliformis mosseae,Fm)、2种接种方式(菌剂、砂子与蛭石混匀的D接种方式和蛭石装至穴盘穴位2/3处,接种菌剂、砂子,再覆蛭石的H接种方式)对柳叶马鞭草幼苗生长和生理的影响。结果表明:Ce接种柳叶马鞭草的菌根侵染率、侵染密度及丛枝丰度显著高于其他菌种。Ce在H接种方式下的株高、总生物量、地下生物量和光化学反射率指数显著高于D接种方式。相关分析表明,菌根侵染率、侵染密度和丛枝丰度与柳叶马鞭草的株高、总生物量和地下生物量呈显著正相关。AMF菌种及接种方式显著影响植物的生长和生理指标,以H接种方式下的Ce效果较好。其研究结果能为AMF在柳叶马鞭草育苗等方面的应用提供理论依据。

关键词：丛枝菌根真菌柳叶马鞭草幼苗生长生理特性

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高温超临界CO_(2)结构材料环境致裂研究进展

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中国腐蚀与防护学报 2025年第1期45卷 61-68页

作者：李开洋吴悠张冠霖张乃强华北电力大学能源动力与机械工程学院北京102206

作为能量传递介质,超临界CO_(2)(S-CO_(2))在能源领域表现出广阔的应用前景。但S-CO_(2)可以引起高温氧化、碳化腐蚀。腐蚀与应力协同作用下,材料腐蚀加剧,力学性能下降,加速衰退,进而发生环境致裂,引发严重后果。本文梳理S-CO_(2)引起... 详细信息

作为能量传递介质,超临界CO_(2)(S-CO_(2))在能源领域表现出广阔的应用前景。但S-CO_(2)可以引起高温氧化、碳化腐蚀。腐蚀与应力协同作用下,材料腐蚀加剧,力学性能下降,加速衰退,进而发生环境致裂,引发严重后果。本文梳理S-CO_(2)引起氧化、碳化的耦合腐蚀机制,总结高温高压S-CO_(2)系统环境致裂的评估手段,分析材料在腐蚀和力学协同作用下的环境致裂行为,包括腐蚀后材料力学性能的改变、应力腐蚀、蠕变、腐蚀疲劳、热循环、表面残余应力对腐蚀行为影响等,总结材料环境致裂的行为和机理。相关研究旨在为S-CO_(2)系统的材料选择和环境致裂防护提供理论基础和技术指导。

关键词：超临界CO_(2) 环境致裂应力腐蚀碳化

Combination types between graphene oxide and substrate affect the antibacterial activity

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Bioactive Materials 2018年第3期3卷 341-346页

作者： Jiajun Qiu Lu Liu hongqin Zhu Xuanyong Liu State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai200050China Shanghai Normal University Shanghai200234China University of Chinese Academy of Sciences Beijing100049China

Duo to their superior physicochemical properties,graphene and its derivatives(GDs),such as graphene oxide(GO)and reduced graphene oxide(rGO),have attracted extensive research interests around the *** recent years,antibacterial activities of GDs have aroused wide concern and substantial works have been ***,the underlying antibacterial mechanisms still remain *** activities of GDs vary with various factors,such as size,number of layers,oxygen-containing groups,and experimental *** assume that combination types between graphene oxide and substrate may affect the antibacterial ***,in this work,GO was fixed on the titanium surface with three kinds of combination types including drop with gravitational effects(GO-D),electrostatic interaction(GO-APS)and electrophoretic deposition(GO-EPD),and the antibacterial activities in vitro were systematically *** showed that combination types affected the ability of GO for preventing Staphylococcus aureus(***)from gathering,sharpness of wrinkles or edges and reactive oxygen spices(ROS)*** *** are in the form of separation without aggregation,GO can effectively interact with them and kill them with sharp wrinkles or edges and high ROS *** could effectively prevent *** from gathering,own sharp wrinkles or edges and could generate higher ROS *** a result,GO-EPD exhibited optimal antibacterial activity against ***,followed by GO-APS and GO-D.

关键词： Graphene oxide Antibacterial Titanium Combination type S.aureus

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分体装配式大坝防浪墙施工工艺技术

云南水力发电 2025年第1期41卷 94-97,103页

作者：尤悦中国水电建设集团十五工程局有限公司陕西西安710086

防浪墙应用于大坝及河道顶部上,在防浪、防洪、阻水方面意义重大。随着水库除险加固工程规模的不断扩大,防浪墙在水库大坝等水利工程建设中得到广泛的应用。依托老挝南欧江七级水电站项目,对传统防浪墙施工技术进行优化,在保证防浪墙功... 详细信息

防浪墙应用于大坝及河道顶部上,在防浪、防洪、阻水方面意义重大。随着水库除险加固工程规模的不断扩大,防浪墙在水库大坝等水利工程建设中得到广泛的应用。依托老挝南欧江七级水电站项目,对传统防浪墙施工技术进行优化,在保证防浪墙功能、断面面积、强度、抗滑稳定及抗倾覆满足设计要求前提下,采用现浇(底座)+预制(墙体)+现浇(三角部分)的方式进行防浪墙施工,该分体装配式防浪墙施工方法简单,对坝面防护要求低,施工安全可控,可在各类大坝防浪墙及河道防浪墙施工中进行推广应用。

关键词：分体装配式大坝防浪墙

Constraint of satellite CO_(2)retrieval on the global carbon cycle from a Chinese atmospheric inversion system

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Science China Earth Sciences 2023年第3期66卷 609-618页

作者： Zhe JIN Tao WANG hongqin ZHANG Yilong WANG Jinzhi DING Xiangjun TIAN State Key Laboratory of Tibetan Plateau Earth System and Resource Environment Institute of Tibetan Plateau ResearchChinese Academy of SciencesBeijing 100101China International Center for Climate and Environment Sciences Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China

Satellite carbon dioxide(CO_(2))retrievals provide important constraints on surface carbon fluxes in regions that are undersampled by global in situ *** this study,we developed an atmospheric inversion system to infer CO_(2)sources and sinks from Orbiting Carbon Observatory-2(OCO-2)column CO_(2)retrievals during 2015–2019,and compared our estimates to five other state-of-the-art *** assimilating satellite CO_(2)retrievals in the inversion,the global net terrestrial carbon sink(net biome productivity,NBP)was found to be 1.03±0.39 petagrams of carbon per year(Pg C yr^(-1));this estimate is lower than the sink estimate of 1.46–2.52 Pg C yr^(-1),obtained using surface-based *** estimated a weak northern uptake of 1.30 Pg C yr-1and weak tropical release of-0.26 Pg C yr^(-1),consistent with previous *** contrast,the other inversions showed a strong northern uptake(1.44–2.78 Pg C yr-1),but diverging tropical carbon fluxes,from a sink of 0.77 Pg C yr^(-1) to a source of-1.26 Pg C yr^(-1).During the 2015–2016 El Ni?o event,the tropical land biosphere was mainly responsible for a higher global CO_(2)growth *** high carbon uptake in the northern extratropics,consistent with concurrent extreme Northern Hemisphere greening,partially offset the tropical carbon *** anomalously high carbon uptake was not always found in surface-based inversions,resulting in a larger global carbon release in the other ***,our satellite constraint refines the current understanding of flux partitioning between northern and tropical terrestrial regions,and suggests that the northern extratropics acted as anomalous high CO_(2)sinks in response to the 2015–2016 El Nino event.

关键词： Carbon cycle Atmospheric inversion Net biome productivity(NBP) El Nino

Hepatorenoprotective effects of Lepidium draba *** against cyclophosphamideinduced oxidative injuries in rats via reducing apoptosis and inflammation

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Asian Pacific Journal of Tropical Biomedicine 2025年第2期15卷 53-64,I0002,I0003页

作者： Yu-Lai you Sheng Zheng Cheng-Jian Zhao Ye-Fei Chang Pei Liu Xue-Li Zeng Lian Liu Department of Hepatobiliary Surgery Chongqing University Jiangjin HospitalChongqing 402260China Department of Gastroenterology The Third People's Hospital of Yunnan ProvinceKunmingYunnan 650011China Hepatobiliary Pancreatic Surgery Qingdao Municipal HospitalQingdaoShandong 266071China Department of Laboratory Medicine The Third People's Hospital of Yunnan ProvinceKunmingYunnan 650011China Graduate School of Clinical Medicine Dali UniversityDaliYunnan 671000China Department of Pharmacy Shanghai Fengxian District Central HospitalShanghai 201406China

Objective:To investigate the protective effects of Lepidium draba L.(***)on cyclophosphamide(CP)-induced hepatotoxicity and nephrotoxicity in ***:A total of 36 rats were divided into six groups as follows:the sham control group,the CP group(CP 100 mg/kg *** days 1,7,14,21,28,and 35),the CP groups treated with *** extract(100,200 and 400 mg/kg of *** extract for 28 d),and the *** extract alone group(400 mg/kg of *** extract for 28 d).Serum parameters of renal and hepatic function,as well as pro-inflammatory and anti-inflammatory cytokines associated with liver and kidney damage were ***,Bax,Bcl-2,and caspase-3 gene expression and histopathological changes were ***:*** extract alleviated CP-induced hepatotoxicity and nephrotoxicity by decreasing nitric oxide,TBARS,IL-6,TNF-α,and IL-1βlevels,as well as increasing superoxide dismutase,catalase and glutathione peroxidase activities,and FRAP,MIF,and TGF-β*** addition,the extract downregulated the expression of pro-apoptotic genes(Bax and caspase-3)and mitigated the destruction of glomeruli and renal tubules as well as the degeneration of ***:*** extract can protect hepatic and renal structure and function against CP-induced toxicities,and may be used as a therapeutic agent for CP-induced hepatotoxicity and nephrotoxicity.

关键词： Lepidium draba Cyclophosphamide Oxidative stress Antioxidant Apoptosis Hepatotoxicity Nephrotoxicity

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“大思政”视域下大学生理论宣讲的现实省思

卫生职业教育 2025年第3期43卷 34-38页

作者：李优湖北师范大学湖北黄石435002

大学生理论宣讲是高校思想政治工作的重要组成部分,在强化理论武装、提高实践能力、提升思政素质等方面具有极为重要的意义。以H高校为例,分析大学生理论宣讲现状,在此基础上提出提高认知与激发参与、丰富内容与创新形式、强化互动与反... 详细信息

大学生理论宣讲是高校思想政治工作的重要组成部分,在强化理论武装、提高实践能力、提升思政素质等方面具有极为重要的意义。以H高校为例,分析大学生理论宣讲现状,在此基础上提出提高认知与激发参与、丰富内容与创新形式、强化互动与反馈循环、深化理论与实践融合等措施,以期为开展大学生理论宣讲工作提供理论与实践参考。

关键词：大思政大学生理论宣讲

Ni_2P/ZrO_2-SBA-15 Dibenzothiophene Hydrodesulfurization Catalysts: Preparation,Characterization and Evaluation

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Transactions of Tianjin University 2018年第4期24卷 340-350页

作者： hongqin Ma Qiurong Li Yang Shi Xiao Sun School of Chemical Engineering and Technology Tianjin University

Ni_2P/ZrO_2-SBA-15 catalysts with different zirconium n-propoxide/SBA-15 mass ratios were synthesized to evaluate their dibenzothiophene hydrodesulfurization catalytic activity. Effect of ZrO_2 introduction was investigated. Supports and catalysts were characterized by BET,XRD,^(29)SiNMR,XPS and FTIR. The results indicated that zirconium was incorporated into SBA-15 in the forms of [(–O–)_2 Si(–O–Zr)_2 ] and/or [(–O–)_3 Si–O–Zr],and that the SBA-15 framework structure was maintained after incorporation of ZrO_2. With zirconium content increasing,ZrO_2 was transformed from amorphous phase to tetragonal phase. Zirconium incorporation into SBA-15 supports could facilitate to form more dispersed Ni_2P active phase. There might be some interaction occurring between the P and Zr species. In addition to Ni_2P,another kind of active phase,ZrP,was formed,which might exhibit a better HDS activity than Ni_2P. It was observed that at a temperature of 280 °C,pressure of 3.0 MPa,WHSV of 6.5 h^(-1) and H_2 to oil ratio of 450,the Ni_2P/Zr-SBA(1.5) catalyst,where 1.5 represents zirconium n-propoxide/SBA-15 mass ratio,showed the highest DBT conversion,which was 86.6%,almost 35% higher than that of the Ni_2P/Zr-SBA(0) catalyst.

关键词： Nickel phosphide Hydrodesulfurization ZrO 2 modifi ed SBA-15

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World Journal of Clinical Cases 2025年第6期13卷 24-29页

作者： Wen-Jin Yuan Yi-Juan Zheng Bing-Rong Zhang Yi-Jie Lin you Li Yan-Yan Qiu Xue-Ping Yu Department of Infection Disease Clinical Medical Research Center for Bacterial and Fungal Infectious Diseases of Fujian provinceFujian Medical University Affiliated First Quanzhou HospitalQuanzhou 362000Fujian ProvinceChina

BACKGROUND Hydroxyurea,an antimetabolite,is frequently prescribed for various hemato-logical disorders,and its common side effects include gastrointestinal problems,cutaneous or mucosal lesions and pyrexia/*** SUMMARY This study reports the case of a 67-year-old woman who developed recurrent abdominal pain after 10 years of continuous hydroxyurea therapy for primary *** revealed an ileocecal *** discontinuing hydroxyurea therapy for 6 months,follow-up colonoscopy showed a significant reduction in the *** We consider cecal ulcers as a rare complication of hydroxyurea therapy which typically resolves upon stopping the drug.

关键词： Hydroxyurea Ulcer Abdominal pain Thrombocythemia Colonoscopy Case report