中国开放科研知识云: 检索

Exploring Users' Internal Influence from Reviews for Social Recommendation: A Case Study on Yelp 期刊论文
IEEE Transactions on Multimedia, 2019, 卷号: 21, 页码: 771-781
作者: Zhao, Guoshuai; Lei, Xiaojiang; Qian, Xueming; Mei, Tao

收藏 | 浏览/下载：11/0 | 提交时间：2019/11/19

Collaboration Information overloading Interpersonal influences Matrix decomposition Products and services Recommendation accuracy Social network services Social recommendations

食用蔬菜能吸收和积累微塑料 期刊论文
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：63/0 | 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.

Provision of data from the clinical database and of biological material from the tumor bank of the Danish Breast Cancer Cooperative Group 2008–2017. 期刊论文
Acta Oncologica, 2018, 卷号: Vol.57 No.1, 页码: 154-156
作者: Mouridsen,Henning; Flyger,Henrik; Ejlertsen,Bent; Jensen,Maj-Britt; Vejborg,Ilse

收藏 | 浏览/下载：104/0 | 提交时间：2019/12/24

BIOLOGICAL products BREAST tumors CANCER patients COMMITTEES HISTOLOGICAL technique INFORMATION storage & retrieval systems -- Medical care TISSUE banks ACCESS to information ELECTRONIC health records

Digital Transformation, Business Model Innovation and Efficiency in Content Industries: A Review 期刊论文
The International Technology Management Review, 2018, 卷号: Vol.7 No.1, 页码: 59-70
作者: JosephP.Rojers

收藏 | 浏览/下载：7/0 | 提交时间：2019/12/24

Content Industry Information Products Digitization Business Models Electronic Markets Pricing Strategies

Digital Transformation, Business Model Innovation and Efficiency in Content Industries: A Review 期刊论文
International Journal of Computational Intelligence Systems, 2018, 卷号: Vol.7 No.1, 页码: 59-70
作者: JosephP.Rojers

收藏 | 浏览/下载：3/0 | 提交时间：2019/12/24

Content Industry Information Products Digitization Business Models Electronic Markets Pricing Strategies

Design of Data Package Software System for Aerospace Product Quality and Reliability 会议论文
MATEC Web of Conferences
作者: Ji, C.

收藏 | 浏览/下载：9/0 | 提交时间：2019/12/30

Computer architecture Product design Reliability analysis Software reliability Aerospace products Data packages Intelligent data Model development Open architecture Reliability data Software systems Space models Information management

Extraction of Spectral Information from Hyperspectral Data and Application of Hyperspectral Imaging for Food and Agricultural Products (EI收录) 期刊论文
Food and Bioprocess Technology, 2017, 卷号: 10, 页码: 1-33
作者: Ravikanth, Lankapalli[1]; Jayas, Digvir S.[1]; White, Noel D. G.[2]; Fields, Paul G.[2]; Sun, Da-Wen[3,4]

收藏 | 浏览/下载：5/0 | 提交时间：2019/04/24

Agricultural products Agriculture Chemical analysis Chemical contamination Data acquisition Data mining Discriminant analysis Imaging systems Information analysis Quality control Spectroscopy

The development of electronic resources in libraries : effective marketing and communication 学位论文
: Liverpool John Moores University, 2017
作者: Ashcroft,LindaSusan

收藏 | 浏览/下载：3/0 | 提交时间：2019/12/24

025.284 HF5410 Marketing. Distribution of Products Z719 Libraries ZA4050 Electronic information resources

The Readability of Electronic Cigarette Health Information and Advice: A Quantitative Analysis of Web-Based Information. 期刊论文
JMIR Public Health Surveill, 2017, 卷号: Vol.3 No.1, 页码: e1
作者: ZhuSH; ConwayM.; ParkA

收藏 | 浏览/下载：3/0 | 提交时间：2019/12/24

consumer health information electronic cigarettes health education health services tobacco use cessation products

农产品管理系统的设计与实现 学位论文
2016, 2016
罗秉红

收藏 | 浏览/下载：3/0 | 提交时间：2017/06/20

农产品管理信息发布 J2EE技术 Agricultural Products Management Information Delivery J2EE Technology

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