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苏南山丘区小流域土壤养分特性空间分布

长江流域资源与环境 2009年第9期18卷 831-836页

作者：李海东张波沈渭寿张金池张晓勉林杰环境保护部南京环境科学研究所江苏南京210042 南京林业大学森林资源与环境学院江苏南京210037 浙江省林业科学研究院浙江杭州310023

采用地统计学与GIS相结合的方法，以苏南山丘区邓下小流域为研究区，研究了表层土壤（0～20cm）的pH值、全氮、全磷和速效钾等4种养分的空间变异特征。结果表明：（1）土壤养分的变异系数大小是全磷〉速效钾〉全氮〉pH值，存在中等程度... 详细信息

采用地统计学与GIS相结合的方法，以苏南山丘区邓下小流域为研究区，研究了表层土壤（0～20cm）的pH值、全氮、全磷和速效钾等4种养分的空间变异特征。结果表明：（1）土壤养分的变异系数大小是全磷〉速效钾〉全氮〉pH值，存在中等程度的空间变异性。土壤pH的半方差函数理论模型为线性模型，全氮、全磷和速效钾均为指数模型。土壤全氮、全磷和速效钾具有强烈的空间相关性，结构性因素是影响其空间变异的主要因素。土壤pH值存在中等的空间相关性，随机因子引起的空间变异性所占比重较大。（2）土壤pH值自北部向东南部总体趋势递减，中部波动较大。全氮条带状分布明显，自北部向东南部递减。全磷含量具有南北部低，中部较高的趋势，中部波动较大，高值中心出现在这一区域。速效钾在研究区波动较大，高值区域主要集中在中北部，低值区域主要分布在中南部。研究结果可为小流域综合治理中土壤养分管理与植被恢复提供理论依据。

关键词：小流域 GIS 土壤养分空间变异特征苏南山丘区

A Rapid Adaptation Approach for Dynamic Air‑Writing Recognition Using Wearable Wristbands with Self‑Supervised Contrastive Learning

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Nano-Micro Letters 2025年第2期17卷 417-431页

作者： Yunjian Guo Kunpeng Li wei Yue Nam‑Young Kim Yang Li Guozhen shen Jong‑Chul Lee Department of Electronic Convergence Engineering Kwangwoon UniversitySeoul 01897South Korea Radio Frequency Integrated Circuit(RFIC)Bio Centre Kwangwoon UniversitySeoul 01897South Korea Department of Electronic Engineering Kwangwoon UniversitySeoul 01897South Korea School of Microelectronics Shandong UniversityJinan 250101People’s Republic of China State Key Laboratory of Integrated Chips and Systems Fudan UniversityShanghai 200433People’s Republic of China School of Integrated Circuits and Electronics Beijing Institute of TechnologyBeijing 100081People’s Republic of China

Wearable wristband systems leverage deep learning to revolutionize hand gesture recognition in daily *** existing approaches that often focus on static gestures and require extensive labeled data,the proposed wearable wristband with selfsupervised contrastive learning excels at dynamic motion tracking and adapts rapidly across multiple *** features a four-channel sensing array composed of an ionic hydrogel with hierarchical microcone structures and ultrathin flexible electrodes,resulting in high-sensitivity capacitance *** wireless transmission from a Wi-Fi module,the proposed algorithm learns latent features from the unlabeled signals of random wrist ***,only few-shot labeled data are sufficient for fine-tuning the model,enabling rapid adaptation to various *** system achieves a high accuracy of 94.9%in different scenarios,including the prediction of eight-direction commands,and air-writing of all numbers and *** proposed method facilitates smooth transitions between multiple tasks without the need for modifying the structure or undergoing extensive task-specific *** utility has been further extended to enhance human–machine interaction over digital platforms,such as game controls,calculators,and three-language login systems,offering users a natural and intuitive way of communication.

关键词： Wearable wristband Self-supervised contrastive learning Dynamic gesture Air-writing Human-machine interaction

The cGAS-STING-interferon regulatory factor 7 pathway regulates neuroinflammation in Parkinson's disease

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Neural Regeneration Research 2025年第8期20卷 2361-2372页

作者： shengyang Zhou Ting Li wei Zhang Jian Wu Hui Hong wei Quan Xinyu Qiao Chun Cui Chenmeng Qiao weijiang Zhao Yanqin shen Laboratory of Neurodegenerative and Neuroinjury Diseases Wuxi Medicine SchoolJiangnan UniversityWuxiJiangsu ProvinceChina

Interferon regulatory factor 7 plays a crucial role in the innate immune ***,whether interferon regulatory factor 7-mediated signaling contributes to Parkinson's disease remains *** we report that interferon regulatory factor 7 is markedly up-regulated in a 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-induced mouse model of Parkinson's disease and co-localizes with microglial *** the selective cyclic guanosine monophosphate adenosine monophosphate synthase inhibitor RU.521 and the stimulator of interferon genes inhibitor H151 effectively suppressed interferon regulatory factor 7 activation in BV2 microglia exposed to 1-methyl-4-phenylpyridinium and inhibited transformation of mouse BV2 microglia into the neurotoxic M1 *** addition,si RNA-mediated knockdown of interferon regulatory factor 7 expression in BV2 microglia reduced the expression of inducible nitric oxide synthase,tumor necrosis factorα,CD16,CD32,and CD86 and increased the expression of the anti-inflammatory markers ARG1 and *** together,our findings indicate that the cyclic guanosine monophosphate adenosine monophosphate synthase-stimulator of interferon genes-interferon regulatory factor 7 pathway plays a crucial role in the pathogenesis of Parkinson's disease.

关键词： cyclic guanosine monophosphate adenosine monophosphate synthase H151 interferon regulatory factor 7 M1 phenotype neurodegenerative disease neuroinflammation Parkinson’s disease RU521 STING type I interferon

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中国农林业害虫分布特征及其影响因素

生态学杂志 2014年第12期33卷 3322-3331页

作者：刘冬沈渭寿朱四喜邹长新谢浩京欧阳琰林乃峰环境保护部南京环境科学研究所南京210042 贵州民族大学化学与环境科学学院贵阳550025 英属哥伦比亚大学林学院

我国农、林业虫害危害范围和程度日益加剧,给生态环境和国民经济带来严重影响。本文根据文献记录和野外调查,系统整理了全国农、林业植物检疫性害虫分布特征,并用主成分分析、相关分析和回归分析方法,探讨了气象因素和社会经济因素对我... 详细信息

我国农、林业虫害危害范围和程度日益加剧,给生态环境和国民经济带来严重影响。本文根据文献记录和野外调查,系统整理了全国农、林业植物检疫性害虫分布特征,并用主成分分析、相关分析和回归分析方法,探讨了气象因素和社会经济因素对我国省级单位空间中农林业害虫分布的影响。结果表明,我国农林业虫害数量和密度分布总体上呈现由东部沿海向西部内陆减少的趋势。导致这一格局的主要因子是农业、经济发展水平因子,其次是温湿度等气象因子,说明农用地面积大、农作物播种面积大、森林覆盖率高、地区生产总值高、运输线路长、温度高湿度大的地区是害虫发生、发展的重灾区,也是潜在分布的高频区,应该引起政府管理部门的重视,积极采取防治措施。

关键词：空间格局人类活动气候变化有害生物

1957—2007年雅鲁藏布江中游河谷降水变化的小波分析

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气象与环境学报 2010年第4期26卷 1-7页

作者：李海东沈渭寿赵卫孙明孙俊环境保护部南京环境科学研究所江苏南京210042

通过对近51 a雅鲁藏布江中游河谷地区4个气象站逐日降水资料进行等权平均取值,采用气候倾向率和小波分析法,研究了不同时间尺度下近51 a降水变化趋势及周期特征。结果表明:研究区降水量以20世纪80年代为最少,2000年后年降水量与20世纪9... 详细信息

通过对近51 a雅鲁藏布江中游河谷地区4个气象站逐日降水资料进行等权平均取值,采用气候倾向率和小波分析法,研究了不同时间尺度下近51 a降水变化趋势及周期特征。结果表明:研究区降水量以20世纪80年代为最少,2000年后年降水量与20世纪90年代和60年代基本持平。夏季和秋季降水量年代际变化与年降水量的变化基本一致。近51 a降水量增加趋势不显著。年降水量存在准3 a、8—11 a和30 a的周期,以准11 a周期最为突出。降水量变化以春季增长趋势最显著,可在干旱季补充土壤水分,减轻风沙化土地的发生发展。秋季和冬季增长趋势不明显,夏季降水量呈减小趋势。就季节降水变化的时间尺度和周期性而言,2007年后四季降水表现为,春季在20—30 a时间尺度上将处于偏高期,夏季在8—12 a时间尺度上将处于偏低期,秋季在8—12 a时间尺度上将处于偏低期,冬季在20—30 a时间尺度上将出现向降水偏高的过渡期。

关键词：雅鲁藏布江中游河谷降水量时间尺度周期小波分析植被恢复

Association between autoimmune gastritis and gastric polyps:Clinical characteristics and risk factors

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 73-87页

作者： Jing-Zheng Jin Xiao Liang Shu-Peng Liu Rui-Lan Wang Qing-wei Zhang Yu-Feng shen Xiao-Bo Li Division of Gastroenterology and Hepatology Renji HospitalShanghai Jiao Tong University School of MedicineShanghai 200127China Division of Gastroenterology and Hepatology Shanghai Institute of Digestive DiseasesShanghai 200001China Division of Gastroenterology and Hepatology Renji Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200127China Division of Gastroenterology and Hepatology Sichuan Armed Police Corps HospitalLeshan 610041Sichuan ProvinceChina Division of Gastroenterology and Hepatology NHC Key Laboratory of Digestive DiseasesRenji HospitalShanghai Jiao Tong University School of MedicineShanghai 200127China Department of Gastroenterology Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai Institute of Digestive DiseasesShanghai 200127China

BACKGROUND The relationship between autoimmune gastritis(AIG)and gastric polyps(GPs)is not well *** To explore the clinical characteristics and risk factors of AIG with GPs in *** This double center retrospective study included 530 patients diagnosed with AIG from July 2019 to July *** collected clinical,biochemical,serological,and demographic data were of each *** regression analyses,both multivariate and univariate,were conducted to pinpoint independent risk factors for GPs in patients with AIG *** operating characteristic curves were utilized to establish the optimal cutoff values,sensitivity,and specificity of these risk factors for predicting GPs in patients with *** Patients with GPs had a higher median age than those without GPs[61(52.25-69)years vs 58(47-66)years,P=0.006].The gastrin-17 levels were significantly elevated in patients with GPs compared with those without GPs[91.9(34.2-138.9)pmol/mL vs 60.9(12.6-98.4)pmol/mL,P<0.001].Additionally,the positive rate of parietal cell antibody(PCA)antibody was higher in these patients than in those without GPs(88.6%vs 73.6%,P<0.001).Multivariate and univariate analyses revealed that PCA positivity[odds ratio(OR)=2.003,P=0.017],pepsinogen II(OR=1.053,P=0.015),and enterochromaffin like cells hyperplasia(OR=3.116,P<0.001)were significant risk factors for GPs,while pepsinogen I was identified as a protective *** PCA positivity and enterochromaffin like cells hyperplasia are significant risk factor for the development of GPs in patients with *** gastrin-17 levels may also play a role in this *** findings suggest potential targets for further research and therapeutic intervention in managing GPs in patients with AIG.

关键词： Autoimmune gastritis Gastric polyps Neuroendocrine tumor Risk factors Nomogram

不同添加剂对鸡粪堆肥中氨气和温室气体排放的影响

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环境生态学 2023年第2期5卷 51-60页

作者：顾沈怡钱锟詹永冰申卫收林先贵南京信息工程大学环境科学与工程学院江苏省大气环境监测与污染控制高技术研究重点实验室江苏省大气环境与装备技术协同创新中心江苏南京210044 土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所) 江苏南京210008

堆肥是将畜禽粪污进行资源化的有效手段之一,但是氮素的流失会造成堆肥产品质量的降低,堆肥过程排放的氨气(NH_(3))和温室气体(N_(2)O、CH_(4)、CO_(2))会加剧空气污染和温室效应。减少堆肥过程中这些气体的排放,不仅可以提高堆肥产物... 详细信息

堆肥是将畜禽粪污进行资源化的有效手段之一,但是氮素的流失会造成堆肥产品质量的降低,堆肥过程排放的氨气(NH_(3))和温室气体(N_(2)O、CH_(4)、CO_(2))会加剧空气污染和温室效应。减少堆肥过程中这些气体的排放,不仅可以提高堆肥产物的氮素含量,还可以减缓空气污染和温室效应。前期研究表明,加入添加剂(沸石、过磷酸钙和硫酸亚铁的混合物)或添加剂与菌株联用可以显著减少NH_(3)和N_(2)O的排放、实现堆肥产物保氮。为了进一步明确这3种添加剂对于堆肥中NH_(3)和温室气体的排放影响,选用鸡粪作为原料,将沸石、过磷酸钙、硫酸亚铁进行配伍组合,共设置8个试验处理进行室内模拟堆肥。结果表明,添加过磷酸钙和硫酸亚铁的处理(GL)对于NH_(3)的减排效果最好,为39.00%;添加沸石和过磷酸钙的处理(FG)对N_(2)O的减排效果最好,为7.19%;通过数据比较发现,堆肥氮损失中主要是由于NH_(3)的排放。CO_(2)是堆肥过程中气体排放占比最大的温室气体,各处理对于CO_(2)排放均有减排作用,其中添加硫酸亚铁的处理(L)、添加沸石和硫酸亚铁的处理(FL)对于CO_(2)减排效果显著,减排率分别为46.78%、34.26%。将上述3种温室气体转化为CO_(2)排放当量可以发现,3种添加剂均能减少CO_(2)排放当量,其中L处理的减排最好,减排率为45.57%,其次是FL处理、GL处理,分别为33.30%、32.48%。另外L、GL、FGL处理的堆肥产物中NH+4-N含量显著高于其他处理。沸石、过磷酸钙和硫酸亚铁不同组合中对NH_(3)和N_(2)O、CH_(4)、CO_(2)的排放影响存在显著差异,结合对NH_(3)和温室气体的减排效果和保氮能力,最后得出GL处理能作为一种较好的配伍组合,利用添加剂自身的吸附作用、pH等性质改变堆肥环境,减少堆肥中NH_(3)和N_(2)O、CH_(4)、CO_(2)的排放,这为畜禽粪便绿色高效资源化和减污降碳提供科学依据。

关键词：堆肥氨气温室气体添加剂

花棒(Hedysarum scoparium)对雅鲁藏布江中游山坡流动沙地土壤理化性质的影响

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生态与农村环境学报 2020年第12期36卷 1619-1625页

作者：王涛司万童闫瑞强李海东林乃峰沈渭寿生态环境部南京环境科学研究所江苏南京210042 重庆文理学院化学与环境工程学院重庆402160

为深入了解人工固沙植被对山坡流动沙地土壤理化性质的影响,对雅鲁藏布江中游山南宽谷段山坡流动沙地固沙植被区(试验组)和裸地(对照组)土壤养分和机械组成进行测定,分析人工植被花棒(Hedysarum scoparium)对土壤养分和机械组成的改良... 详细信息

为深入了解人工固沙植被对山坡流动沙地土壤理化性质的影响,对雅鲁藏布江中游山南宽谷段山坡流动沙地固沙植被区(试验组)和裸地(对照组)土壤养分和机械组成进行测定,分析人工植被花棒(Hedysarum scoparium)对土壤养分和机械组成的改良效果。结果表明,与同一海拔高度对照组采样点土壤相比,花棒生长地土壤的pH值和全钾含量显著降低,全氮与有机质含量显著升高。土壤养分优劣程度表现为全钾>全氮>有机质>全磷。样地中土壤粒度以细砂粒和中砂粒为主,花棒生长地土壤中细砂粒含量(53.79%)较对照组土壤细砂粒含量(49.34%)有一定程度的提高,表明人工种植的花棒可以使土壤粒径不断细化,对植被表层土壤养分含量具有增加效果。样地中土壤粗砂粒、极粗砂粒、石砾占比与土壤养分含量均没有表现出显著相关性,黏粒和极细砂粒占比与土壤养分含量相关性较高。土壤颗粒越小对土壤影响越大,即对土壤养分的贡献越大。花棒作为一种根系发达的植物,对雅鲁藏布江中游山坡流动沙地土壤质地具有改良作用,可以作为当地一种较好的山坡流动沙地人工恢复植物。

关键词：花棒(Hedysarum scoparium) 植被恢复流动沙地雅鲁藏布江中游

Inhibiting ceramide synthase 5 expression in microglia decreases neuroinflammation after spinal cord injury

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Neural Regeneration Research 2025年第10期20卷 2955-2968页

作者： wei Zhang Yubao Lu Ruoqi shen Yingjie Wu Chenrui Liu Xingxing Fang Liangming Zhang Bin Liu Limin Rong Department of Spine Surgery The Third Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdong ProvinceChina National Medical Products Administration(NMPA)Key Laboratory for Quality Research and Evaluation of Cell Products GuangzhouGuangdong ProvinceChina Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery GuangzhouGuangdong ProvinceChina Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery GuangzhouGuangdong ProvinceChina

Microglia,the resident monocyte of the central nervous system,play a crucial role in the response to spinal cord ***,the precise mechanism remains *** investigate the molecular mechanisms by which microglia regulate the neuroinflammatory response to spinal cord injury,we performed single-cell RNA sequencing dataset analysis,focusing on changes in microglial *** found that the MG1 subpopulation emerged in the acute/subacute phase of spinal cord injury and expressed genes related to cell pyroptosis,sphingomyelin metabolism,and neuroinflammation at high ***,we established a mouse model of contusive injury and performed intrathecal injection of siRNA and molecular inhibitors to validate the role of ceramide synthase 5 in the neuroinflammatory responses and pyroptosis after spinal cord ***,we established a PC12-BV2 cell co-culture system and found that ceramide synthase 5 and pyroptosis-associated proteins were highly expressed to induce the apoptosis of neuron *** ceramide synthase 5 expression in a mouse model of spinal cord injury effectively reduced ***,ceramide synthase 5-induced pyroptosis was dependent on activation of the NLRP3 signaling *** ceramide synthase 5 expression in microglia in vivo reduced neuronal apoptosis and promoted recovery of neurological ***2g7 formed a“bridge”between sphingolipid metabolism and ceramide synthase 5-mediated cell death by inhibiting the NLRP3 signaling ***,these findings suggest that inhibiting ceramide synthase 5 expression in microglia after spinal cord injury effectively suppressed microglial pyroptosis mediated by NLRP3,thereby exerting neuroprotective effects.

关键词： ceramide synthase 5 gasdermin D microglia neuroinflammation NLRP3 nuclear factor kappa B Pla2g7 pyroptosis sphingomyelin metabolism spinal cord injury