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Copyright of Acta Prataculturae Sinica is the property of Acta Prataculturae 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.)

The size grading during fish farming benefits growth management and feed control, improving aquaculture efficiency. A guided live fish grading device was designed to solve the problem of high labor intensity and low efficiency in domestic live fish grading. The structural composition and working principle of the grading device were introduced, and the mechanical analysis and parameter design of the fish conveying mechanism were carried out. Based on the relationship between fish body mass and body shape parameters, the morphological data of experimental crucian carp were measured. Meanwhile, the power function fitting method was used to obtain the equation of the relationship between crucian body thickness and body weight, which serves as the basis for setting the distance between grading channels. When grading, the spacing between the guide plates on both sides of the grading channel is adjusted, and the grading channel is set to meet the fish specification requirements so that fish's body through the grading channel. Live fish grading performance experiment was carried out, with fish weight range of 0. 14-0. 33 kg and thickness range of 30-39 mm. Grading tests and effect analysis were conducted under three conditions of fish conveying speeds of 0. 15 m/ s, 0. 20 m/ s, and 0. 25 m/ s. The experimental results show that the grading accuracy can reach over 90% under normal conditions, and the appropriate grading speed and grading channel setting have higher efficiency. This guided grading device can quickly and accurately grade live fish, improving the efficiency of mechanized operations in the breeding process. [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.)

Reasonable support form and support parameters are the key to ensuring the stability of the roadway surrounding rock. The joint support effect of bolt + metal mesh + shot grouting in the Grade IV surrounding rock area of the drainage roadway of Julong Copper Mine in Xizang is poor. In this paper, for the problems of support in the Grade IV surrounding rock area of the drainage roadway of Julong Copper Mine, bolt and steel arch support, as well as the thickness of shot grouting, is introduced on the basis of the existing support. Different bolt support parameters are designed and optimized using finite element numerical simulation software. The results show that there is an obvious stress addition phenomenon at the roadway surrounding rock roof. With the increase of bolt support parameters, the maximum stress value at the roadway roof increases. With the increase of row spacing between bolts, the maximum displacement of the roadway roof increases, the bolt spacing increases from 1.2 m to 2.0 m, and the displacement of the roadway roof is 4 mm, 4.38 mm, and 4.82 mm, respectively. The optimal support parameter of the bolts is 1.6 m x 2.4 m. The results of the study provide theoretical references for the selection of the support parameters of the bolts of similar roadways. [ABSTRACT FROM AUTHOR]

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 Applied Mathematics & Mechanics (1000-0887) is the property of Applied Mathematics & Mechanics 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 construct the regulatory network of competitive endogenous RNA (ceRNA) and explore the molecular mechanism of ischemic stroke (IS) by using bioinformatic analysis to screen the differentially-expressed genes . Method: The expression profiles of miRNA, mRNA and lncRNA in IS were downloaded from the NCBI GEO database. Differentially-expressed miRNAs, lncRNAs, and mRNAs were identified by the limma package in R software. The prediction of the relationship of lncRNAmiRNA and miRNAmRNA were performed by starBase, miRDB and miRwalk databases. The results of prediction and differential analysis were taken to intersect and screened out differentiallyexpressed target mRNA (DETmRNAs), Kyoto Encyclopedia of Genes and Genomes (KEGG)and gene ontology (GO) enrichment analysis was performed by using the DAVID database. The protein-protein interaction (PPI) network was constructed by using the STRING database and the core target genes in the network were identified by Cytoscape software. Result: A total of 20 differentially-expressed miRNAs, 1512 lncRNAs, and 278 mRNAs were identified, and a ceRNA network was successfully constructed with the interactions of 5 lncRNAs-6 miRNAs-102 mRNAs in IS. The 285 DETmRNAs functions are mostly involved in the biological process such as chromatin organization, negative regulation of phosphoprotein phosphatase activity, or cell cycle. KEGG mainly enriched the signaling pathway including leukocyte transendothelial migration and platelet activation. The top 10 core genes were CREB1, MAPK1, GSK3B, SP1, PIK3R1, NR3C1, NCOR1, NFATC1, SETD2, and NSD1. Conclusion: The construction of the ceRNA network can help to further understand the molecular mechanism of IS and screen potential biomarkers, providing clues to further define rehabilitation targets and develop rehabilitation strategies. [ABSTRACT FROM AUTHOR]

Copyright of Acta Scientiarum Naturalium Universitatis Pekinensis is the property of Editorial Office of Acta Scientiarum Naturalium Universitatis Pekinensis 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 Acta Scientiarum Naturalium Universitatis Pekinensis is the property of Editorial Office of Acta Scientiarum Naturalium Universitatis Pekinensis 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 Machine Tool & Hydraulics is the property of Guangzhou Mechanical Engineering Research Institute (GMERI) 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 Science & Technology (0253-2336) is the property of Coal 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 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.)

Objective To investigate the correlation of peripheral blood lymphocyte, T-cell, Th-cell, and Ts-cell counts with the development of checkpoint-inhibitor-related pneumonitis in NSCLC. Methods The clinical data of 85 patients with NSCLC treated with immune checkpoint inhibitors (ICIs) were retrospectively analyzed. Paired t-test was used to analyze lymphocyte changes. ROC curves were utilized to analyze predictive performance. The Spearman correlation coefficient test was conducted to analyze the linear relationship between lymphocyte changes and CIP grade. Results A statistically significant decrease in lymphocyte, T-cell, Th-cell, and Ts-cell counts from the baseline was observed in patients at the onset of CIP (P<0.05), whereas no such change was observed in the control group. ROC curve analysis revealed AUCs of 0.867, 0.843, 0.865, and 0.843 for lymphocyte, T-cell, Th-cell, and Ts-cell counts, respectively. A linear relationship was found between the percentage decrease in lymphocyte, T-cell, and Ts-cell counts from the baseline and the severity of CIP (P<0.05). Conclusion Decreased lymphocyte, T-cell, Th-cell, and Ts-cell counts have a predictive value for the development of CIP, and the lymphocyte count change has the greatest predictive value. The percentage decrease in lymphocyte, T-cell, and Ts-cell counts from the baseline is correlated with the severity of CIP. [ABSTRACT FROM AUTHOR]

Copyright of South China Fisheries Science is the property of South China Fisheries 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 Journal of High Pressure Physics is the property of Chinese Journal of High Pressure Physics 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 Coal Science & Technology (0253-2336) is the property of Coal 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 Water Conservancy & Electric Power Technology & Application is the property of Omniscient Pte. 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.)

Electrochemistry is an important tertiary subject in physical chemistry, and the classical content of electrochemistry has become an indispensable part of physical chemistry textbooks. This paper presents a comparative study of the contents of electrochemistry sections in 13 representative physical chemistry textbooks at home and abroad, and analyzes them from several perspectives, including their teaching concepts, organization of teaching contents, selection of teaching contents, and introduction of new knowledge, which are of certain reference value for the preparation and teaching of electrochemistry sections in physical chemistry textbooks. [ABSTRACT FROM AUTHOR]

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular 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 World Nuclear Geoscience is the property of World Nuclear Geoscience 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 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 Coal Science & Technology (0253-2336) is the property of Coal 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.)

To solve the need for automatic counting of fishery breeding and transportation, a fish identification algorithm design and programming based on machine vision is proposed. Using digital image recognition and classification technology, proved that Scale Invariant Feature Transform SIFT and Speed Up Robust Feature SURF algorithm can effectively detect and label fish image feature points. A Fast Library for Approximate Nearest Neighbors FLANN matching algorithm is designed to test rotation and generalized fish target finding based on image features proving that the SURF feature is good for individual detection and SIFT feature is good for generalization target detection. In view of the fragmentation characteristics of FLANN image feature matching, combined with the actual situation of image information area aggregation, and using the template detection method for reference, a template detection algorithm for image segmentation scanning and feature matching is designed; using Maximally Stable Extremal Regions MSER method to eliminate the redundancy of the recognition results, test result proved that the algorithm can correctly identify the multi-fish target. This study found that the algorithm and software could successfully identify multiple fish targets in the images, with good test results and strong practical implications. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Northeast Petroleum University is the property of Journal of Northeast Petroleum 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.)

Copyright of Water Conservancy & Electric Power Technology & Application is the property of Omniscient Pte. 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.)

目的 探讨富血小板血浆（platelet-rich plasma, PRP）在治疗老年慢性难愈创面中的临床效果。方法 自 2020 年 4 月至 2021 年 12 月，泰兴市人民医院烧伤整形科收治 58 例老年慢性难愈创面患者，按照治疗方法分为 PRP 组（27 例）和对照 组（31 例），PRP 组创面行 PRP 治疗，对照组行碱性成纤维细胞生长因子治疗。1 周后测定创面内肉芽组织内皮细胞生长因子 （vascular endothelial cell growth factor, VEGF）和表皮生长因子（epidermal growth factor, EGF）的含量，观察一个月后的创面愈合率， 比较两种方法的疗效。结果 治疗 1 周后两组患者创面内肉芽组织 VEGF、EGF 含量较治疗前均有提高，且 PRP 组升高更 明显，差异具有统计学意义（P＜0.05）。治疗 1 个月后，PRP 组的创面愈合率明显高于对照组，差异具有统计学意义（P＜ 0.05）。结论 相对于外源性碱性成纤维细胞生长因子，PRP 能显著提高老年慢性难愈创面组织相关生长因子的含量，有效地促 进创面愈合。 [ABSTRACT FROM AUTHOR]

Copyright of Southwest China Journal of Agricultural Sciences is the property of Editorial Department of Southwest China Journal of 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 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.)

To investigate the efficacy of 3D laparoscopic radical gastrectomy for advanced gastric cancer and its effect on serum exosome Dicer and Phosphatase and tensin homolog deleted on chromosome ten (PTEN). A total of 60 patients with advanced gastric cancer treated in our hospital from July 2018 to May 2021 were selected as the research subjects. According to 1:1 random envelope lottery, the patients were divided into 3D group and laparotomy group, with 30 patients in each group. The open group was treated with open surgery, and the 3D group was treated with 3D laparoscopic radical gastrectomy. The surgical indications, complications, visual analog scales (VAS) score and Dicer and PTEN expressions of the two groups were compared and analyzed. There were no difference in the operation time and the number of lymph node dissections compared between the two groups(P>0.05). The postoperative exhaust time, postoperative gastric tube removal time, surgical incision length, the amount of bleeding, postoperative hospital stay, and surgery in the 3D group were less than that of the open group (P<0.05). The incidence of complications such as anastomotic bleeding, anastomotic leakage, gastroparesis, incision infection, and venous thrombosis in the 3D group at 14 days after operation were lower than the open group (P<0.05). The VAS scores of the 3D group at 1 d, 7 d and 14 d after operation were lower than those of the open group (P<0.05). The relative expression levels of serum exosomes Dicer and PTEN at 14 d after operation in the two groups were higher than that at 1d before operation (P<0.05), the 3D group were higher than the open group (P<0.05). All patients were followed up until November 1, 2021. The average follow-up time were (17.92± 0.22) months. The recurrence rate of the 3D group were 3.33 %, which were lower than the 20.00 % of the open group (P<0.05). 3D laparoscopic radical gastrectomy for patients with advanced gastric cancer can promote the secretion of serum exosome Dicer and PTEN without increasing the complexity of surgery, and can also promote the recovery of patients, reduce complications, relieve patients' pain, and reduce the recurrence rate during follow-up. [ABSTRACT FROM AUTHOR]

Copyright of Applied Mathematics & Mechanics (1000-0887) is the property of Applied Mathematics & Mechanics 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 Journal of Oral & Maxillofacial Surgery is the property of Shanghai Jiao Tong University, College of Stomatology 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 Heilongjiang University of Science & Technology is the property of Journal of Heilongjiang 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.)

Objective: To analyze the short-term efficacy of the anterior middle approach for laparoscopic rectal cancer and the group 253 lymph node dissection. Methods: A total of 80 cases of rectal cancer, who were diagnosed and treated in Jiangsu Provincial Hospital of Traditional Chinese Medicine from June 2017 to June 2020, were selected and were divided into middle group(n=42) and lateral group (n=38) according to the different surgical approaches. Results: All the patients were treated with laparoscopic rectal cancer resection, the middle group was received the anterior approach and the lateral group, received the lateral approach. The short-term efficacy and the group 253 lymph nodes dissection effects were recorded and followed up. All the patients underwent smooth operation, and there was no tension in the mesentery and intestine after anastomosis. The group 253 lymph node dissection time in the middle group was less than that in the lateral group (P<0.05), and there was no statistical difference in the number of group 253 lymph node dissection between the two groups (P>0.05). There was no significant difference in the operation time and intraoperative blood loss between the two groups (P>0.05). The postoperative anal first exhaust time, postoperative drainage tube removal time, and postoperative hospital stay in the middle group were significantly less than those in the lateral group (P<0.05). The postoperative 9 months of incidences of complications such as intestinal obstruction, anastomotic leakage, anastomotic bleeding, and wound infection in the middle group was 4.8 %, which was significantly lower than that(23.7 %) in the lateral group (P<0.05). All the patients were followed up for 9 months, and the recurrence rate of the middle group was 2.4 %, which was significantly lower than that (15.8 %) of the lateral group (P<0.05). Conclusion: The application of the anterior middle approach in patients with laparoscopic rectal cancer can improve the cleaning efficiency of the group 253 lymph node, promote the recovery of patients, reduce the incidence of postoperative complications, and reduce the short-term recurrence rate. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Architecture & Civil Engineering is the property of Chang'an Daxue Zazhishe 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 High Pressure Physics is the property of Chinese Journal of High Pressure Physics 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 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.)