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Copyright of Railway Investigation & Surveying is the property of Railway Investigation & Surveying 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.)

随着饲养管理模式的逐步完善，圈养大熊猫（Ailuropoda melanoleuca）的繁殖率、幼崽存活率以及福利水平稳步提升。目前，关于动物个性的研究逐渐在行为生态学领域受到重视，且已有研究结果表明大熊猫个体间存在个性特征差异。在此背景下，梳理了国内外关于圈养大熊猫个性研究、应激反应及相关内容，讨论了个性差异与应激水平的关系，以期为进一步改善圈养大熊猫个体福利状况提供新的方向。

Copyright of China Mining Magazine is the property of China Mining Magazine 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 Psychological Science is the property of Psychological 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 Journal of Xi'an Jiaotong University (Medical Sciences) is the property of Xian Jiaotong 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.)

Copyright of Journal of Modern Laboratory Medicine is the property of Journal of Modern Laboratory Medicine 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 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 Xi'an Jiaotong University is the property of Editorial Office of Journal of Xi'an Jiaotong 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.)

对成都大熊猫繁育研究基地来自不同产区的大熊猫常用竹笋进行了营养成分分析,结果表明:相对于竹叶、竹茎,竹笋是一种粗蛋白(CP)含量较高(30%左右),粗纤维(CF)和粗脂肪(EE)含量较低(分别为15%和2%左右),矿物元素(Mineral element)含量丰富的大熊猫优质食物。但竹笋存在钙(Ca)、磷(P)含量比例与生理需要不符,氨基酸比例与理想蛋白模式有一定差异等不足。针对竹笋的营养特点,对圈养大熊猫大量长期食用竹笋的饲养策略和营养供给进行了讨论。

Copyright of Journal of Jinan University (Social Science Edition) is the property of Jinan 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.)

3只圈养大熊猫在按正常剂量口服伊维菌素(Ivermectin)进行常规体内外寄生虫病预防时突然发生中毒性休克反应,临床主要表现为:全身松软无力、可视粘膜苍白、四肢冰凉伴阵发性痉挛、呼吸微弱浅表、心率缓慢伴节律不齐、眼球深陷、瞳孔缩小至针尖样大小、四肢对疼痛刺激无应答。根据休克性疾病的发生发展机理采取了抗休克治疗措施,3只大熊猫在分别经过长达65 h、56 h和45 h连续不间断的综合抢救措施后最终得以康复。不仅对大熊猫伊维菌素中毒性休克的临床表现和抢救措施进行了简要描述,并对休克的发生原因进行了相关分析,最终认为:大熊猫口服伊维菌素后发生的中毒性休克与有机磷中毒无关,也与类似于柯利牧羊犬的多药拮抗蛋白(MDR)基因缺陷无关,但极可能与某种未知寄生虫感染相关。

Copyright of Geomatics & Information Science of Wuhan University is the property of Geomatics & Information Science of Wuhan 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.)

Copyright of Journal of Chongqing University of Technology (Natural Science) is the property of Chongqing 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 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 Systems Engineering & Electronics is the property of Journal of Systems Engineering & Electronics 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.)

This paper presents a set of test methods for evaluating the performance of active knee-assisted exoskeleton. A motor-driven assist model is established to calculate the theoretical assist efficiency of exoskeleton knee joints. Six healthy examinees are selected to measure comprehensive metabolic indexes of the human body and lower limb muscle activity under the condition of wearing and not wearing exoskeleton. The results of the comprehensive metabolic cost test of the human body showthat, compared with the experiment without wearing the exoskeleton, examinees wearing the exoskeleton see an increase of oxygen consumption of the human body by 3.21% on average, an increase of exhalation of carbon dioxide by 1.27% on average, and an increase of net metabolic power per unit mass by 2.80% on average. The results of the lower limb muscle activity test show that, compared with the experiment without exoskeleton, wearing exoskeleton can effectively reduce the muscle activity of rectus femoris, vastus lateralis and vastus medialis. A controlled weight-bearing test is designed, and the results prove that the weight of the exoskeleton itself cannot be ignored, which increases the comprehensive metabolic cost of the examinees. The exoskeleton can effectively reduce the activity of the wearer’s lower limb muscles, which is basically in line with the theoretical assisting efficiency of exoskeleton knee joints, and the overall power-assisting efficiency is not obvious due to the weight of the wearer. [ABSTRACT FROM AUTHOR]

随着半导体工艺技术的快速发展、集成电路（IC）规模越来越大、复杂度越来越高,电子设计自动化（EDA）工具也日益复杂,如何借助工具提高设计效率已经成为业界广泛关注的问题。文章介绍了一种基于工具命令语言（TCL）构建的用于搭建IC设计流程自动化环境的系统框架,并详细说明了其实现方法,利用该框架可方便地定制各种IC设计自动化流程,提高工作效率。

BACKGROUND: Peripheral nerve injury is a common clinical trauma. At present, the end-to-end anastomosis was commonly used in the treatment of short-distance nerve injury, whereas graft bridging was required in the long-distance nerve injury. Schwann cell-derived exosomes could elevate neuronal survival, improve the regeneration microenvironment, promote axonal regeneration, and have a good application prospect in the field of peripheral nerve injury and repair. OBJECTIVE: To review the research progress of Schwann cell-derived exosomes in repair and regeneration after peripheral nerve injury. METHODS: The relevant articles published from 2000 to 2022 were searched from PubMed, Wanfang, and CNKI databases by computer. The Chinese and English search terms were “Schwann cell, exosomes, vesicles, peripheral nerve, sciatic nerve”. The preliminary searched articles were screened according to the inclusion and exclusion criteria, and a total of 52 articles were included for in-depth analysis. RESULTS AND CONCLUSION: (1) The proliferation and migration of Schwann cells play an important role in the repair and regeneration after peripheral nerve injury. Schwann cells could promote the regeneration and repair of injured peripheral nerves through a variety of signal transduction pathways. (2) Exosomes could mediate intercellular communication by transferring bioactive substances to maintain normal physiological processes, which had a great potential in the treatment of peripheral nervous system damage. (3) Schwann cell-derived exosomes played a role in promoting regeneration and repair of peripheral nerve injury by participating in axon regeneration and growth regulation so as to provide a new therapeutic strategy for peripheral nerve injury. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Medical Equipment Journal is the property of Chinese Medical Equipment Journal 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.)

BACKGROUND: The clinical application of hip arthroplasty not only improves the quality of life and lower limb function of patients with femoral neck fracture, but also reduces the mortality of patients. However, the postoperative rehabilitation technology of patients is single, the distribution of rehabilitation doctors is uneven, and the efficacy of the whole population is unknown. Therefore, the application of rehabilitation robot in hip arthroplasty is an effective and safe way. OBJECTIVE: To explore effect of multi-scene rehabilitation mode based on balance disorder rehabilitation-assisted robot on lower limb function of the elderly after total hip arthroplasty. METHODS: A total of 60 patients aged over 60 years old who underwent total hip arthroplasty after femoral neck fracture were recruited from the Orthopedic Ward of Chinese PLA General Hospital and the Affiliated Hospital of Chengdu University from January to June 2021. The patients were randomly divided into study group (n=30) and control group (n=30). The control group was trained by traditional physical therapy combined with walking rehabilitation model of balance disorder rehabilitation-assisted robot, and the study group was trained by traditional physical therapy combined with multi-scene rehabilitation model of balance disorder rehabilitation-assisted robot. After 16 weeks of training, peak torque value data and hip motion data were collected. After 8, 12, and 16 weeks, Berg Scale score and Fugl-Meyer score were collected. RESULTS AND CONCLUSION: (1) One case in each of the two groups dropped out, and the remaining 58 cases had no accidental injury during the training and successfully completed the training treatment. (2) At 16 weeks after training, the range of motion of hip joint in the study group was less than that in the control group (P < 0.05). The peak torque of the hip joint in the study group was greater than that in the control group (P < 0.05). (3) With the extension of training time, Berg score and Fugl-Meyer score were increased in both groups. Under the same training time, Berg score and Fugl-Meyer score were higher in the study group than those in the control group (P < 0.05). (4) It is concluded that under the same training time, the effect of balance disorder rehabilitationassisted robot on lower limb function rehabilitation of the elderly after total hip arthroplasty was better in the multi-scene rehabilitation training mode than in the weight-loss walking training mode, but it showed a trend of fast recovery in the early stage of rehabilitation and slow recovery in the late stage of rehabilitation. [ABSTRACT FROM AUTHOR]

In the future, the number of the terminal airspace in China will increase year by year, according to the data, the airspace resources in the terminal area are not proportional to the growth of flight flow, and the flow in the terminal area tends to be saturated. In order to effectively improve the efficiency of terminal area operation, ensure the safe flight of aircraft in its airspace, reduce the load of controllers and the operation cost of the company, a multi airport terminal area Aircraft Arrival collaborative sequencing model was established from three directions: aircraft delay, controller load and resource balance of each airport. Firstly, the interrelated factors of the terminal area system were obtained through the study of the scope of the terminal area, the main problems of operation and the analysis of the airspace structure. Secondly, the corresponding commonalities, high impact operation system correlation factors, relevant constraints and main solution objectives were obtained through the separate analysis of the routes and intersections of aircraft entering the terminal area. Finally, the model was solved by non-dominated sorting genetic algorithm Ⅱ(NSGA-Ⅱ) algorithm combined with simulated annealing algorithm(SAA). The results show that the solution of the model based on the improved genetic algorithm is compared with the first come first serve model and the unmodified genetic algorithm, the efficiency is improved by 26. 3% and 53. 2% respectively. It can be seen that the efficiency of aircraft sequencing can be greatly improved through the proposed model. [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 Chinese Medical Equipment Journal is the property of Chinese Medical Equipment Journal 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 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 China Sciencepaper is the property of China Sciencepaper 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 Journal of Harbin Institute of Technology. Social Sciences Edition / Haerbin Gongye Daxue Xuebao. Shehui Kexue Ban is the property of Harbin Institute 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 Computer Measurement & Control is the property of Magazine Agency of Computer Measurement & Control 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 Mechanical Engineering is the property of Editorial Board of China Mechanical 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 Journal of Remote Sensing is the property of Editorial Office of Journal of Remote Sensing & Science Publishing Co. 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 Harbin Institute of Technology. Social Sciences Edition / Haerbin Gongye Daxue Xuebao. Shehui Kexue Ban is the property of Harbin Institute 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.)

Objective To investigate the effects of rat bone marrow-derived mesenchymal stem cells (MSCs) on invasiveness of rat liver carcinoma cell line RH-35 in vitro. Methods Rat bone marrow-derived MSCs were isolated by density gradient centrifugation; the isolated cells expanded ex vivo and the supernatant were collected. The supernatant was then added to the culture medium of RH-35 cells. After incubation for 72 h, the invasiveness of the cancer cells was measured by Transwell assay，the mRNA and protein levels of Snail and MMP-9 expressions were also evaluated by Real-time PCR and Western blot. Results Cultured MSCs presented in a uniform spindle morphology，and the cells also had a good ability of osteogenic and adipogenic differentiation. Co-culture of RH-35 with 500 mL/L MSC conditioned medium (MSC-CM) significantly enhanced in vitro invasiveness. In addition, compared with the control group, MSC-CM could significantly promote the expressions of Snail and MMP-9 of RH-35 cells at both the mRNA and protein levels (P < 0 .05). Conclusion MSCs can enhance the invasiveness of liver carcinoma cell line RH-35 in vitro probably by upregulating Snail and MMP-9. [ABSTRACT FROM AUTHOR]