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Rice science 2019年第6期26卷 416-424页

作者： LIU Yaobin QIN Lin LI Fengbo zhou xiyue XU Chunchun JI Long CHEN Zhongdu FENG Jinfei FANG Fuping 1China National Rice Research Institute Hangzhou 310006 China Integrated and Urban Plant Pathology Laboratory Université de Liège Gembloux B-5030 Belgium Analysis and Determination Center Sichuan Academy of Agricultural Sciences Chengdu 610000 China

Exchange of nitrogen and phosphorus across sediment-water interface plays an important role in the management of nutrient recycling in the aquaculture pond. In this study, a plot experiment was conducted to study the effect of rice-catfish/shrimp co-culture on the micro-profile of oxygen (O2), pH and nutrient exchange across sediment-water interface in the intensive culture ponds. The results showed that rice-catfish co-culture increased the concentration and penetrating depth of O2, but decreased the pH value across the sediment-water interface, compared with catfish monoculture. Additional rice cultivation significantly reduced the flux rates of ammonium (NH4+) and nitrate (NO3-) across sediment-water interface in the catfish and shrimp ponds. The flux rates of NO2 - and soluble phosphorus (PO43-) showed no significant difference between rice-catfish/shrimp co-culture ponds and catfish/shrimp monoculture ponds. Rice only affected the dissolved inorganic nitrogen and phosphorus fractions in the sediment. The concentrations of NH4 + were significantly lower in the sediment of co-culture ponds than in the monoculture ponds. Additional rice cultivation also significantly reduced the content and percentage of dissolved inorganic phosphorus in the sediment of catfish ponds.

关键词： sediment-water interface rice-fish co-culture eutrophication nitrogen and phosphorus recycling aquaculture

Effects of Rice-Fish Co-culture on Oxygen Consumption in Intensive Aquaculture Pond

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Rice science 2019年第1期26卷 50-59页

作者： LI Fengbo SUN Zhiping QI Hangying zhou xiyue XU Chunchun WU Dianxin FANG Fuping FENG Jinfei ZHANG Ning China National Rice Research Institute Integrated and Urban Plant Pathology Laboratory University of Liège College of Agriculture and Biotechnology Zhejiang University Agricultural Extension Center of Zhuji City

Rice-fish co-culture has gained increasing attention to remediate the negative environmental impacts induced by intensive aquaculture. However, the effect of rice-fish co-culture on oxygen depletion has rarely been investigated. We constructed a rice-fish co-culture system in yellow catfish(Pelteobagrus fulvidraco) and freshwater shrimp(Macrobrachium nipponense) ponds using a new high-stalk rice variety, and conducted a field experiment to investigate the effect of rice-fish co-culture on water parameters and oxygen consumption. The results showed that rice-fish co-culture reduced the nutrients(total nitrogen, ammonia-N, total phosphorous and potassium) and the dissolved oxygen content in fish and shrimp ponds. However, they showed similar seasonal change of dissolved oxygen in the water of fish and shrimp ponds. Rice-fish co-culture reduced the total amount of oxygen consumption and optimized the oxygen consumption structure in pond. The respiration rates in water and sediment were significantly reduced by 66.1% and 31.7% in the catfish pond, and 64.4% and 38.7% in the shrimp pond, respectively, by additional rice cultivation. Rice-fish co-culture decreased the proportions of respiration in sediment and water, and increased the proportion of fish respiration. These results suggest that rice-fish co-culture is an efficient way to reduce hypoxia in intensive culture pond.

关键词： rice-fish co-culture oxygen depletion respiration pond aquaculture yellow catfish freshwater shrimp

Disease-derived circulating extracellular vesicle preconditioning:A promising strategy for precision mesenchymal stem cell therapy

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Acta Pharmaceutica Sinica B 2024年第10期14卷 4526-4543页

作者： Ke Lv Tian Wu Shuyun Liu Peng Lou Pingya zhou Yizhuo Wang xiyue zhou Shu Zhang Dan Du Yanrong Lu Meihua Wan Jingping Liu Department of Integrated Traditional Chinese and Western Medicine and NHC Key Laboratory of Transplant Engineering and Immunology Frontiers Science Center for Disease-related Molecular NetworkWest China HospitalSichuan UniversityChengdu 610041China Department of Emergency Medicine Emergency Medical LaboratoryWest China HospitalSichuan UniversityChengdu 610041China Advanced Mass Spectrometry Center Research Core FacilityFrontiers Science Center for Disease-related Molecular NetworkWest China HospitalSichuan UniversityChengdu 610041China West China Center of Excellence for Pancreatitis Institute of Integrated Traditional Chinese and Western MedicineWest China HospitalSichuan UniversityChengdu 610041China The First People’s Hospital of Shuangliu District Chengdu 610299China

Mesenchymal stem cell(MSC)-based therapies have emerged as promising methods for regenerative medicine;however,how to precisely enhance their tissue repair effects is still a major question in the *** extracellular vesicles(EVs)from diseased states carry diverse pathological information and affect the functions of recipient *** on this unique property,we report that disease-derived circulating EV(disease-EV)preconditioning is a potent strategy for precisely enhancing the tissue repair potency of MSCs in diverse disease ***,plasma EVs from lung or kidney tissue injuries were shown to contain distinctly enriched molecules and were shown to induce tissue injury-specific gene expression responses in cultured ***-EV preconditioning improved the performance(including proliferation,migration,and growth factor production)of MSCs through metabolic reprogramming(such as via enhanced oxidative phosphorylation and lipid metabolism)without inducing an adverse immune ***,compared with normal MSCs,disease-EV-preconditioned MSCs exhibited superior tissue repair effects(including anti-inflammatory and antiapoptotic effects)in diverse types of tissue injury(such as acute lung or kidney injury).Disease-derived EVs may serve as a type of“off-the-shelf”product due to multiple advantages,such as flexibility,stability,long-term storage,and ease of shipment and *** study highlights the idea that disease-EV preconditioning is a robust strategy for precisely enhancing the regenerative capacity of MSC-based therapies.

关键词： Regenerative medicine Mesenchymal stem cell Circulating extracellular vesicle Tissue injury Metabolic reprogramming Inflammation Cell death Preconditioning

稻作文化遗产活化赋能乡村游乐产业的几个设计思路

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中国稻米 2024年第3期30卷 107-112页

作者：方浩俊周锡跃金华职业技术学院浙江金华321017 中国水稻研究所杭州310006

从稻作器具、稻作民俗节庆、稻米饮食、稻作文学艺术等方面对稻作文化遗产进行系统的梳理和分类介绍。通过对金华市金东区的琐园村、金华市农耕文化园等项目中稻作文化应用现状分析,得出当前稻作文化遗产在乡村旅游应用中存在的问题,如... 详细信息

从稻作器具、稻作民俗节庆、稻米饮食、稻作文学艺术等方面对稻作文化遗产进行系统的梳理和分类介绍。通过对金华市金东区的琐园村、金华市农耕文化园等项目中稻作文化应用现状分析,得出当前稻作文化遗产在乡村旅游应用中存在的问题,如价值挖掘与激活方式有待进一步加强、缺乏文化原真性传承的思考、融入的业态需进一步创新拓展等。归纳总结了稻作文化遗产在赋能乡村旅游中应遵循的盈利性、原真性、趣味性三原则。最后分别从稻作器具、稻作民俗节庆、稻作文学艺术中选取了1个文化节点,设计了3款不同的游乐设施,供发展稻作文化遗产活化赋能乡村游乐产业参考。

关键词：水稻稻作文化遗产活化赋能乡村游乐产业

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“一带一路”背景下的中国大米外交策略

中国农业资源与区划 2018年第7期39卷 168-173页

作者：徐春春纪龙周锡跃方福平中国水稻研究所

[目的]农业外交是一种古老的外交形式,也是一项崭新的研究议题。大米外交是农业外交的重要内容,"一带一路"建设为中国开展与沿线国家大米外交提供了新契机。研究大米外交的实施路径,有助于提高中国大米国际竞争力。[方法]研究以如何开... 详细信息

[目的]农业外交是一种古老的外交形式,也是一项崭新的研究议题。大米外交是农业外交的重要内容,"一带一路"建设为中国开展与沿线国家大米外交提供了新契机。研究大米外交的实施路径,有助于提高中国大米国际竞争力。[方法]研究以如何开展大米外交为研究对象,分析了中国开展大米外交面临的机遇及相应实施路径。[结果]中国实施"大米外交"战略面临重要机遇,如粮食外交已成为世界各国外交战略的重要形态。中国杂交水稻技术国际领先优势明显,大米是"一带一路"沿线部分国家的重要贸易产品,中国水稻生产可持续发展环境亟需改善。针对不同国家及地区具体情况,通过大米贸易、技术合作、农业投资、粮食援助等多种形式,积极实施差别化的"大米外交"战略。如对东南亚、南亚主要是增加大米进口和技术交流,对中亚、俄罗斯主要是增加农地投资和劳务输出,对东非、北非主要是增加大米援助和技术输出,对东亚、中东欧主要是增加粳米出口和技术引进等路径。[结论]文章提出了加强金融支持、创新合作模式、把握进口时机和增加种子出口等推进中国"大米外交"的政策建议。

关键词：一带一路大米外交粮食安全可持续发展国家战略

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基于不锈钢毡的自支撑催化电极析氧性能研究

电源技术 2023年第3期47卷 357-361页

作者：周喜悦李焕巧孙海中国科学院大连化学物理研究所辽宁大连116023 中国科学院大学北京100049

电解水制氢技术在清洁能源转化中具有重要应用价值,但开发低成本、高性能的析氧电极仍具有挑战性。采用不锈钢纤维毡为基底,通过一步电沉积法在其表面原位生长镍/铁层状氢氧化物薄膜,所制备的催化电极成本低廉、析氧活性良好。电化学测... 详细信息

电解水制氢技术在清洁能源转化中具有重要应用价值,但开发低成本、高性能的析氧电极仍具有挑战性。采用不锈钢纤维毡为基底,通过一步电沉积法在其表面原位生长镍/铁层状氢氧化物薄膜,所制备的催化电极成本低廉、析氧活性良好。电化学测试结果表明,在1 mol/L KOH电解液中,电流密度为10 mA/cm^(2)时所需的过电位为242 mV,相应Tafel斜率仅为39.4 mV/dec,其性能优于商业铱基催化剂制备的电极性能。72 h恒电流测试过程中析氧催化活性未发生明显衰减。

关键词：析氧反应电解水不锈钢电沉积

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西南大旱、粮食安全及政策反思

农业经济问题 2010年第7期31卷 77-82页

作者：方福平李凤博徐春春周锡跃中国水稻研究所杭州310006

本文以西南大旱为研究案例,在分析西南大旱对区域和国家粮食安全影响及区域粮食生产和消费的主要特点的基础上,剖析了现行国家粮食政策中若干值得思考的问题,并提出了相应的对策建议。研究认为,粮食生产应坚持口粮优先的原则,农田基础... 详细信息

本文以西南大旱为研究案例,在分析西南大旱对区域和国家粮食安全影响及区域粮食生产和消费的主要特点的基础上,剖析了现行国家粮食政策中若干值得思考的问题,并提出了相应的对策建议。研究认为,粮食生产应坚持口粮优先的原则,农田基础设施建设需要大规模投入,粮食生产脆弱地区应优先建立粮食生产生态补偿机制,粮食流通更应关注农村地区。

关键词：西南大旱粮食安全口粮优先政策反思

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创新型领导对员工失败学习的影响研究

河南理工大学学报（社会科学版） 2024年第3期25卷 23-29页

作者：周喜悦傅端香河南理工大学工商管理学院能源经济研究中心河南焦作454000

科技快速革新与环境动荡使得企业内部的失败愈发普遍,如何有效从失败中学习受到越来越多人的关注,以往的研究表明,员工失败学习行为可能受到领导行为的影响,但其具体影响路径仍需进一步检验。本文从创新型领导出发,依次选取领导容错行... 详细信息

科技快速革新与环境动荡使得企业内部的失败愈发普遍,如何有效从失败中学习受到越来越多人的关注,以往的研究表明,员工失败学习行为可能受到领导行为的影响,但其具体影响路径仍需进一步检验。本文从创新型领导出发,依次选取领导容错行为、员工心理韧性为中介变量,构建创新型领导作用于员工失败学习行为的链式中介模型。研究结果表明,创新型领导对员工失败学习行为、领导容错行为和员工心理韧性具有直接的正向影响;领导容错行为和员工心理韧性在创新型领导与员工失败学习行为之间发挥着链式中介作用。

关键词：创新型领导失败学习行为领导容错行为员工心理韧性