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劳资均势的生成——基于中高收入国家来华白领劳动者的研究

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社会学研究 2024年第5期 137-158,M0006页

作者：杨旸南京大学社会学院

通过对中高收入国家来华白领劳动者的调查,本文分析了由迁移方向所调节的国际移民劳动生产体制的形成与运作。当劳动者从原籍国向人均国民总收入更低或相近的国家迁移时,他们有身份和技能溢价,在劳动力再生产方面对资方的依附程度较低,... 详细信息

通过对中高收入国家来华白领劳动者的调查,本文分析了由迁移方向所调节的国际移民劳动生产体制的形成与运作。当劳动者从原籍国向人均国民总收入更低或相近的国家迁移时,他们有身份和技能溢价,在劳动力再生产方面对资方的依附程度较低,且移入国对他们的就业管理较有弹性。与此同时,劳务中介也塑造了劳方自主性。因此,劳方所处的生产体制存在个体谈判制度,这分散了劳资冲突,助推了劳资均势的生成。本文提供了国际移民劳动生产体制研究的新视角与新路径,拓展了国际移民研究领域的跨国劳务中介研究。

关键词：迁移方向国际移民劳动生产体制世界体系跨国劳务中介

Decoding the inconsistency of six cropland maps in China

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The Crop Journal 2024年第1期12卷 281-294页

作者： Yifeng Cui Ronggao Liu Zhichao Li Chao Zhang Xiao-Peng Song Jilin yang Le Yu Mengxi Chen Jinwei Dong Institute of Geographic Sciences and Natural Resources Research Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Department of Geographical Sciences University of MarylandCollege ParkMD 20740USA College of Grassland Science and Technology China Agricultural UniversityBeijing 100193China Ministry of Education Ecological Field Station for East Asian Migratory Birds Department of Earth System ScienceInstitute for Global Change StudiesTsinghua UniversityBeijing 100084China Ministry of Education Ecological Field Station for East Asian Migratory Birds Beijing 100084China Tsinghua University(Department of Earth System Science)-Xi’an Institute of Surveying and Mapping Joint Research Center for Next-Generation Smart Mapping Beijing 100084China Institute of Remote Sensing and Geographic Information System Peking UniversityBeijing 100871China Department of Forest and Conservation Sciences University of British ColumbiaVancouverBCV6T 1Z4Canada

Accurate cropland information is critical for agricultural planning and production,especially in foodstressed countries like *** widely used medium-to-high-resolution satellite-based cropland maps have been developed from various remotely sensed data sources over the past few decades,considerable discrepancies exist among these products both in total area and in spatial distribution of croplands,impeding further applications of these *** factors influencing their inconsistency are also *** this study,we evaluated the consistency and accuracy of six cropland maps widely used in China in circa 2020,including three state-of-the-art 10-m products(i.e.,Google Dynamic World,ESRI Land Cover,and ESA WorldCover)and three 30-m ones(i.e.,GLC_FCS30,GlobeLand 30,and CLCD).We also investigated the effects of landscape fragmentation,climate,and agricultural *** using a ground-truth sample revealed that the 10-m-resolution WorldCover provided the highest accuracy(92.3%).These maps collectively overestimated Chinese cropland area by up to 56%.Up to 37%of the land showed spatial inconsistency among the maps,concentrated mainly in mountainous regions and attributed to the varying accuracy of cropland maps,cropland fragmentation and management practices such as *** work shed light on the promotion of future cropland mapping efforts,especially in highly inconsistent regions.

关键词： Consistency and accuracy 10-and 30 m Cropland mapping Agricultural management China

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卒中后焦虑障碍血清炎症标志物的研究进展

四川精神卫生 2024年第2期37卷 187-192页

作者：林畅浩熊攀刘阳川北医学院临床医学院四川南充637000 西南医科大学临床医学院四川泸州646000 四川省精神卫生中心·绵阳市第三人民医院四川绵阳621000

卒中后焦虑障碍(PSA)是卒中后常见的精神心理障碍之一,对患者的康复和生活质量具有重要影响。当前研究表明,在PSA的发生和发展过程中,炎症发挥了一定作用。本研究回顾PSA与血清炎症标志物之间关联的相关文献,以期为PSA的干预提供参考。... 详细信息

卒中后焦虑障碍(PSA)是卒中后常见的精神心理障碍之一,对患者的康复和生活质量具有重要影响。当前研究表明,在PSA的发生和发展过程中,炎症发挥了一定作用。本研究回顾PSA与血清炎症标志物之间关联的相关文献,以期为PSA的干预提供参考。检索中国知网、万方数据库、Web of Science和PubMed,收集国内外关于PSA与血清炎症标志物的相关文献,最终纳入13篇文献。结果显示,PSA与血清炎症标志物存在一定关联,炎症标志物水平的升高可能与PSA的发生和严重程度相关,但具体机制仍需进一步研究。

关键词：卒中后焦虑障碍炎症标志物焦虑卒中

Full T-cell activation and function in teleosts require collaboration of first and co-stimulatory signals

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Zoological Research 2024年第1期45卷 13-24页

作者： Wei Liang Kang Li Haiyou Gao Kunming Li Jiansong Zhang Qian Zhang Xinying Jiao Jialong yang Xiumei Wei State Key Laboratory of Estuarine and Coastal Research School of Life SciencesEast China Normal UniversityShanghai 200241China Laboratory for Marine Biology and Biotechnology Qingdao National Laboratory for Marine Science and TechnologyQingdaoShandong 266237China

Mammalian T-cell responses require synergism between the first signal and co-stimulatory ***,whether and how dual signaling regulates the T-cell response in early vertebrates remains *** the present study,we discovered that the Nile tilapia(Oreochromis niloticus)encodes key components of the LAT signalosome,namely,LAT,ITK,GRB2,VAV1,SLP-76,GADS,and PLC-γ*** components are evolutionarily conserved,and CD3εmAb-induced T-cell activation markedly increased their ***,at least ITK,GRB2,and VAV1 were found to interact with LAT for signalosome *** of the first signal,the NF-κB,MAPK/ERK,and PI3K-AKT pathways were activated upon CD3εmAb ***,treatment of lymphocytes with CD28 mAbs triggered the AKT-mTORC1 pathway downstream of the co-stimulatory *** CD3εand CD28 mAb stimulation enhanced ERK1/2 and S6 phosphorylation and elevated NFAT1,c-Fos,IL-2,CD122,and CD44 expression,thereby signifying T-cell ***,rather than relying on the first or co-stimulatory signal alone,both signals were required for T-cell *** T-cell activation was accompanied by marked apoptosis and cytotoxic *** findings suggest that tilapia relies on dual signaling to maintain an optimal T-cell response,providing a novel perspective for understanding the evolution of the adaptive immune system.

关键词： Oreochromis niloticus CD3 CD28 T cells Adaptive immunity Evolution

Comprehensive insight into the occurrence characteristics,influencing factors and risk assessments of antibiotics in the Chaohu Basin

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Frontiers of Environmental Science & Engineering 2024年第5期18卷 57-71页

作者： Shuanggang Hu Hongzhi Zhang Yongjie yang Kangping Cui Junjie Ao Xuneng Tong Mengchen Shi Yi Wang Xing Chen Chenxuan Li Yihan Chen School of Resources and Environmental Engineering Hefei University of TechnologyHefei230009China Ministry of Education-Shanghai Key Laboratory of Children’s Environmental Health Xinhua HospitalShanghai Jiao Tong University School of MedicineShanghai200092China Department of Civil & Environmental Engineering National University of SingaporeSingapore117576Singapore College of Resources and Environment Anhui Agricultural UniversityHefei230036China

The pollution of antibiotics in aquatic environments has received extensive ***,research on antibiotic contamination in river-lake systems,a significant form of modern aquatic environments,still needs to be *** study focuses on the Chaohu Basin(China)investigating the occurrence characteristics,influencing factors,and risk assessments of antibiotics in the river-lake *** total antibiotic concentrations in the water phase and sediment phase were 3.14–1887.49 ng/L and 0.92–1553.75 ng/g,*** was the predominant antibiotic in the water phase,whereas tetracycline prevailed in the sediment *** differences in concentration and structural composition of antibiotics between the tributaries(river system)and Chaohu Lake were observed,indicating the involvement of various geochemical processes in the attenuation of antibiotics during transport to the receiving *** analysis suggested that the western river is the primary source of antibiotics in Chaohu *** nutrient influx in heavily polluted areas is crucial to addressing the escalating issue of antibiotic pollution in the river-lake *** widespread occurrence of clindamycin in the waters is likely due to wastewater treatment plant discharges,and high-intensity human activities continue to exacerbate antibiotic *** assessment indicated that sulfamethoxazole,tetracycline,lincomycin,and clindamycin ranked in the top four with the highest risks to the most sensitive aquatic ***,the antibiotics presented no risk to consumer *** study provides valuable insights for controlling antibiotic pollution in riverlake systems.

关键词： Antibiotics Occurrence characteristics Influencing factors Risk assessments River-lake system

In Situ Sustained Macrophage-Targeted Nanomicelle-Hydrogel Microspheres for Inhibiting Osteoarthritis

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Research 2024年第1期2023卷 1-16页

作者： XiaoXiao Li Xingchen Li Jielai yang Yawei Du Liang Chen Gang Zhao Tingjun Ye Yuan Zhu Xiangyang Xu Lianfu Deng Wenguo Cui Department of Orthopaedics Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint DiseasesShanghai Institute of Traumatology and OrthopaedicsRuijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025P.R.China

There are stillchallenges in applying drug nanocarriers for in situ sustained macrophage targeting and regulation,due to the rapid clearance of nanocarriers and burst drug release ***,a nanomicellehydrogel microsphere,characterized by its macrophage-targeted nanosized secondary structure that allows it to accurately bind to M1 macrophages through active endocytosis,is employed for in situ sustained macrophage targeting and regulation,and addresses the insufficient osteoarthritis therapeutic efficacy caused by rapid clearance of drug *** 3-dimensional structure of a microsphere can prevent the rapid escape and clearance of a nanomicelle,thus keeping it in joints,while the ligand-guided secondary structure can carry drugs to accurately target and enter M1 macrophages,and release drugs via the transition from hydrophobicity to hydrophilicity of nanomicelles under inflammatory stimulation inside the macrophages.

关键词： micelle release spheres

A dynamic database of solid-state electrolyte(DDSE)picturing all-solid-state batteries

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Nano Materials Science 2024年第2期6卷 256-262页

作者： Fangling yang Egon Campos dos Santos Xue Jia Ryuhei Sato Kazuaki Kisu Yusuke Hashimoto Shin-ichi Orimo Hao Li Advanced Institute for Materials Research(WPI-AIMR) Tohoku UniversitySendai980-8577Japan Key Laboratory of Radiation Physics and Technology Ministry of EducationCollege of PhysicsSichuan UniversityChengdu610065People's Republic of China Institute for Materials Research(IMR) Tohoku UniversitySendai980-8577Japan Tohoku Forum for Creativity Tohoku UniversitySendai980-8577Japan

All-solid-state batteries(ASSBs)are a class of safer and higher-energy-density materials compared to conventional devices,from which solid-state electrolytes(SSEs)are their essential *** date,investigations to search for high ion-conducting solid-state electrolytes have attracted broad ***,obtaining SSEs with high ionic conductivity is challenging due to the complex structural information and the less-explored structure-performance *** provide a solution to these challenges,developing a database containing typical SSEs from available experimental reports would be a new avenue to understand the structureperformance relationships and find out new design guidelines for reasonable ***,a dynamic experimental database containing>600 materials was developed in a wide range of temperatures(132.40–1261.60 K),including mono-and divalent cations(e.g.,Li^(+),Na^(+),K^(+),Ag^(+),Ca^(2+),Mg^(2+),and Zn^(2+))and various types of anions(e.g.,halide,hydride,sulfide,and oxide).Data-mining was conducted to explore the relationships among different variates(e.g.,transport ion,composition,activation energy,and conductivity).Overall,we expect that this database can provide essential guidelines for the design and development of high-performance SSEs in ASSB *** database is dynamically updated,which can be accessed via our open-source online system.

关键词： Solid-state electrolyte(SSE) All-solid-state battery(ASSB) Ionic conductivity Dynamic database Machine learning

羧甲基壳聚糖对牛骨胶原蛋白微观结构、热稳定性及自组装性质的影响

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食品科学 2024年第14期45卷 1-13页

作者：刘泓郭玉杰许雄李侠张鸿儒张春晖徐杨中国农业科学院农产品加工研究所农业农村部农产品加工综合性重点实验室北京100193 内蒙古蒙肽生物工程有限公司内蒙古呼和浩特011517

构建具备良好热稳定性、自组装性质及生物相容性的可食性细胞外基质(extracellular matrix,ECM)类似物支架对于制造结构化细胞培养肉制品至关重要。将羧甲基壳聚糖(carboxymethyl chitosan,CMCS)引入牛骨胶原蛋白(bovine bone collagen,... 详细信息

构建具备良好热稳定性、自组装性质及生物相容性的可食性细胞外基质(extracellular matrix,ECM)类似物支架对于制造结构化细胞培养肉制品至关重要。将羧甲基壳聚糖(carboxymethyl chitosan,CMCS)引入牛骨胶原蛋白(bovine bone collagen,BBC)体系中,通过光谱分析(紫外、红外、荧光光谱)发现BBC与CMCS的相互作用随着引入CMCS添加量的增加而增强,但并未影响BBC的三螺旋结构。差示扫描量热法/热重分析结果表明,CMCS的引入增强了BBC体系的热稳定性。浊度试验及扫描电子显微镜/透射电子显微镜观察结果证实了CMCS引入后胶原蛋白纤维形成度呈上升趋势,聚集行为更明显且自组装速率产生变化,呈现出更疏松扭曲的三维结构以及更大的纤维直径及更广泛的直径分布。但CMCS的引入并未明显影响BBC的D-周期性结构(胶原纤维自组装过程中形成的特征性明暗交替的周期性横纹结构)形成及其长度,且CMCS引入前后体系的细胞相容性也未呈现显著性差异。随着引入CMCS添加量增加,CMCS和BBC之间的静电作用力可能较共价相互作用和氢键更占优势。这些结果表明,CMCS的引入不影响BBC三螺旋结构完整性和生物相容性,并改善了BBC的热稳定性及体外自组装性质。这为开发新型优良可食性胶原蛋白基ECM仿生支架在细胞培养肉领域的应用以及畜禽骨副产物高值化精深加工利用提供了参考信息。

关键词：细胞培养肉细胞外基质牛骨胶原蛋白羧甲基壳聚糖微观结构热稳定性自组装

民营书业品牌建设研究--以三家上市公司比较分析为例

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出版发行研究 2024年第3期 31-37,43页

作者：杨扬上海出版印刷高等专科学校

随着市场竞争的日趋白热化,大众出版业的竞争已从单一的图书产品的竞争升级到品牌竞争阶段。民营图书公司凭借其灵活高效的运行机制和创新活力,在品牌建设方面展现出了卓越成效。对三家民营图书公司的代表读客文化、果麦文化和新经典进... 详细信息

随着市场竞争的日趋白热化,大众出版业的竞争已从单一的图书产品的竞争升级到品牌竞争阶段。民营图书公司凭借其灵活高效的运行机制和创新活力,在品牌建设方面展现出了卓越成效。对三家民营图书公司的代表读客文化、果麦文化和新经典进行了分析,总结出三种不同的品牌建设模式,分别是基于“超级符号+情感链接”的读客模式、基于“明星‘捆绑’+MCN”的果麦模式、基于“优质内容+长期主义”的新经典模式。在实践中,民营图书公司在品牌建设过程中也面临着挑战与不足。结合三家民营图书公司在品牌建设过程中的成功经验,针对民营图书公司品牌建设面临的共性挑战与不足,对民营图书公司品牌的建设进行了展望。

关键词：民营书业品牌建设读客模式果麦模式新经典模式