The impact of depth of environmental provisions and CO2 emissions embodied in international trade.

The construction of trade power and green low-carbon transformation are common high-quality development goals for countries worldwide. The depth of the environmental provisions contained in different countries' intercountry trade agreements and the implicit carbon data of intercountry trade are accurately measured based on the textual analysis of trade agreement rules, and it is empirically found that enhancing the depth of the environmental provisions contained in trade agreements can significantly reduce CO2 emissions embodied in international trade. The capacity of intercountry green technology cooperation to strengthen the internal environmental governance capacity of countries and to enhance carbon productivity is an important transmission mechanism. The effect of the environmental provisions in different types of trade agreements on reducing trade-implied carbon is obviously heterogeneous; the higher the level of correlation with carbon emissions is, the stronger the effect of trade agreement provisions, and that effect is more significant in developed countries and in the reduction of foreign carbon emissions that are embedded in export products. In this paper, the impact of the depth of the environmental provisions of trade agreements on trade-implied carbon under the same framework is directly studied, which not only advances the measurement of the depth of the environmental provisions of trade agreements and expands the research field on the scope of influence of existing trade agreements but also fully accounts for the role of the effectiveness of environmental provisions in different contexts and provides a theoretical basis for the optimization of future environmental provisions.

How does the import of environmental intermediate goods affect CO2 emissions? theoretical and empirical research of prefecture-level cities of China.

This paper constructs a theoretical model of biased production decisions due to the import of environmental intermediate goods. Additionally, it analyzes the influence of these imports on CO2 emissions based on the trade and CO2 emission data of Chinese prefecture-level cities from 2000 to 2016. Furthermore, it empirically explores how environmental intermediate imports affect CO2 emissions. The study found the following: first, the import of environmental intermediate goods can effectively reduce CO2 emissions; this conclusion still holds under robustness and endogeneity tests. Second, the carbon emission reduction effect related to the import of environmental intermediate goods is affected by differences in geographical location, environmental pollution, sustainable development ability and government efficiency. Third, the mechanism test found that the import of environmental intermediate goods exerts emission reduction effects through the green technological innovation and industrial structure upgrading mechanisms. The conclusions of the research in this article provide a reference for coordinating trade development and environmental protection.

Research on the impact of industrial robot application on the status of countries in manufacturing global value chains.

The fast growth in the installation of industrial robots has had a major impact on the comparative advantage of nations and the division of labor in global value chains in the era of smart manufacturing. Using various econometric models and panel data from 18 industries in 38 countries from 2000 to 2014, this paper empirically examines the impact of industrial robot applications on the status of countries in manufacturing global value chains and its mechanisms. The study demonstrates that industrial robot application can effectively improve the status of countries in manufacturing global value chains, and this improving effect is more obvious for developing countries and labor-intensive and technology-intensive industries. Mechanism testing shows that industrial robot application can effectively enhance the development level of highly skilled human capital and productive service industries, thereby improving the status of the manufacturing global value chain. This study provides a theoretical basis and policy reference for countries to enhance their status in the global value chain through industrial robot applications in the future.

The receptor for activated C kinase 1 (RACK1) mediating immune response in thick shell mussel Mytilus coruscus.

The receptor for activated C kinase 1 (RACK1) is a intracellular receptor for the protein kinase C family which mediates various biological processes. Here, a novel RACK1 gene termed Mc-RACK1 was identified from thick shell mussel, Mytilus coruscus. Mc-RACK1 shared typical RACK1 domains containing WD repeats, PKC phosphorylation sites, N-myristoylation sites, PKC activation sites, TK phosphorylation site and WD motifs. Mc-RACK1 was constitutively expressed in all examined tissues, and its expression in gills, haemocytes and digestive glands were significantly up-regulated upon LPS challenge. Mc-RACK1 showed a significantly down-regulated expression in gills and haemocytes at the early phase upon copper exposure. Mc-RACK1 in haemocytes was silenced after receiving its dsRNA, meanwhile, the increases of SOD and CAT activity were investigated. Further, Mc-RACK1 could activate the NF-κB and ISRE reporter in HEK-293T cells. These suggested that Mc-RACK1 had a deeper involvement in mollusc immunity, and played an important role in antioxidant system.

Transcriptome analysis of Mytilus coruscus hemocytes in response to Vibrio alginnolyficus infection.

As an economically important bivalve, the Mytilus coruscus is cultured widely in the eastern coast of China. In recent years, this bivalve has been seriously affected by the pathogenic infections. To elucidate the host defense mechanisms of M. coruscus against pathogenic challenge, the hemocyte transcriptomes of M. coruscus before and after Vibrio alginnolyficus infection were analyzed using the deep-sequencing platform Illumina/HiSeq-2500, meanwhile the differentially expressed genes (DEGs) were investigated. In total, 130,031,083 clean reads were obtained and then assembled into 63,942 unigenes with an average length of 810 bp and an N50 of 1056 bp. Unigenes were annotated by comparing against nr, Swiss-Prot, KEGG, COG, KOG, GO, and Pfam databases, and 27,345 unigenes (42.77%) were annotated in at least one database. After bacterial challenge, 1270 and 265 genes were identified as remarkably up- or down-regulated, respectively, amongst 1154 were associated with 122 pathways, including classical immune-related pathways, such as 'Toll-like receptor signaling', 'the complement cascades', 'MAPK signaling pathway', 'Apoptosis' and 'Wnt signaling pathway'. Besides, nine genes which were differently-expressed immuno-related were confirmed by using quantitative real-time PCR. These findings would provide new insights on the M. coruscus innate immunity, based on which, some novel strategies for management of diseases and long-term sustainability of M. coruscus culture could be developed.