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区块链技术给数据共享中的数据确权、数据溯源、数据可信、数据可用等方面提供了新思路，但数据共享中的隐私数据安全仍面临许多挑战。首先回顾当前基于区块链的数据共享研究现状；然后提出一种隐私数据安全共享模型，通过函数加密技术对隐私数据进行加密，结合零知识证明技术生成相关计算的可信证明，实现“数据可用不可见”的安全可靠的数据共享。实验结果显示，该模型的共享时延及经济开销均在可接受范围内，证明了该模型的安全性和可行性。

Copyright of Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue is the property of Beijing Research Institute of Mining & Metallurgy Technology Group 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.)

Federated learning can protect the data privacy of edge devices in collaborative training of edge devices. In the general FL scenarios, the participants of FL are usually composed of heterogeneous edge devices, where resource constrained devices will consume more time, resulting in the decline of the training speed. The existing schemes either ignore stragglers, or distribute the computing tasks according to the distributed idea, but the distribution process involves the transmission of raw data, which cannot guarantee data privacy. To alleviate the straggler problem in small or medium-sized multiple heterogeneous devices scenario, this paper proposes a coding-based FL scheme, and designs an efficient scheduling algorithm combined with the mathematical characteristics of linear coding to ensure data privacy and accelerate the speed of heterogeneous FL system. Meanwhile, the experimental results completed in the actual experimental platform show that when the performance difference between heterogeneous devices is large, the coding based FL scheme can shorten the training time of the straggler by 92.85%. [ABSTRACT FROM AUTHOR]

Objectives: High resolution satellite images (HRSI) can provide spectral characteristics observation information of ground objects at low cost and high frequency, while light detection and ranging(LiDAR) point clouds can provide fine geometric structure. The fusion of two kinds of data can realize complementary advantages, and further improve the accuracy and automation of ground object classification and information extraction. The realization of geometric registration with sub-pixel accuracy is the premise of two kinds of data fusion. Methods: A fast registration method based on line element distance transformation model is proposed. The point clouds are used as the control source, and the typical line elements such as building edges in the point clouds are projected into the image space through the initial rational polynomial coefficient (RPC) parameters of the satellite image, and the iterative closest point registration is carried out with the line elements in the satellite image, so as to achieve geometric registration by means of refining RPC parameters. In this method, the distance transformation model is used as the search table of the iterative closest point, which greatly improves the operation efficiency. Furthermore, the latest progressive robust solution strategy is adopted at the same time of the closest point iteration, so as to ensure the robustness of registration in the case of too much noise. Registration experiments are carried out on GeoEye-2 data, Gaofen-7 data,WorldView-3 data with LiDAR point clouds data. Results: The results prove that the proposed method can achieve a registration accuracy of 0.4—0.7 m on three kinds of images by using the ground control points which are accurately measured and the operator's internal control points as checkpoints. Conclusions: It is significantly better than the strategy of mapping point clouds to 2D image and registering through multimode matching. [ABSTRACT FROM AUTHOR]

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

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

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

Copyright of Big Data Research (2096-0271) is the property of Beijing Xintong Media Co., Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Promoting the development of the Yangtze River Economic Belt is one of the major regional development strategies of China. The leading role of the high-quality development of the Yangtze River Economic Belt lies in the implementation of policies that at⁃ tach priority to ecological and green development, and the green transformation of the manufacturing industry is an essential part of it. Based on the data of 107 prefecture-level cities in the Yangtze River Economic Belt from 2003 to 2019, this study used the difference indifferences model and the mediation effect model to empirically study the impact of high-speed rail service on the green transformation of the manufacturing industry and its transmission mechanism. The research results showed that: ① The availability of high-speed rail service in the Yangtze River Economic Belt significantly promoted the green transformation of the manufacturing industry in cities along the railway lines. This effect held after a series of robustness tests, such as the parallel trend test, the placebo test, and the instrumental variable regression. ② This impact had significant differences among different regions, different tiers of cities, and cities in different geographical locations. Specifically, the impact of high-speed rail service on urban agglomerations in the western region, municipalities and provincial capitals, and non-riverside cities was more significant. ③ The high-speed rail service in the Yangtze River Economic Belt could promote the green transformation of the manufacturing industry by accelerating the flow of high-end factors such as hu⁃ man capital and R&D capital along the lines. However, the high-speed rail service has not yet significantly released the railway freight capacity, and the intermediary role of logistics needs to be further exerted. This study suggests that we should: ① steadily promote the construction of high-speed rail facilities in the Yangtze River Economic Belt and accelerate the transformation of existing lines; ② ad⁃ here to the implementation of the system concept, accelerate the adjustment of the transportation structure, and promote the develop⁃ ment of green logistics; and ③ strengthen policy guidance, actively explore regional linkage mechanisms, and promote the balanced development of cities in different regions and cities of different types. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Inorganic Analytical Chemistry / Zhongguo Wuji Fenxi Huaxue is the property of Beijing Research Institute of Mining & Metallurgy Technology Group 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.)

Objective: To investigate the effects of Qingfei Huatan Decoction on lung injury related to acute pancreatitis in rats by intragastric administration. Methods: In this study, 45 SD rats were randomly divided into 3 groups-normal control group (15 rats), model group (15 rats), Qingfei Huatan group (15 rats). The model group and the Qingfei Huatan group were established lung injury related to acute pancreatitis model; the control group was only opened the abdomen and turned the pancreatic tissue slightly and sutured it. The Qingfei Huatan group was given the Qingfei Huatan Decoction 0.6 mL/100 g by gavage 2 hours before model building, and the control group and the model group were given the same amount of normal saline by gavage. Results: The serum amylase, IL-6, and IL-8 levels of the model group and the Qingfei Huatan group 24 h, 36 h, and 48 h after modeling were higher than those of the control group (P<0.05), and the Qingfei Huatan group was lower than the model group (P<0.05). The lung tissue pathology score and the relative expression level of Caspase-3 protein 24 h, 36 h, and 48 h after modeling of the model group and the Qingfei Huatan group were higher than those of the control group (P<0.05), and the Qingfei Huatan group was lower than the model group (P<0.05). Conclusion: Qingfeihuatan Decoction can regulate lung cell apoptosis and inhibit the release of inflammatory factors in the treatment of acute pancreatitis related lung injury in rats, thereby reducing lung injury and improving the condition of rats. [ABSTRACT FROM AUTHOR]

生化实验教学是培养医科类各专业学生创新能力和实践能力的重要教学途径之一,大学生开放实验室不仅能满 足大学生创新能力培养的条件,还能促进生化实验教学改革。作者立足于大学生生化实验室开放的实际情况,分析广州医科大学 的生化实验教学改革和大学生开放实验室的必要性,通过结合医科类各专业的特点,建立中心实验室预约系统、实验内容、实验主 体开放的多项目交叉融合的全开放实验室教学模式。作者初步探索了培养学生创新实践能力的有效途径,推动了生化实验教学 改革,并介绍了建立开放实验室取得的成果 [ABSTRACT FROM AUTHOR]

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.)

Copyright of Journal of Clinical Hepatology / Linchuang Gandanbing Zazhi is the property of Journal of Clinical Hepatology 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.)

Alteration of synaptic function in the dorsal horn (DH) has been implicated as a cellular substrate for the development of neuropathic pain, but certain details remain unclear. In particular, the lack of information on the types of synapses that undergo functional changes hinders the understanding of disease pathogenesis from a synaptic plasticity perspective. Here, we addressed this issue by using optogenetic and retrograde tracing ex vivo to selectively stimulate first-order nociceptors expressing Nav1.8 (NRs Nav1.8 ) and record the responses of spinothalamic tract neurons in spinal lamina I (L1-STTNs). We found that spared nerve injury (SNI) increased excitatory postsynaptic currents (EPSCs) in L1-STTNs evoked by photostimulation of NRs Nav1.8 (referred to as Nav1.8-STTN EPSCs). This effect was accompanied by a significant change in the failure rate and paired-pulse ratio of synaptic transmission from NRs Nav1.8 to L1-STTN and in the frequency (not amplitude) of spontaneous EPSCs recorded in L1-STTNs. However, no change was observed in the ratio of AMPA to NMDA receptor-mediated components of Nav1.8-STTN EPSCs or in the amplitude of unitary EPSCs constituting Nav1.8-STTN EPSCs recorded with extracellular Ca 2+ replaced by Sr 2+ In addition, there was a small increase (approximately 10%) in the number of L1-STTNs showing immunoreactivity for phosphorylated extracellular signal-regulated kinases in mice after SNI compared with sham. Similarly, only a small percentage of L1-STTNs showed a lower action potential threshold after SNI. In conclusion, our results show that SNI induces presynaptic modulation at NR Nav1.8 (consisting of both peptidergic and nonpeptidergic nociceptors) synapses on L1-STTNs forming the lateral spinothalamic tract., Competing Interests: The authors declare no competing financial interests., (Copyright © 2024 Hung et al.)