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Copyright of Journal of Chongqing University of Posts & Telecommunications (Natural Science Edition) is the property of Chongqing University of Posts & Telecommunications 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 Chongqing University of Posts & Telecommunications (Natural Science Edition) is the property of Chongqing University of Posts & Telecommunications 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 Urban Mass Transit is the property of Urban Mass Transit 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 Telecommunications Science is the property of Beijing Xintong Media Co., Ltd. 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 Inorganic Chemicals Industry is the property of Editorial Office of Inorganic Chemicals Industry 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 Progress in Earthquake Sciences is the property of China Earthquake Administration, Institute of Geophysics 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 Telecommunication Engineering is the property of Telecommunication 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.)

Copyright of Coal Geology & Exploration is the property of Xian Research Institute of China Coal Research Institute 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 Chongqing University of Posts & Telecommunications (Natural Science Edition) is the property of Chongqing University of Posts & Telecommunications 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 Natural Gas Industry is the property of Natural Gas Industry Journal Agency 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 Application Research of Computers / Jisuanji Yingyong Yanjiu is the property of Application Research of Computers Edition 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.)

Objective To explore the molecular mechanism of SHMT2 regulating the invasion and migration of breast cancer cells. Methods Bioinformatics analysis was used to verify the role of SHMT2 in breast cancer tissues. Transwell assay was used to detect the changes of invasion and migration abilities of breast cancer cells. Co-immunoprecipitation, knockdown plasmid transfection and Western blot were used to determine the regulatory relationship between different proteins. Results Bioinformatics analysis showed that the expression level of SHMT2 in invasive breast cancer tissues was significantly higher than that in adjacent normal tissues (P<0.001). The 5-year disease-specific survival and overall survival in the SHMT2 high expression group were significantly lower than those in the SHMT2 low expression group (both P<0.001). Transwell assay showed that SHMT2 knockdown significantly reduced the invasion ability (t=5.375, P=0.0058) and migration ability (t=6.274, P=0.0033) of MCF7 cells. Western blot showed that SHMT2 could combine to HAX1, and knockdown of SHMT2 reduced the protein level of HAX1. Transwell assay showed that the inhibitory effect of SHMT2 knockdown on the migration of MCF7 cells could be reversed by overexpression of HAX1 (t=6.274, P=0.0033; t=8.041, P=0.0013), while SHMT2 inhibitor (SHIN1, 10 nmol/L) significantly inhibited the migration of MCF7 cells induced by SHMT2 overexpression (t=10.16, P=0.0005; t=8.741, P=0.0009). Conclusion SHMT2 was closely related to the poor prognosis of breast cancer, and was a key factor in the invasion and migration of breast cancer cells. The mechanism was that SHMT2 increased the invasion and migration ability of breast cancer cells by binding to and up-regulating HAX1. It was verified that SHMT2 inhibitor could significantly reduce the migration ability of breast cancer cells. This study explored the therapeutic potential of SHMT2 inhibitor in metastatic breast cancer, and found potential intervention targets for its clinical treatment. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Chongqing University of Posts & Telecommunications (Natural Science Edition) is the property of Chongqing University of Posts & Telecommunications 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.)

Objective To explore the extraction process of liposoluble constituents of Codonopsis pilosula and analyze the liposoluble constituents of Codonopsis pilosula. Methods After using single factor analysis and uniform design experimentation to optimize the four parameters of extraction temperature, liquid to material ratio, extraction time, and ultrasound power for the liposoluble constituents of Codonopsis pilosula, the ether ultrasound assisted extraction method was used to extract the liposoluble constituents of Codonopsis pilosula. The content of liposoluble constituents of Codonopsis pilosula from different producing regions was compared, and the changes in liposoluble constituents of Wushan Miaoyu Codonopsis pilosula (referred to as Miao Dang) were analyzed. Results (1) Within the extraction time range of 10-50 minutes, the extraction rate of liposoluble constituents showed an increasing trend with the increase of time. When the extraction time exceeds 50 minutes, the extraction rate began to decrease. (2) Within the extraction temperature range of 15-45 ℃, the extraction rate of liposoluble constituents showed an increasing trend with the increase of extraction temperature, When the extraction temperature exceeds 45 ℃, the extraction rate began to decrease. (3) Within the material liquid ratio range of 1∶5-1∶10, the extraction rate of liposoluble constituents showed an increasing trend. When the material liquid ratio exceeds 1∶10, the extraction rate began to decrease. (4) Within the ultrasound power range of 80-120 W, the extraction rate of liposoluble constituents showed an increasing trend. When the ultrasound power reached 120 W, the extraction rate reached the maximum value of 2.072 6%, and then the extraction rate began to decrease. There were significantly differences in the content of liposoluble constituents in Codonopsis pilosula from 10 different places of production. After being stored at low temperature (4 ℃) for one month, the liposoluble constituents of Miao Dang decreased from 90 to 29, and the types of components underwent great changes. Conclusion The use of ether ultrasound assisted extraction method to extract the liposoluble constituents of Codonopsis pilosula has the characteristics of stable, efficient, and reliable process. There are significant differences in the content of liposoluble constituents of Codonopsis pilosula from different places of production, with the highest content being found in the Miao Dang. This partially explains the strong odor of Miao Dang. At the same time, attention should be paid to the storage conditions and time for the liposoluble constituents of Miao Dang. [ABSTRACT FROM AUTHOR]

In this paper, the anthropomorphic method was used to demonstrate the classification, properties, and characteristics of the vitamin B family in considerable detail, including the relationship between the vitamin B family and diseases, so that readers may fully understand the knowledge of vitamin B family. [ABSTRACT FROM AUTHOR]

In this paper, the anthropomorphic means were used to demonstrate the discovery history, properties, characteristics and important roles to human beings of fat-soluble vitamins in essential vitamins. The purpose was to make readers better understand the basic knowledge of fat-soluble vitamins in fun. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Chongqing University of Posts & Telecommunications (Natural Science Edition) is the property of Chongqing University of Posts & Telecommunications 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 Chongqing University of Posts & Telecommunications (Natural Science Edition) is the property of Chongqing University of Posts & Telecommunications 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 Inorganic Chemicals Industry is the property of Editorial Office of Inorganic Chemicals Industry 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 Inorganic Chemicals Industry is the property of Editorial Office of Inorganic Chemicals Industry 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 Chongqing University of Posts & Telecommunications (Natural Science Edition) is the property of Chongqing University of Posts & Telecommunications 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 Inorganic Chemicals Industry is the property of Editorial Office of Inorganic Chemicals Industry 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 Application Research of Computers / Jisuanji Yingyong Yanjiu is the property of Application Research of Computers Edition 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 Application Research of Computers / Jisuanji Yingyong Yanjiu is the property of Application Research of Computers Edition 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 Bulletin of the Chinese Ceramic Society is the property of Bulletin of the Chinese Ceramic Society 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.)

Solid polymer electrolyte (SPE) has attracted more and more attention due to its unique safety performance. Here, we prepared a PEO-based high-performance solid-state polymer electrolyte with a novel poly(ionic liquid) (PIL)/ionic liquid (IL) blend-modified poly(ethylene oxide). The crystal structure and thermal stability of the samples were investigated by X-ray diffraction (XRD) and thermogravimetric (TG) methods. The results showed that the introduction of PIL/IL significantly reduced the crystallinity and exhibited high thermal stability (320 ℃). The electrochemical properties of solid polymer electrolytes were investigated by electrochemical impedance (EIS), linear sweep voltammetry (LSV). The results showed that the reduction of crystallinity significantly improved the ionic conductivity (2.27×10-4 S/cm, 40 °C) and lithium-ion transference number (0.3, 40 °C). At the same time, the electrochemical window is improved due to the substitution of the proton hydrogen on the C(2) position of the imidazole ring by an alkyl group. By assembling the LiFePO4/Li cell for charge and discharge tests, it was found that the stable discharge capacity was as high as 150 mAh/g. The discharge capacity remained unchanged after 100 cycles, and the Coulomb efficiency remained above 99%, showing high capacity and cycle stability. [ABSTRACT FROM AUTHOR]

Copyright of Tobacco Science & Technology is the property of Tobacco Science & Technology 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 Synthetic Crystals is the property of Journal of Synthetic Crystals 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.)

浙江省经济发达，20年来走过的是一条以中小城镇为主的城市化道路.当前，城镇正处于空间结构新旧交替，规划实践空前发展时期，本文探索了中小城镇内部5个空间要素的变迁演替及布局特征，研究了中小城镇空间形态演化的5个阶段，具有重要的理论和实践意义.

To investigate the relationship between the expression of serum micro ribonucleic acid (miR)-34b-5p and miR-155 and the inflammatory factors and prognosis of premature infants with acute respiratory distress syndrome (ARDS). 92 premature infants with ARDS who were admitted to our hospital from February 2019 to March 2021 were selected, and they were divided into mild group (31 cases), moderate group (43 cases) and severe group (18 cases) according to the severity of ARDS, follow up the clinical outcome of children, according to the death in hospital, they were divided into survival group (51 cases) and death group (41 cases). The expressions of serum miR-34b-5p and miR-155, as well as interleukin-1 β(IL-1β), tumor necrosis factor -α(TNF-α) and interleukin- 6 (IL-6) in all the children were detected. The differences of the above indexes among the groups were compared, the correlation between the expressions of serum miR-34b-5p and miR-155 and inflammatory factors and the value of miR-34b-5p and miR-155 in predicting the prognosis of premature infants with ARDS were analyzed. The expression levels of serum miR-155 and the levels of IL-1β, TNF-αand IL-6 in the severe group were higher than those in the moderate group and mild group, and those in moderate group were higher than those in mild group (P<0.05). The expression level of serum miR-34b-5p in the severe group was lower than that in moderate and mild groups, and that in moderate group was lower than that in mild group (P<0.05). The expression level of serum miR-155 in the death group was higher than that in the survival group (P<0.05), and the expression level of miR-34b-5p in the death group was lower than those in the survival group (P<0.05). The expression level of miR-155 was positively correlated with the levels of IL-1β, TNF-αand IL-6 in premature infants with ARDS(P<0.05), and the expression level of miR-34b-5p was negatively correlated with the levels of IL-1β, TNF-αand IL-6(P<0.05). The area under curve(AUC) of miR-34b-5p and miR-155 predicting premature infant death in ARDS was 0.853, which was higher than 0.688 and 0.649 predicted by the two indexes alone. The expression levels of serum miR-34b-5p and miR-155 in premature infants with ARDS are related to the levels of serum inflammatory factors and prognosis, which can be used as potential indexes for condition evaluation and prognosis prediction of premature infants with ARDS. [ABSTRACT FROM AUTHOR]

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 Network & Information Security is the property of Beijing Xintong Media Co., Ltd. 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 Bulletin of the Chinese Ceramic Society is the property of Bulletin of the Chinese Ceramic Society 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 Chongqing University of Posts & Telecommunications (Natural Science Edition) is the property of Chongqing University of Posts & Telecommunications 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 Bulletin of the Chinese Ceramic Society is the property of Bulletin of the Chinese Ceramic Society 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 Chongqing University of Posts & Telecommunications (Natural Science Edition) is the property of Chongqing University of Posts & Telecommunications 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 Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine 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 Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine 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 Chongqing University of Posts & Telecommunications (Natural Science Edition) is the property of Chongqing University of Posts & Telecommunications 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 Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming Medical Journal 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.)