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Copyright of Journal of Liaoning Technical University (Natural Science Edition) / Liaoning Gongcheng Jishu Daxue Xuebao (Ziran Kexue Ban) is the property of Journal of Liaoning Technical University (Natural 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 Practical Pharmacy & Clinical Remedies is the property of Editorial Department of Practical Pharmacy & Clinical Remedies 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 Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica 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 Journal of Hebei University of Science & Technology is the property of Hebei University of Science & Technology, Journal of Hebei University of 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 Arid Zone Research / Ganhanqu Yanjiu is the property of Arid Zone Research 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 China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher 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 Guangdong University of Technology is the property of Journal of Guangdong University of 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 Xinjiang Agricultural Sciences is the property of Xinjiang Agricultural Sciences 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.)

Branched chain amino acids are common amino acids in proteins, including leucine, isoleucine and valine. Due to branched chain aminotransferase and branched chain α-ketate dehydrogenase is a common enzyme of three branched chain amino acid metabolic pathways, so there is an antagonism between branched chain amino acids. The most effective activator of these two enzymes is leucine and its metaboliteα-ketoisocaproate. Excessive leucine in the diet will increase muscle catabolism and affect the growth performance of pigs. Therefore, in the pig care stage, it is recommended that the ideal model of standard ileum digestible lysine∶leucine∶isoleucine∶valine is 100∶100-150∶50-60∶65-70; At the stage of growing and finishing pigs, it is recommended that the ideal model of standard ileum digestible lysine∶leucine∶isoleucine∶ valine is 100∶110-150∶45-55∶65-75. [ABSTRACT FROM AUTHOR]

Copyright of Electronic Components & Materials is the property of Electronic Components & Materials 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 Functional Materials / Gongneng Cailiao is the property of Chongqing Functional Materials Periodical 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.)

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 Asian Journals of Ecotoxicology 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.)

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.)

BACKGROUND: A large number of studies focus on the effect of inflammatory factors on human periodontal ligament stem cells; however, there are few reports on the expression of chemokine macrophage inflammatory protein-1α in human periodontal ligament stem cells at home and abroad. OBJECTIVE: To investigate the effects of different mass concentrations of macrophage inflammatory protein 1α on the proliferation, apoptosis, and migration of human periodontal ligament stem cells and the correlation of Notch signaling pathway. METHODS: Healthy orthodontic reduced premolars were extracted from patients aged 12-25 years (all signed informed consent), and human periodontal ligament stem cells were isolated and cultured by tissue block method combined with enzymatic digestion. Passage 3 human periodontal ligament stem cells at logarithmic growth stage were divided into control group, 1, 10, 100 mg/L macrophage inflammatory protein-1α groups. Cell proliferation was detected by CCK8 assay at 1, 3, 5, and 7 days. At 48 hours, the apoptotic ability of each group was detected by flow cytometry. Cell migration ability of each group was detected by Transwell chamber test. ELISA was used to detect the level of secreted tumor necrosis factor α. qRT-PCR and western blot assay were used to detect the mRNA and protein expression levels of Notch1 and Hes1. RESULTS AND CONCLUSION: (1) 1 mg/L macrophage inflammatory protein-1α had no significant effect on the biological behavior of human periodontal ligament stem cells. 10 mg/L macrophage inflammatory protein-1α significantly promoted the proliferation and migration of human periodontal ligament stem cells, and 100 mg/L macrophage inflammatory protein-1α significantly promoted the apoptosis of human periodontal ligament stem cells, inhibited the proliferation and migration of human periodontal ligament stem cells. (2) 1 mg/L macrophage inflammatory protein-1α had no significant effect on the expression of Notch1 and Hes1 proteins in human periodontal ligament stem cells. 10 mg/L macrophage inflammatory protein-1α had no significant effect on the expression of Notch1 protein in human periodontal ligament stem cells, but could down-regulate the expression level of Hes1 protein in the cells. 100 mg/L macrophage inflammatory protein-1α could up-regulate the expression of Notch1 and Hes1 protein in cells. (3) The level of tumor necrosis factor α secreted by human periodontal ligament stem cells of the 1 mg/L macrophage inflammatory protein-1α group was not significantly different from that of the control group. 10 mg/L macrophage inflammatory protein-1α promoted the secretion of tumor necrosis factor α; 100 mg/L macrophage inflammatory protein-1α inhibited the secretion of tumor necrosis factor α. (4) These results exhibited that 10 mg/L macrophage inflammatory protein-1α promoted the proliferation, migration and tumor necrosis factor α secretion of human periodontal ligament stem cells, and the mechanism might be related to the down-regulation of Notch signaling pathway. 100 mg/L macrophage inflammatory protein-1α inhibited the proliferation and migration of human periodontal ligament stem cells and the secretion of tumor necrosis factor α, and promoted the apoptosis of human periodontal ligament stem cells. The mechanism may be related to the upregulation of Notch signaling pathway. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Molecular Science is the property of Journal of Molecular Science 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 Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica 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 Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research 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 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.)

Copyright of Rolling Stock (1002-7602) is the property of Rolling Stock 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 Modern Medicine & Health is the property of Journal of Modern Medicine & Health 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 Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu is the property of Chinese Journal of Tissue Engineering Research 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 Lubrication Engineering (0254-0150) is the property of Editorial Office of LUBRICATION 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 Plastics Science & Technology / Suliao Ke-Ji is the property of Plastics Science & Technology 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 Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao is the property of Chinese Journal of Applied Ecology 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 Xinjiang Agricultural Sciences is the property of Xinjiang Agricultural Sciences 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 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 Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal 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 China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher 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.)

Radio Frequency energy harvesting (EH) Technology is one of the most promising technologies to solve the problem of energy shortage of wireless communication portable equipment, which can keep working without fixed power supply. However, the wireless channel will cause path attenuation and random fading to electromagnetic waves. The EH device will convert the collected electromagnetic waves into a power source for sending wireless signals again, which not only has extremely weak power, but also presents random dynamic characteristics, greatly affecting the communication performance. Aiming at this problem, a scheme of configuring directional antennas in base station and node of multi-slot EH system is proposed to reduce the influence of attenuation and fading and improve EH efficiency of EH device, and the effective throughput based on maximum mutual information is proposed as the performance index of EH wireless communication. The exact theoretical formula of effective throughput index for the above scheme under Rayleigh channel fading is derived. The simulation results show that the directional antenna can effectively resist the signal attenuation and random fading, so that the wireless communication with multi-slot EH scheme can improve the effective throughput, and the communication delay can be reduced with fewer EH slots. [ABSTRACT FROM AUTHOR]

Copyright of Ordnance Industry Automation is the property of Editorial Board for Ordnance Industry Automation 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.)

One of the most pervasive challenges affecting human and planetary well-being is inadequate access to clean water and sanitation. Problems with water are expected to become worse in the coming decades, with water scarcity occurring globally, in the face of ever-growing populations, intensive human activities, and climatic variation. Addressing the aforementioned water security has been achieved consensus and has been included into the sustainable development goals (SDGs) set by the United Nations’ Agenda 2030. Despite these ample opportunities, it remains challenging to create reliable, sustainable, and affordable solutions to providing universal access to clean water and sanitation. In this context, the emerging artificial intelligence (AI) technology can be an attractive solution to help with this challenge. We summarized the core of the SDGs-Goal 6 (Clean Water and Sanitation) and the problems encountered during the progress to date. Building upon which, we conducted a literature review and provided a state-of-the-art analysis of leveraging AI to help achieving SDGs-Goal 6 alongside the resultant impacts. Afterwards, we highlighted the key issues necessary to be tackled in the coming years if AI is expected to be well applied with its maximum benefits. Plus, we put forward the prospects of future efforts on this revolution. [ABSTRACT FROM AUTHOR]

Copyright of Electronic Components & Materials is the property of Electronic Components & Materials 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 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 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.)

BACKGROUND: Masquelet technique is one of the effective methods to repair large bone defects. This technique requires the use of more autologous bone in the second stage of surgical treatment. However, the source of autologous bone is limited and the complications in the donor area are inevitable. How to reduce the use of autologous bone is an urgent problem to be solved. OBJECTIVE: By combining with the development status of induced membrane technology at home and abroad, this review introduced some effective methods to reduce the amount of autologous bone in induced membrane technology, including filling bone graft replacement materials and some special surgical methods. METHODS: The first author used a computer to retrieve the literature published in PubMed, CNKI and Wanfang databases from January 1996 to September 2019. The search terms were “Masquelet technique; induced membrane; bone transport technique; autologous bone; bone defect; bone graft; 3D printing; tissue engineering”. RESULTS AND CONCLUSION: Since the emergence of the Masquelet technique, the technique has been constantly improved and innovated by scholars. However, there is no international consensus on how to reduce the use of autologous bone in the second stage of Masquelet technique. At present, each of improvement methods has its own advantages and disadvantages, and clinicians need to choose according to objective conditions. The method proposed by Jong-Keon Oh, using gelfoam as the bone grafting center and the peripheral ring for bone grafting, is simple and practical. Tissue engineering technology has potential for development. With the further study of seed cells and scaffold materials, it will gradually replace the existing treatment schemes. According to the existing research, the research direction of Masquelet technique in the future can be roughly summarized into four directions: The improvement of membrane technology, the improvement of surgical methods, the application of combined materials, and the application of 3D printing and tissue engineering technology. These directions need further exploration and development by scholars. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Henan Agricultural Sciences is the property of Editorial Board of Journal of Henan Agricultural Sciences 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 Engineering Mechanics / Gongcheng Lixue is the property of Engineering Mechanics 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 Electronic Components & Materials is the property of Electronic Components & Materials 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 Xinyang Normal University Natural Science Edition is the property of Journal of Xinyang Normal University 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.)