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As an important halophyte, Suaeda salsa has many ecological benefits, such as improving soil properties, reducing soil salt content, repairing soil heavy metal pollution, purifying eutrophic water, and so on. In China, Chemical herbicides have been used unreasonably for a long time, and their non target residues have caused serious environmental pollution. In order to study the inhibitory effect of chemical herbicides on seed germination and seedling growth of S. salsa, type I and type II seeds of S. salsa from inland artificial planting base, transition zone and intertidal zone were used as experimental materials. The effects of chemical herbicide cyclozi-none (375, 750, 1125, 1500 ml/hm2) on seed germination and seedling growth of S. salsa were analyzed. The results showed that the herbicides of low concentration had no obvious inhibitory effect on seed germination and seedling growth of S. salsa. The dimorphic seeds of S. salsa were affected by herbicides differently, type I seeds was affected significantly less than that of type II seeds. Seeds from the intertidal zone were less affected by herbicides, followed by inland artificial planting base, and seeds from the transition zone were more diverse. The herbicide and NaCl had an antagonistic effect on S. salsa type I seeds, and a synergistic effect on type II seeds. [ABSTRACT FROM AUTHOR]

Trust or trustworthiness is an important issue in e-education and development of students' capabilities. Factors to calculate trust level have been studied to provide valuable information to students to avoid invalid choices. While some education branches provider and fraudulent services online still widely exist. A typical one is to attract students with ideal price or service but fail to deliver a solid item. This behavior is often carried out by a newly registered e-education. This paper proposes a new trust evaluation model to indicate to some extent the trust level of an eeducation firm or service provider at different registered time. We describe our proposed approach for continuity trust evaluation, which evaluated empirically in the paper. [ABSTRACT FROM AUTHOR]

This paper aim to analyze the papers published in International Symposium on Safety Science and Technology (ISSST) in the period 1998-2012. Totally, 2781 ISSST papers were got from Web of Science, Bibliometrics indicators including annual publications, categories, geospatial distributions and topic analysis were used in this study. Results revealed that annual publications of ISSST could be divided in two stages, 1998-2004 as a period of increase in the number of publications and 2004-2012 as the period of decrease in the number of publications. The main categories of ISSST papers are in Engineering fields, that including Multidisciplinary Engineering, Industrial Engineering and Civil Engineering. Papers published in ISSST were originate from more than 30 countries/territories, while papers are mainly from China. In addition, these results also reflect in the institutional level. The analysis of the terms has revealed that all the topics of ISSST could be clustered into three groups, “safety and accident management”, “fire safety” and “coal mine safety”. The time slice of the topic analysis also shown the similar results to the integer terms analysis. [ABSTRACT FROM AUTHOR]

This paper aim to analyze the papers published in International Symposium on Safety Science and Technology (ISSST) in the period 1998-2012. Totally, 2781 ISSST papers were got from Web of Science, Bibliometrics indicators including annual publications, categories, geospatial distributions and topic analysis were used in this study. Results revealed that annual publications of ISSST could be divided in two stages, 1998-2004 as a period of increase in the number of publications and 2004-2012 as the period of decrease in the number of publications. The main categories of ISSST papers are in Engineering fields, that including Multidisciplinary Engineering, Industrial Engineering and Civil Engineering. Papers published in ISSST were originate from more than 30 countries/territories, while papers are mainly from China. In addition, these results also reflect in the institutional level. The analysis of the terms has revealed that all the topics of ISSST could be clustered into three groups, “safety and accident management”, “fire safety” and “coal mine safety”. The time slice of the topic analysis also shown the similar results to the integer terms analysis. [ABSTRACT FROM AUTHOR]