Brief History of Science Translation in China

Science translation is a new branch of learning in China, but its practice can be traced back to about 200 BC. It includes all the practical fields but literary translation. It is the translation activity that mainly conveys science information, especially a thought activity and extra-language activity of the translator’s using target language to express the science information of source language so as to pursue the similar information. This paper briefly examines its history chronologically, and explores its gradual movement from practice to theory, from written translation to oral interpretation, from general theory to discipline studies. The history of science translation is composed of human translation and machine translation, but this paper only deals with the former.La traduction de la science est une discipline nouvelle en Chine, mais sa pratique remonte à l’an 200 avant J.-C. Elle contient tous les domaines pratiques à l’exception bien sûr de la traduction littéraire. L’objet de cette activité est essentiellement la transmission de l’information scientifique, soit une activité de la pensée, activité cognitive, de la part du traducteur qui assure le transfert de l’information de la langue source en langue cible. Selon une approche chronologique, cet article explore son évolution de la pratique à la théorie, de sa forme écrite à sa forme orale et de la théorie générale à la recherche disciplinaire. Cette étude se limite à la traduction humaine

Synthesis of 4-thio-5-(2′′-thienyl)uridine and cytotoxicity activity against colon cancer cells <i>in vitro</i>

A novel anti-tumor agent 4-thio-5-(2′′-thienyl)uridine (6) was synthesized and the in vitro cytotoxicity activity against mice colon cancer cells (MC-38) and human colon cancer cells (HT-29) was evaluated by MTT assay. The results showed that the novel compound had antiproliferative activity toward MC-38 and HT-29 cells in a dose-dependent manner. The cell cycle analysis by flow cytometry indicated that compound 6 exerted in tumor cell proliferation inhibition by arresting HT-29 cells in the G2/M phase. In addition, cell death detected by propidium iodide staining showed that compound 6 efficiently induced cell apoptosis in a concentration-dependent manner. Moreover, the sensitivity of human fibroblast cells to compound 6 was far lower than that of tumor cells, suggesting the specific anti-tumor effect of 4-thio-5-(2′′-thienyl)uridine. Taken together, novel compound 6 effectively inhibits colon cancer cell proliferation, and hence would have potential value in clinical application as an antitumor agent

Study on the property of AI-Sn-Pb and its bush material clad with steel strip by liquid-solid bond rolling

AISn8Pb2Si25Cu0.8Cr0.2(ASP) is a new bush material with high performance, but its bad lasticity limits its application. By studying the effect of silicon content on the performance of this bush material, it was found that the alloy performance and the distribution of tin and lead were affected by the silicon content. When the silicon content was 2.5%,most of the silicon recipitated along the grain boundary, and most of the lead and tin located along the grain boundary continuously, this resulted in the decrease of the bush material's performance. When the silicon content decreased to 1.0%,it distributed more uniformly, the tin and lead phases were spheroidized and became discontinuous, the performance of ASP material was then greatly increased