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Objective To investigate the effect of long non-coding RNA (lncRNA) cytoskeleton regulator RNA (CYTOR) targeting microRNA-139-5p (miR-139-5p) on the proliferation of triple-negative breast cancer cells and its mechanism. Methods The triple-negative breast cancer cell line HCC1806 was cultured in vitro, and the cells in the third generation, which were in the logarithmic growth phase and had good growth status, were taken for subsequent experiments. The targeted binding sites of lncRNA CYTOR and miR-139-5p were predicted through the StarBase database, and the targeted relationship between lncRNA CYTOR and miR-139-5p was verified through dual luciferase reporter gene experiments. HCC1806 cells were randomly divided into the blank control group, negative control group, lncRNA CYTOR silencing group, miR-139-5p overexpression group, lncRNA CYTOR silencing + miR-139-5p overexpression group, respectively. Cells in the negative control group, lncRNA CYTOR silencing group, miR-139-5p overexpression group, lncRNA CYTOR silencing + miR-139-5p overexpression group, and lncRNA CYTOR silencing + miR-139-5p overexpression group, were transfected with NC mimics, lncRNA CYTOR siRNA, miR-139-5p mimics, lncRNA CYTOR siRNA + miR-139-5p mimics, respectively. After 48 h of transfection, we replaced with fresh culture medium and continued to culture cells for 24 h. cells in the blank control group were cultured routinely and not transfected. We collected the aforementioned cells from each group. The expression levels of miR-139-5p and SOX8 mRNA were measured using RT-qPCR. The cell proliferation ability was measured using EdU method. The expression of ATP binding cassette transporter G2 (ABCG2) and sexdetermining region Y-box protein 8 (SOX8) was measured by Western blotting. Results Through the starBase database prediction, there was a binding site between lncRNA CYTOR and miR-139-5p. The dual luciferase reporter gene experiment confirmed that lncRNA CYTOR had a targeted regulatory relationship with miR-139-5p. The relative expression levels of miR-139-5p in the lncRNA CYTOR silencing group, miR-139-5p overexpression group, and lncRNA CYTOR silencing + miR-139-5p overexpression group were all higher than those in the blank control group and negative control group (all P<0. 05) . The relative expression levels of SOX8 mRNA, the proportion of EdU positive cells, and the relative expression levels of ABCG2 and SOX8 proteins were all lower than those in the blank control group and negative control group (all P<0. 05) . The relative expression level of miR-139-5p in the lncRNA CYTOR silencing+miR-139-5p overexpression group was higher than those in the lncRNA CYTOR silencing group and miR-139-5p overexpression group (both P< 0. 05) . The relative expression level of SOX8 mRNA, the proportion of EdU positive cells, and the relative expression levels of ABCG2 and SOX8 proteins were all lower than those in the lncRNA CYTOR silencing group and miR-139-5p overexpression group (all P<0. 05) . However, there were no statistically significant differences in the relative expression levels of miR-139-5p and SOX8 mRNA, the proportion of EdU positive cells or the relative expression levels of ABCG2 and SOX8 proteins between the blank control group and the negative control group, and between lncRNA CYTOR silencing group and miR-139-5p overexpression group (all P>0. 05) . Conclusion LncRNA CYTOR regulates the expression of ABCG2 and SOX8 by targeting miR-139-5p, thus promoting the proliferation of triple-negative breast cancer cells. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Railway Science & Engineering is the property of Journal of Railway Science & Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Drainage & Irrigation Machinery Engineering / Paiguan Jixie Gongcheng Xuebao is the property of Editorial Department of Drainage & Irrigation Machinery Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Clinical Hepatology / Linchuang Gandanbing Zazhi is the property of Journal of Clinical Hepatology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Shandong Medical Journal is the property of Shandong Medical Health Newspapers and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Chinese Institute of Food Science & Technology is the property of Journal of Chinese Institute of Food Science & Technology Periodical Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Rural Water & Hydropower is the property of China Rural Water & Hydropower Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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The Carboniferous Yanghugou Formation in the western margin of the Ordos Basin is found to have good source rocks with high organic matter content and good prospects for exploitation. The original stratigraphic division is controversial, and it is difficult to meet the growing demand for exploration. Taking the Xiaheyan section in Beishan area of Weining as an example, through field measurement, geochemical element detection, paleontological detection, the Yanghugou Formation was finely divided to determine the stratigraphic division marker bed in the southern section of the western margin of the basin. The boundary between the Yanghugou Formation and the Taiyuan Formation was redefined, and the boundary between the Carboniferous and the Permian was taken as the boundary between the Yanghugou Formation and Taiyuanzu. According to the sporopollen distribution characteristics, the Yanghugou Formation was divided into three sporopollen belts from bottom to top:Lycospora noctuina-Cyclogranisporites aureus combination,Dictyotriletes bireticulatus-Ahrensisporites guerickei-Torispora securis combination,Crassispora kosankei-Densosporites anulatus combination. The geochemical characteristics show that the Mn/ Fe value increases and the - δ13 C value decreases during the Yanghugou Formation period, and the sea level rose during this period. In the Taiyuan Formation, the Mn/ Fe value decreases and the - δ13 C value increases, and the sea level decreases during this period. Based on this, the Yanghugou Formation was divided into three segments: Yang 3, Yang 2 and Yang 1 from bottom to top. Through the combination of geochemical characteristics and sedimentary characteristics, the division of third-order cycles was determined to further verify the lithospheric division. . By establishing regional stratigraphic comparison sections, the depositional characteristics of large stratigraphic thickness in the western part of the work area and small in the eastern part were demonstrated, and there were obvious differences in the distribution and development of the stratigraphy of the Yanghugou Formation and each small layer within its group in different areas. [ABSTRACT FROM AUTHOR]

The need for international cooperation projects to comply with the principles of green development has become an important international norm. At present, the Belt and Road Initiative (BRI) is being further promoted. In this process, how the initiative can fol⁃ low green norms and lead global green development has become an important research subject. This article argues that advancing the Green Belt and Road Initiative has multiple, far-reaching strategic implications: First, the Green Belt and Road Initiative helps avoid risks in international cooperation. Therefore, this initiative serves as the foundation for BRI and must be further advanced. Second, from the perspective of international environmental cooperation, the Green Belt and Road Initiative helps to form a uniform pattern for the ecological civilization construction at home and abroad, and promotes the low-carbon transformation of the economy with green concepts, which is an important part of the domestic and international ‘dual circulation’ development paradigm. Third, from the perspective of diplomatic practice, it is an important field for China to participate in global ecological governance and build a human community with a shared future, and it is conducive to the promotion of China’ s international image. In the context of developing China’ s systems, green norms have set guidelines for the governance mechanisms of the BRI in an effort to integrate ecological and environmental factors into the whole process of the initiative’ s construction. By learning from China’ s local green development experience, the mechanism design based on co-construction and volunteerism will enhance the effectiveness of global ecological environment governance. So far, a soft and flexible approach has been adopted in the cooperation within the framework, which has yielded some preliminary results. From the perspective of the promotion paths, the construction of the Green Belt and Road Initiative should rely on effective institutional construction, promote market-oriented means, and form a more effective framework for international environmental cooperation. [ABSTRACT FROM AUTHOR]

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Copyright of Journal of Food Safety & Quality is the property of Journal of Food Safety & Quality Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Shaanxi University of Science & Technology is the property of Journal of Shaanxi University of Science & Technology Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Dalian Polytechnic University is the property of Journal of Dalian Polytechnic University Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Sedimentologica Sinica is the property of Acta Sedimentologica Sinica Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Zhengzhou University: Engineering Science is the property of Editorial Office of Journal of Zhengzhou University: Engineering Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Osteoporosis is the property of Chinese Journal of Osteoporosis and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Chinese Institute of Food Science & Technology is the property of Journal of Chinese Institute of Food Science & Technology Periodical Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

From the 1990s to the present, China has gone through four stages in the process of climate governance as a key stakehold⁃ er, from a prudent participant to an active contributor and a leader, whose ideas, actions and roles have profoundly influenced the pat⁃ tern of international climate governance. First, from the perspective of idea and principle, China has promoted a fair transformation of in⁃ ternational climate governance based on the dichotomy of developed and developing countries under the principle of'Common but Dif⁃ ferentiated Responsibilities'. Second, in terms of willingness and action, China has strengthened its participation in international cli⁃ mate negotiations, implementation of climate conventions, provision of climate governance solutions, and recent climate action vigorous⁃ ly. Third, from the aspects of position and role, China has been changing its role from being a passive and cautious participant to an open and active player, and then a leading contributor. The three factors driving China's participation in the international climate gover⁃ nance include the overall national interests, national power position and national role. On the one hand, China's idea and action have been influenced and shaped by the international climate system based on the United Nations Framework Convention on Climate Change (UNFCCC); on the other hand, with the economic growth and the increase of greenhouse gas emissions, China has also gained the struc⁃ tural power in international climate governance, leading the construction of the bottom-up international regime under the framework of the Paris Agreement. At present, the Paris Agreement is in its implementation stage from the rule-making process. In September 2020, China solemnly announced to the international community the goal of achieving carbon emissions peak before 2030 and carbon neutrali⁃ ty before 2060. China has established a leading group on carbon neutrality, which will formulate a 1+N policy system. As a responsible major power, China has put forward the Global Development Initiatives, stressing to adhere to the harmonious coexistence between hu⁃ mans and nature, in order to improve the global environment governance, to speed up the green low carbon transformation, and to achieve green recovery development. In the future, China will take a more positive attitude to leading the international climate gover⁃ nance and foster a'Community of Life for Human Beings and Nature'and a'Community of Shared Future for Global Development'. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Petrochemical Universities / Shiyou Huagong Gaodeng Xuexiao Xuebao is the property of Journal Editorial Department Of Liaoning Shihua University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Selecting talcum powder as the main raw material, porous ceramic heads for copper sulfate reference electrode(CSE) were prepared by adjusting the parameters of raw material size, sintering temperature, binder content, molding pressure and sintering mode. The porosity, pore size, morphology, structure, shrinkage and other performance parameters of the porous ceramic heads were tested and analyzed. Three kinds of porous ceramic heads were selected to make a portable copper sulfate reference electrode, and the long-term stability and life of the electrode potential were tested. The results show that the size of raw material, sintering temperature and forming pressure have a significant influence on the pore size and porosity of porous ceramic head. With the decrease of the size of raw material, the increase of sintering temperature and forming pressure, the pore size and porosity decrease. The electrode potential of the portable reference electrode made of porous ceramic head with pore size of 522 nm and porosity of 17.4% has a long-term stability and the estimated life can reach 4.2 years. [ABSTRACT FROM AUTHOR]

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Guangdong Architecture Civil Engineering is the property of Guangdong Architecture Civil Engineering Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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脑肿瘤 是一种致命性疾病 ， 脑肿瘤相关性瘢 病 临床比较少见 ，但是在神 经胶质瘤 中则相当常见 。 其根据受累位 置 不 同会出现各种临床表现 ， 进而对患者生活 、 工 作 、 学 习 产 生 重大影响 。 若患者在儿童期发病 ， 甚至还会影响其认知 功 能的发 育 。 因 此 ， 早发现 、 早诊断 、早治疗对患者而言非 常重要。 作者回顾 了 既往文献资料 中有关神经胶质瘤癫 病发作的 临床表现 、 药 物 和手术疗法 、 生物标志物 、预后及预后预浏 因 子 等 的研究进展， 讨论 了 抗癫 病 药物的预防性使用 及研究的未来方向 。 [ABSTRACT FROM AUTHOR]

At present, environmental pollution caused by organic dye wastewater with large discharge. high concentration, and difficult to decolorize has become one of the major challenges facing humankind. Mesoporous materials are widely used in the field of photocatalytic degradation due to their advantages such as high stability, adjustable pore size. and high specific surface area. However. it is difficult to completely remove the dye only by the adsorption performance of the mesoporous material. Therefore, introducing a second metal or metal oxide into the mesoporous material is an effective way to improve its degradation efficiency. Therefore, in this pa per. the nonionic surfactant triblock copolymer EO20 PO70 EO20 (P123) was used as a template to synthesize me soporous SiO2 material. The TiO2 was loaded on the surface and the interior of the mesoporous material by electrostatic action, and I and BiOBr were doped and loaded respectively on the surface of Tio to affect its band structure. and then improve the photocatalytic performance. The effect of different TiO2, and BIOBR mass ratio on photocatalytic degradation efficiency was studied. The results show that when the mass ratio of Tio to Bio Br was 3:1. the photocatalytic degradation performance of rhodamine B was the best. The degradation rate of rhodamine B could reach 100% in 10 minutes after the lamp was turned on. Mesoporous I/TiO22-BiOBr@SBA 15 composite material was expected to be used for industrial wastewater treatment. [ABSTRACT FROM AUTHOR]

Copyright of Electric Power Automation Equipment / Dianli Zidonghua Shebei is the property of Electric Power Automation Equipment Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Journal of Natural Disasters is the property of Gai Kan Bian Wei Hui and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Transactions of the Chinese Society of Agricultural Engineering is the property of Chinese Society of Agricultural Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)