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浏览/检索结果: 共25条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序作者升序作者降序 Learning Lightweight Dynamic Kernels With Attention Inside via Local-Global Context Fusion 期刊论文  OAI收割 IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS, 2022, 页码: 15 作者:  Tian, Yonglin;  Shen, Yu;  Wang, Xiao;  Wang, Jiangong;  Wang, Kunfeng   |  收藏  |  浏览/下载：24/0  |  提交时间：2023/03/20 Attention inside kernels  dynamic convolution  global context  local context   食用蔬菜能吸收和积累微塑料 期刊论文  OAI收割 科学通报, 2019, 卷号: 64, 期号: 9, 页码: 928-934 作者:  李连祯;  周倩;  尹娜;  涂晨;  骆永明   |  收藏  |  浏览/下载：150/0  |  提交时间：2020/06/17 微塑料  生菜  聚苯乙烯微球  吸收  积累  健康风险  microplastics  lettuce  polystyrene microbeads  uptake  accumulation  human health risk  Microplastic (MP, 100 nm-5 mm) may present an attributable risk to ecosystem and human health, and its pollution has become a global environmental concern. Despite a wealth of information on the accumulation of MPs in aquatic species, there is no information on the uptake and accumulation of MPs by higher plants. Terrestrial edible plants are directly exposed to MPs when agricultural soil was applied with organic manure, sewage sludge as fertilizer or plastic mulching. In this paper, the uptake of two sizes of polystyrene (PS) microbeads (0.2 and 1.0 mum) and then their distribution and migration in an edible plant lettuce were firstly investigated based on laboratory experiments. We used fluorescent markers to track PS microbeads in plant tissues and found fluorescence to be a sensitive and reliable detection method. Sections from untreated control lettuce showed no autofluorescence. When roots were treated with fluorescently labeled PS microbeads, the microbeads could be identified by its fluorescence. Our main study investigated the uptake of 0.2 mum beads, as few luminescence signals were observed in lettuce roots for 1.0 mum beads in our experiment. We observed that 0.2 mum fluorescent microbeads were extracellularly trapped in the root cap mucilage (which is a highly hydrated polysaccharide) and a dark green tip (which was typical of lettuce roots exposed to label PS beads) was usually visible to the naked eye. Confocal images revealed that the PS luminescence signals were mainly located in the vascular system and on the cell walls of the cortex tissue of the roots, indicated that the beads passed through the intercellular space via the apoplastic transport system. Once inside the central cylinder, the 0.2 mum PS beads were transferred from the roots to the stems and leaves via the vascular system following the transpiration stream. We also observed that the PS beads adhered to one another and self-assembled systematically into grape-like and (chain) string-like clusters in the intercellular space of the root and stem vascular tissue of lettuce plant. In contrast to the root and stem, PS beads were dispersed in the leaf tissue. Here, for the first time we provide evidence of the adherence, uptake, accumulation, and translocation of submicrometer MPs within an edible plant. Our findings highlight the previously underappreciated human exposure pathway to MPs through the consumption of contaminated crops and emphasize the need for new management strategies to control the release of MPs waste products into the terrestrial environment. Ultimately, the potential impacts of low range sized MPs on food safety of crop plants and human health need to be urgently considered.   Cross-Linking of Thiolated Paclitaxel-Oligo(p-phenylene vinylene) Conjugates Aggregates inside Tumor Cells Leads to "Chemical Locks" That Increase Drug Efficacy 期刊论文  OAI收割 ADVANCED MATERIALS, 2018, 卷号: 30, 期号: 10 作者:  Zhou, Lingyun;  Lv, Fengting;  Liu, Libing;  Shen, Guizhi;  Yan, Xuehai   |  收藏  |  浏览/下载：35/0  |  提交时间：2019/04/09 Antitumor  Assembly Inside Cells  Chemical Locks  Drug Resistance  Supramolecular Paclitaxel   Cross-Linking of Thiolated Paclitaxel-Oligo(p-phenylene vinylene) Conjugates Aggregates inside Tumor Cells Leads to "Chemical Locks" That Increase Drug Efficacy 期刊论文  OAI收割 ADVANCED MATERIALS, 2018, 卷号: 30, 期号: 10 作者:  Zhou, Lingyun;  Lv, Fengting;  Liu, Libing;  Shen, Guizhi;  Yan, Xuehai   |  收藏  |  浏览/下载：43/0  |  提交时间：2018/06/11 Antitumor  Assembly Inside Cells  Chemical Locks  Drug Resistance  Supramolecular Paclitaxel   Use of an inside buffer method to extract the extent of urban areas from DMSP/OLS nighttime light data in North China SCI/SSCI论文  OAI收割 2016 作者:  Tan M. H.;  Huang, C. 收藏  |  浏览/下载：29/0  |  提交时间：2016/12/16 DMSP  OLS data  inside buffer model  northern China  over-glow effects  urban areas  land-use  urbanization dynamics  composite data  satellite data  river  delta  time-series  luminosity  expansion  growth  images   Use of an inside buffer method to extract the extent of urban areas from DMSP/OLS nighttime light data in North China SCI/SSCI论文  OAI收割 2016 作者:  Tan M. H.   |  收藏  |  浏览/下载：14/0  |  提交时间：2017/11/09 DMSP  OLS data  inside buffer model  northern China  over-glow effects  urban areas  land-use  urbanization dynamics  composite data  satellite data  river  delta  time-series  luminosity  expansion  growth  images   Nanoscale noble metals with a hollow interior formed through inside-out diffusion of silver in solid-state core-shell nanoparticles 期刊论文  OAI收割 NANO RESEARCH, 2015, 卷号: 8, 期号: 2, 页码: 512-522 作者:  Hou, Pengfei;  Cui, Penglei;  Liu, Hui;  Li, Jianling;  Yang, Jun 收藏  |  浏览/下载：35/0  |  提交时间：2015/04/01 noble metal  nanoparticle  inside-out diffusion  solid-state  core-shell  hollow   Stepwise synthesis of cuprous oxide nanopartides with adjustable structures and growth model 期刊论文  OAI收割 SCIENCE CHINA-TECHNOLOGICAL SCIENCES, 2014, 卷号: 57, 期号: 11, 页码: 2287-2294 作者:  Yang AiLing;  Wang YuJin;  Li ShunPin;  Bao XiChang;  Yang RenQiang 收藏  |  浏览/下载：20/0  |  提交时间：2015/11/02 cuprous oxide  nano hollow spheres  stepwise synthesis  sodium hydrate  inside-outside growth model   Characteristics of a ridge-transform inside corner intersection and associated mafic-hosted seafloor hydrothermal field (14.0 degrees S, Mid-Atlantic Ridge) 期刊论文  OAI收割 MARINE GEOPHYSICAL RESEARCH, 2014, 卷号: 35, 期号: 1, 页码: 55-68 作者:  Li, Bing;  Yang, Yaomin;  Shi, Xuefa;  Ye, Jun;  Gao, Jingjing 收藏  |  浏览/下载：27/0  |  提交时间：2015/06/11 Southern Mid-Atlantic Ridge  Inside corner hydrothermal activity  Massive sulfide deposit  Gabbroic intrusion  Oceanic core complex   Integrin signalling and function in immune cells 期刊论文  OAI收割 IMMUNOLOGY, 2012, 卷号: 135, 期号: 4, 页码: 268-275 作者:  Zhang, YB;  Wang, HY 收藏  |  浏览/下载：36/0  |  提交时间：2015/07/22 adaptor proteins  cytoskeleton  inside-out signalling  integrin activation  outside-in signalling