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Copyright of China Cultural Heritage is the property of Chinese Academy of Cultural Heritage 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 Henan University of Science & Technology, Natural Science is the property of Editorial Office of Journal of Henan 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 Feed Research is the property of Editorial Board of Feed 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.)

Objective To evaluate the influencing factors for severe absolute lymphatic count (ALC) reduction during concurrent chemoradiotherapy (CCRT) in patients with esophageal squamous cell carcinoma (ESCC), to develop a predictive model for severe ALC reduction during CCRT in patients with ESCC, and to validate its efficacy. Methods Clinical baseline data, radiotherapy regimen, and radiotherapy dosimetry parameters were collected from 286 ESCC patients who underwent CCRT. Trends in ALC during CCRT were analyzed based on pre-treatment ALC and weekly ALC during treatment. Patients were divided into the severe ALC reduction group and non-severe ALC reduction group according to whether severe ALC reduction occurred during CCRT. We compared the above information between the two groups, and screened the independent risk factors for severe ALC reduction during CCRT in ESCC patients by multifactorial Logistic regression analysis, constructed the risk prediction model based on risk factors, and plotted a nomogram (nomogram model). Receiver operating characteristics (ROC) curve, consistency index (C-index), calibration curve, and decision analysis (DCA) curve were used to assess the discrimination, consistency, calibration, and clinical applicability of the nomogram model. Results ESCC patients showed a gradual decrease in ALC during CCRT (P＜0. 05). Statistically significant differences were found in BMI, pre-treatment ALC, mean vertebral dose (MVD), and estimated dose of circulating immune cells (EDIC) between the two groups (all P＜0. 05). BMI (OR=0. 829, 95%CI:0. 760-0. 900), pretreatment ALC (OR=0. 412, 95% CI:0. 253-0. 648), MVD (OR=1. 079, 95% CI:1. 011-1. 155) and EDIC (OR=1. 711, 95%CI:1. 422-2. 292) were independent influencing factors for severe ALC reduction during CCRT in ESCC patients (all P＜0. 05). A nomogram model was constructed based on the above risk factors. The area under the ROC of the nomogram model in predicting the occurrence of severe ALC reduction during CCRT was 0. 799 (95% CI:0. 748-0. 850), the C-index was 0. 789, and the predicted risk of ALC reduction was consistent with the risk of the actual occurrence;the prediction of severe ALC reduction had good clinical applicability in the probability range of 0. 25 to 0. 90. Conclusions The independent influencing factors for severe ALC reduction during CCRT in ESCC patients are BMI, pretreatment ALC, MVD, and EDIC, and the nomogram model for predicting severe ALC reduction during CCRT in ESCC patients based on the above mentioned influencing factors has good differentiation, consistency, calibration, and clinical applicability. [ABSTRACT FROM AUTHOR]

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

Objective To investigate the application value of transumbilical single-site laparoscopic surgery combined with early postoperative enteral nutrition (EEN) in rapid recovery of congenital duodenal obstruction. Methods Clinical data of 87 children with duodenal obstruction were analyzed. The children who received three-hole laparoscopic treatment were classified as the three-hole group (n=39), and children who received transumbilical single-site laparoscopic treatment were divided into the single-hole group (conventional feeding, n=26) and the single-hole EEN group (EEN, n=22) according to different postoperative feeding methods. The differences of operation time, postoperative intestinal function recovery time, hospital stay and cost, laboratory indicators and complications were compared between the three groups. Results There was no significant difference in operation time between the three groups (P＞0.05). There were no significant differences in the time of initial enteral nutrition, the time to total enteral nutrition, the time of first defecation, the time of postoperative hospitalization, the cost of hospitalization and levels of albumin (ALB), hemoglobin (Hb) and C-reactive protein (CRP) one week after surgery between the single-hole group and the three-hole group (P＞0.05). The time of initial enteral nutrition, the time of total enteral nutrition, the time of first defecation, the time of postoperative hospitalization were significantly shortened in the single-hole EEN group than those of the single-hole group (P＜0.05), and the Hb level was higher one week after surgery (P＜0.05). There were no significant differences in hospital expenses, ALB and CRP levels one week after surgery between the two groups (P＞0.05). During follow-up after discharge, there was one case of recurrent intestinal torsion in the single-hole group and the three-hole group, which were cured after re-operation. Conclusion In the treatment of neonatal duodenal obstruction, transumbilical single-site laparoscopic surgery combined with early enteral nutrition is safe, feasible and effective, which can promote early postoperative recovery. The abdominal incision is hidden, which has good clinical application value. [ABSTRACT FROM AUTHOR]

When the meta-heuristic algorithm solves the joint resource allocation problem of multi-beam satellites, the computational complexity increases and the algorithm is difficult to converge due to the time delay constraint and capacity constraint. This paper introduced a penalty mechanism in the objective function, and added a penalty value to the objective function of the invalid solution, so that the optimized solution adaptively satisfied these two constraints. Based on this, this paper proposed a joint resource allocation algorithm based on quantum-behaved particle swarm optimization. Simulation results show that the introduction of the penalty strategy solves the problem of difficulty in handling the delay constraint and capacity constraint when applying the meta-heuristic algorithm. The quantum-behaved particle swarm optimization algorithm with penalty mechanism outperforms the existing joint allocation algorithm in terms of allocation fairness index and total system capacity. [ABSTRACT FROM AUTHOR]

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.)

Copyright of Light Industry Machinery is the property of Light Industry Machinery 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 Geography & Geographic Information Science is the property of Geography & Geo-Information 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 Fire Safety Science is the property of Fire Safety 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.)

: Net carbon sink from land-use change has been one of the most important factors on the process of cultivated land use. The comprehensive zoning optimization of cultivated land use can be an effective way to realize the green and sustainable development of agriculture and improve the net carbon sink level of cultivated land use in China. A theoretical basis can also be provided for the protection of cultivated land at the national level, and the optimal allocation of cultivated land resources. In this study, the trend of net carbon sink of cultivated land use was estimated in 31 Provinces (cities and districts) in China from 2005 to 2020, particularly from the perspective of carbon source and carbon sink of cultivated land use. The dynamic evolution and interval difference were analyzed using Kernel density estimation. The decoupling effect was also established between the net carbon emission of cultivated land and agricultural economy. After that, the comprehensive zoning of cultivated land use was optimized to combine with the decoupling and characteristics in the main grain producing areas. A Grey Model (GM) was utilized to predict the change trend and decoupling status of net carbon sink in each comprehensive zoning from 2021 to 2035. The results showed that: 1) There was a fluctuating upward trend for the net carbon sink of cultivated land use, with an average annual growth rate of 3.740% in the study period. The spatial difference of carbon sink capacity was much better in the main grain producing areas, compared with the rest. 2) Kernel density estimation shows that the regional gap of net carbon sink of cultivated land use was gradually narrowing. However, there was still a regional imbalance. The main grain producing areas, the balance of production and marketing areas, and the main sales areas all showed a trend of diffusion to the high-value carbon sink areas. 3) There was the mainly strong decoupling between the net carbon emissions from the cultivated land use and agricultural economy in the study period. A comprehensive zone was achieved for the coordination of economic and ecological benefits in the most provinces (cities and districts), except for Beijing, Shanghai, Guangdong and Hainan in 2020. 4) The GM predicted that the carbon sink capacity of cultivated land use would maintain a steady growth from 2021 to 2035, and there was the strong decoupling status of each comprehensive zone. Consequently, it is very feasible for the unification of economic and ecological benefits in the future cultivated land use. The finding can also provide a strong reference and guidance for the “double carbon” goal in the field of cultivated land. Finally, the targeted optimization strategies and directions can be greatly contribute to the coordinated development of economic and ecological benefits of cultivated land use in the whole country and various comprehensive divisions, in order to achieve low-carbon, green, and high-quality development of cultivated land use. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Ecology & Rural Environment is the property of Journal of Ecology & Rural Environment 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.)