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目的建立行游离皮瓣重建术的颌面部恶性肿瘤手术的最大备血量目录（MSBOS），以指导临床医生合理用血以及输血科科学备血。方法收集本院颌面外科2010年1月1日~2020年12月31日围手术期患者的基本资料和输血数据，包括年龄、性别、体质量指数（BMI）、术前血红蛋白值、美国麻醉医师协会（ASA）分级、恶性肿瘤TNM分期系统中T分期、游离皮瓣是否含有骨瓣，手术方式（6类）、申请备血量以及术中用血量等，共纳入颌面外科择期手术1 953例，并通过单因素和多因素Logistic回归分析，筛选出患者围术期输血的独立危险因素，并根据危险因素建立评分标准；根据手术方式将患者分为6大组，通过评分标准进一步将每组患者分为低危、中危和高危组，计算各小组患者术中实际输血量频率的累计百分比，建立颌面外科患者的MSBOS。结果①经回归分析发现BMI、肿瘤T分期、ASA分级、术前血红蛋白（男性Hb＜130 g/L，女性＜120 g/L）、游离皮瓣含骨瓣为围术期输血的独立危险因素。②根据危险因素评分分组后发现各组患者中低危组的输血率最低，但备血输血比最高。③建立本院行游离皮瓣重建术的颌面部恶性肿瘤患者的MSBOS，分析发现建立MSBOS后患者手术前备血总量比建立前理论上可以减少54.35%。结论建立MSBOS不但有益于更科学、合理地指导手术备血，保障手术安全，而且可以优化血液库存管理，尤其对于低危组的患者应当采取保守的备血方案，有效减少过度备血的状况，节约血液资源。

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Copyright of Feed Industry is the property of Liaoning Provincial Institute of Agricultural Mechanization 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.)

Objectives: High definition(HD)map plays an important role in autonomous driving. Most existing research focuses on high-resolution mapping in terms of road geometries as well as the updating of static road information in HD map. However, there is still a lack of research on dynamic information involved in road traffic networks. We focus on enriching the content of HD map in terms of the dynamic information including the dynamic information, it's meta data structure and inforamation interaction. Methods: We propose a comprehensive set of content that HD map need to cover for the dynamic information based on existing work on HD map data organization and data standards. Based on this, combined with cloud ends of HD map systems and vehicle ends of autonomous driving vehicles as two information interaction terminals, a method for information interaction between cloud ends and vehicle ends under different combination modes (vehicle-cloud, vehicle-vehicle, and cloud-vehicle modes) used in HD map information system is proposed to facilitate a timely capture of dynamic information in road environments. Results: (1) The vehicle-cloud information interaction mode is suitable for self-driving cars. The vehicle collects vehicle dynamic information in real time and uploads it to the cloud of the HD map information system after preprocessing, so as to realize the sharing of perception information of different vehicles in the road environment on the cloud. (2)The vehicle-to-vehicle information interaction mode is used between different self-driving cars. This mode is mainly aimed at obtaining partially vehicle dynamic information directly through vehicleto-vehicle interaction during driving. (3)The cloud-vehicle information interaction mode is suitable for vehicles connected to the HD map information system platform. The cloud stores dynamic information, and the vehicle requests the demanding information according to its own needs. Therefore, The HD map information system continuously performs information interaction in three interaction modes, and updates information simultaneously, maintaining the freshness of dynamic information and enhancing the robustness of HD map. Conclusions: However, due to the complexity and variability of the road environment, the content of dynamic information interaction we propose can only cover what happens during vehicle driving to a certain extent. For the road information that appears with a small probability, we do not conduct in-depth research, which is also the direction we need to discuss and study in the future. [ABSTRACT FROM AUTHOR]

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The coexisting regime of spin-density wave (SDW) and superconductivity in iron pnictides represents a novel ground state. We have performed high-resolution angle-resolved photoemission measurements on NaFe_{1-x}Co_{x}As (x=0.0175) in this regime and revealed its distinctive electronic structure, which provides some microscopic understandings of its behavior. The SDW signature and the superconducting gap are observed on the same bands, illustrating the intrinsic nature of the coexistence. However, because the SDW and superconductivity are manifested in different parts of the band structure, their competition is nonexclusive. Particularly, we find that the gap distribution is anisotropic and nodeless, in contrast to the isotropic superconducting gap observed in a SDW-free NaFe_{1-x}Co_{x}As (x=0.045), which puts strong constraints on theory.

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纤维化是以细胞外基质异常增多或过度沉积为特征的病理过程，可导致器官、组织结构受损甚至器官衰 竭.外泌体通过分泌蛋白质、脂质和核酸等生物信息进行细胞间通信，其携带的微小RNA（miRNA）在纤维化疾病中 发挥重要作用.外泌体源性miRNA能够通过多种信号通路介导成纤维细胞增殖分化、间充质细胞转化及细胞凋亡， 进而在纤维化疾病中发挥调控作用，有望成为纤维化疾病诊断的重要标志物和治疗的重要靶点. [ABSTRACT FROM AUTHOR]

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