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随着声音艺术等垂直领域基础模型的迅速发展，人工智能与音乐创作表演呈现愈发融合的趋势。面向音乐创演的流程与需求，提出新型音乐创演框架——平行音乐系统，该系统基于平行系统理论与人工社会、计算实验和平行执行方法，通过模拟真实世界的音乐创演环境，构建高度逼真的虚拟音乐创演场景，在虚拟和真实音乐系统间实现实时无缝交互，设计大模型时代音乐创演的人工系统、计算实验、平行执行各环节技术路线，形成由自然人、数字人、机器人组成的人机混合音乐创演团队。阐述了平行音乐的理论框架和关键技术，分析其在现代音乐领域中的创新意义和潜在价值，并探讨了平行音乐在乐曲生成和音乐治疗等场景中的应用案例。旨在利用大模型时代的人工智能技术赋能传统音乐创作路径，推动音乐创演的技术革新进程，释放音乐家的艺术创新潜力，以期为新时代音乐创演提供新视角与启发。

为明确微藻油脂与淀粉代谢过程中是否存在相互竞争与转化关系，以微藻Ankistrodesmus sp．HJ12为实验材料，对不同氮浓度培养条件下的微藻Ankistrodesmus sp．HJ12生物量、油脂含量和淀粉含量进行测定，并进行比较转录组研究，探讨其油脂和淀粉积累相关影响及分子调控机制。结果表明：氮浓度对该藻株油脂和淀粉积累具有显著影响，且油脂与淀粉积累呈显著负相关关系；培养基中添加氮源时，微藻Ankistrodesmus sp．HJ12油脂含量显著高于无氮源条件，油脂含量最高时的氮浓度为7.6 mmol/L；无氮源时，其淀粉含量最高；比较转录组研究发现，促进微藻Ankistrodesmus sp．HJ12油脂积累的主要因素可能是脂肪酸合成途径、糖酵解途径与淀粉分解代谢途径的增强，为脂肪酸的合成提供了更多的乙酰-CoA和碳源，从而促进了脂肪酸的合成；挖掘得到4个调控脂质合成代谢的关键基因ACACA、α-AMY、PDC和adh，采用实时荧光定量PCR（RT-qPCR）验证基因表达差异变化，结果与转录组分析差异一致。研究结果可为进一步了解微藻脂质合成代谢的分子机制提供一定的参考，同时为加快微藻油脂制备生物柴油实现规模化应用增添新的有利基础。 In order to clarify the relationship of lipid and starch metabolism in microalgae, with Ankistrodesmus sp. HJ12 as the experimental material, its biomass, lipid contents and starch contents were measured under different nitrogen concentrations, and comparative transcriptome were studied. The correlation between microalgae lipid and starch accumulation was explored and their molecular regulation mechanisms were investigated. The results showed that nitrogen concentration remarkedly influenced lipid and starch accumulation in Ankistrodesmus sp. HJ12, and there was a negative correlation between them. The lipid contents of algal cells cultured in media with nitrogen were significantly higher than those in nitrogen-free media. The optimal nitrogen concentration for lipid accumulation was 7.6 mmol/L. In contrast, the starch contents of algal cells were the highest in nitrogen-free media. Comparative transcriptome analysis showed that genes involved in fatty acid synthesis, glycolytic and amylolytic pathway were expressed at higher levels in Ankistrodesmus sp. HJ12 than the control, implying that the cells accumulated more acetyl-CoA and carbon source for fatty acid synthesis under nitrogen limitation, and promoting the synthesis of fatty acids. Moreover, four key genes of regulating lipids anabolism, ACACA, α-AMY, PDC and adh, were selected for RT-qPCR analysis, and the results of gene expression partterns were in consistent with those obtain by transcriptome analysis. The results of the study provided a basis to deeply understand the molecular mechanism of microalgae lipids anabolism. In addition, it added a new favorable foundation for accelerating producing biodiesel from microalgae lipids to achieve large-scale applications.

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Copyright of Tunnel Construction / Suidao Jianshe (Zhong-Yingwen Ban) is the property of Tunnel Construction 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 explore the dynamic changes of vegetation-soil system biomass and soil nutrients in alpine meadows in the Sanjiangyuan area is favorable for the adaptive management of grassland and the related work of grassland ecological restoration. [Method] Vegetation biomass (aboveground biomass and root biomass), vegetation (aboveground and root system) and soil (0-15 and 15-30 cm) contents of total nitrogen, ammonium nitrogen, nitrate nitrogen, quick-acting nitrogen, organic carbon, total phosphorus and total potassium of alpine meadows were consistently observed from 2020 to 2022 during the months of July, August and September in the moderately degraded alpine meadows as the research objects. The dynamics of vegetation biomass, vegetation nutrients and soil nutrients were compared between months using One-way ANOVA. [Result] There was a significant incremental trend (P<0.05, the same as below) in vegetation biomass between months (except for 2021), with an overall maximum in September, with maximum values of 74.58 and 72.80 g/m² for aboveground bio-mass and 39.82 and 57.32 g/m² for root biomass, respectively. Significant inter-monthly dynamics existed between vegetation (aboveground and root system) and soil (0-15 and 15-30 cm) nutrient contents, as evidenced by the maximum values in August. Vegetation biomass was significantly correlated with total nitrogen content of vegetation aboveground and root system, and positively (P<0.05) correlated with total nitrogen content of soil in the 0-15 and 15-30 cm layers. [Conclusion] Nutrients of alpine meadow vegetation (aboveground and root system) and soil (0-15 and 15-30 cm soil layers) reach the peak in August. The results of the study can provide a reference for scholars in the field of alpine meadow nutrient management to crystallize scientific issues. [ABSTRACT FROM AUTHOR]

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车辆再识别是指给定一张车辆图像，找出其他摄像头拍摄的同一车辆，可将车辆再识别问题看作图像检索的子问题。在真实交通监控系统中，车辆再识别可以起到对目标车辆进行定位、监管、刑侦的作用。随着深度神经网络的兴起和大型数据集的提出，提升车辆再识别的准确度成为近年来计算机视觉和多媒体领域的研究热点。从不同角度对车辆再识别方法进行了分类，并从特征提取、方法设计和性能表现等方面对车辆再识别技术进行了概述、比较和分析，对车辆再识别技术面临的挑战及发展趋势进行了预测。

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BACKGROUND: At present, there is no unified method to reconstruct the lateral wall after intertrochanteric fractures of femur. It is a common way to place reconstruction plates on the anterolateral side of the femoral intertrochanteric fracture, but there is little research on its biomechanics and clinical application. OBJECTIVE: To investigate the changes in biomechanical parameters of proximal femoral nail anti-rotation combined with anterolateral reconstruction plate for different types of unstable intertrochanteric fractures. METHODS: CT scanning was used to scan the lower limb bone of a male volunteer. A three-dimensional model of the femur was established through the finite element method. According to whether the fracture line involved the medial wall, the lateral wall, the internal and external walls, and whether it was stably supported on the lateral wall, the model was divided to establish the corresponding fracture model: The lateral wall was unstable, and the medial wall was stable. The lateral wall was stable, and the medial wall was unstable. Both the internal and external walls of the model were unstable. Proximal femoral nail anti-rotation and anterolateral reconstruction plates were assembled at the same time. Ordinary nails or locking nails were used for fixation. The stress and displacement of fracture fragments and internal fixation of multiple models were compared and calculated by Abaqus. RESULTS AND CONCLUSION: (1) In the three types of unstable femoral trochanter models, the anterolateral reconstruction plate could improve the stability of the proximal femur, and restore the imbalance lever of the proximal femur to a certain extent. In the unstable type of lateral wall and the unstable type of medial wall, the locking nail is superior to the ordinary nail. In the type of unstable internal and external sidewalls, the difference between the locking nail and the ordinary nail could not be detected. (2) It is concluded that the placement of anterolateral reconstruction plate can significantly improve the stability of unstable intertrochanteric fracture of the femur, reduce the possibility of nail withdrawal and failure of internal fixation, and play a role in restoring the lever of proximal femur imbalance. Locking nail is better in mechanics than the ordinary nail. [ABSTRACT FROM AUTHOR]

In order to explore the optimal technological conditions for the production of glutathione (GSH) fermented by Saccharomyces cerevisiae, based on the single factor experiment, the liquid fermentation medium was optimized through Plackett-Burman design experiment combined with the response surface methodology. The results showed that the optimal culture medium for the production of GSH fermented by Saccharomyces cerevisiae was as follows: glucose of 71 g • L_1, yeast, extract, paste of 4 g • L_1, NH4C1 of 6 g • L_1, KH2 P()4 of 2. 0 g • L_1, MgS()4 of 0. 5 g • L_1, pH of 6. 0. After three batches of parallel experiments> the mean value for the actual yield of GSH was 80. 5 mg • L_1, which was similar to the predicted value and increased by about 19. 2% higher than that, before optimization (65. 03 mg • L_1). [ABSTRACT FROM AUTHOR]

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With the rise of soilless cultivation technology, the substrate market has developed rapidly and the demand has increased day by day. The development and application of substrates have become an important research field. Peat, as the main substrate raw material, not only has limited resources, but its large-scale mining will also damage the ecological environment. This article reviews the research status of sphagnum moss and the basic performance indicators as a substrate material, and comparatively analyzes the connections and differences between peat moss, peat and other substrate materials, and uses it as a matrix based on the production principles of standard seedling substrates and cultivation substrates. An in-depth discussion is conducted to look forward to the development prospects of peat moss as a substrate, aiming to provide reference for the restoration of peat resources, protection of the ecological environment and the matrix utilization of peat moss. [ABSTRACT FROM AUTHOR]

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Objective To compare the clinical effects of CT-guided and endoscopic surgical percutaneous gastrostomy in patients with amyotrophic lateral sclerosis (ALS). Methods The clinical data of 104 patients with ALS were retrospectively analyzed, including 48 patients underwent CT-guided percutaneous gastrostomy (CT-guided group) and 56 patients underwent endoscopic percutaneous gastrostomy (endoscopic group). The disease status, length of hospital stay, postoperative length of hospital stay, postoperative complications, and survival rates of six months and one year after surgery were compared between the two groups. Results There were no significant differences in age, disease course, dysphagia time, height, body weight and preoperative nutritional status between the two groups (P＞0.05). The length of hospital stay and postoperative length of stay were shorter in the CT-guided group than those in the endoscopic group (P＜0.05). There was no significant difference in the incidence of complications between the endoscopic group (19.6%) and the CT-guided group (8.3%, P＞0.05). There was no significant difference in one-year survival rate between the endoscopic group and the CT-guided group (91.0% vs. 93.8%, Log-rank χ2 =1.606, P＞0.05). Conclusion CT-guided percutaneous gastrostomy shows its advantages in ALS, especially in shortening the length of hospital stay and postoperative length of hospital stay in ALS patients, and is worthy of widespread clinical application. [ABSTRACT FROM AUTHOR]

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.)

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Copyright of Modern Food Science & Technology is the property of Editorial Office of Modern Food 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.)

非小细胞肺癌（NSCLC）是肺癌最常见的组织学类型，占肺癌总数的 80%～85%。人表皮生长因子受体 2 (HER2）是一种细胞来源的癌基因。HER2 变异包括基因突变、扩增或蛋白过表达，是 NSCLC 的重要致癌变异。现 阶段国内针对 HER2 阳性 NSCLC 的一线治疗，主要为以铂类为基础的化疗联合抗血管生成治疗，而被批准的靶向治 疗药物有限。HER2 靶向治疗药物包括小分子酪氨酸激酶抑制剂（TKIs)、抗 HER2 单克隆抗体以及抗体-药物偶联 物（ADC)。其中，TKIs 包括阿法替尼、达克替尼、奈拉替尼、波齐替尼、吡咯替尼、Tarloxotinib、莫博赛替尼等，抗 HER2 单克隆抗体主要为曲妥珠单抗、帕妥珠单抗，ADC 主要为恩美曲妥珠单抗、德曲妥珠单抗。由于抗HER2 单克 隆抗体的疗效有限，TKIs 和 ADC 有望成为 HER2 阳性 NSCLC 重要的治疗选择。但目前大多数评价 HER2 靶向治疗 药物在HER2 阳性 NSCLC 患者中疗效的研究规模较小，尚需进一步研究证实。 [ABSTRACT FROM AUTHOR]

China's environmental governance follows the governance logic of the pressure-based system with strong incentives as the core, but the pressure-based system does not function as expected, and the logic of 'weak ranking incentives' actually appears in environmental governance. The central ecological and environmental protection inspection is an important practice in solving China's problems in the field of environmental governance. Based on the logic of 'weak ranking incentive,' this study used the panel data of 280 prefecture-level cities from 2014 to 2018 as research samples to explore the role of the implementation of the central ecological and environmental protection inspection in reconstructing the logic of local environmental governance behavior, and to analyze the influence of public participation and political promotion. The research results showed that: ① After the implementation of the central ecological and environmental protection inspection, local environmental governance presented a strong incentive logic of 'environmental qualification competition,' and the above results only occurred in areas with weak financial incentives. ② Public participation involving air pollution had a negative impact on the central ecological and environmental protection inspection. ③ The political promotion pressure based on economic assessment weakened the policy effect of the central ecological and environmental protection inspection. Combined with the results of empirical analysis, this study puts forward policy implications from the two aspects of incentives and information on how to improve the effects of the central ecological and environmental protection inspection. [ABSTRACT FROM AUTHOR]

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