急诊患者入院前急救探析

目的:通过对北京安贞医院8年余院前急救交接单回顾性分析,研究院前急救患者的状况,为加强院前急救提供数据支持。方法:自2008年至2016年,从院前急救患者交接单中抽样进行统计分析,研究院前急救患者人群特征、发病地点分布、病种、院前医疗救治和急救机构。结果:8年余院前急救的患者数量增加近7倍以上,公众对急救公共卫生需求有明显增加;在性别特征方面,男性数量高于女性,约1.5∶1;在年龄特征方面,院前急救患者的高发人群主要是中老年人群体,尤其是低龄老年和中龄老年群体;在地点特征方面,院前急救患者的发病地点分布很不均衡,家庭是发病最主要的场所,约占2/3;院前急救患者疾病占比依次为心血管病、脑血管病、消化系统、呼吸疾病、外伤、其他、妇产科、昏迷和死亡等;在120与999急救选择上,民众选择120多于999。结论:加强急诊建设,开放急救绿色通道;对心血管病史老年人群应加强二级预防;家庭急救是重要的。

Quarantine Identification of Dendroctonus punctatus

Dendroctonus spp. is one of the most portable pests in imported and ex- ported timber and wooden packages, and it is an important object of the port quarantine. Making rapid and accurate identification of Dendroctonus spp. is an im- portant method to reduce the invasion risk of Dendroctonus spp. for China. In this paper, Dendroctonus punctatus, which belongs to the Dendroctonus spp., is intro- duced in detail from the aspects of taxonomic status, biological characteristics, mor- phological characteristics and the invasion risk, providing reference for the identifica- tion of Dendroctonus punctatus in inspection and quarantine.

Implications for Cultural Landscape in a Chinese Context: Geo-analysis of Spatial Distribution of Historic Sites

The protection of historic sites, especially their relationship with urban development, has become a worldwide issue, both in developed and developing countries. In the context of rapid urbanization in China, the realistic compatibility between urban construction and the protection of historic sites is always a key research topic. In this study, first, to comprehend their spatial distribution patterns, 828 historic sites throughout the country are selected based on certain criteria. Then, we conduct quantitative research using GIS software, adopting indicators that include Nearest Neighbor Index, Gini Coefficient, and Geographic Concentration Index to analyze the spatial characteristics of historic sites on the three levels of city, province and nation. The results indicate that the spatial distribution of the different types of historic sites is an agglomeration on the nationwide scale, most of which is located in the regions of the Pearl(Zhujiang) River Delta, Yangtze(Changjiang) River Delta and Beijing-Tianjin Region. Because the majority of historic sites are located within approximately 10 km of the downtown area, a certain pattern has emerged, showing that the larger cities own more historic areas, which are in a more incomplete state of preservation, indicating the fragmentation of heritage spaces. The formation mechanism of the historic sites' distribution pattern is based on the conditions of the cities/towns as well as the bid-rent theory.

The Spatial Characteristics of a Line and Their Application to Line Simplification

This paper discusses the spatial knowledge related to a line ,and the characteristic points of lines is detected.According to the requirements of line generalization,new algorithms for identifying characteristic line points are presented.These characteristic points are used to improve the algorithms of line generalization.An algorithm for identifying bends is shown.In this paper,improved algorithms based on those by Douglas_Peucker,Visvalingam and Whyatt are shown.In this test,the progressive process of line generalization is emphasized.

Fracture Characters and Seismogenic Fault of the Yajiang Earthquake Sequence with M_S6.0 in Sichuan in 2001

The Yajiang earthquake sequence in 2001, with the major events of M S 5.1 on Feb. 14 and of M S 6.0 on Feb.23, are significant events in the Sichuan region during the last 13 years. Eighty-eight earthquakes in the sequence with at least 5 distinct onset parameters for each recorded by the Sichuan Seismic Network in the period of Jan. 1 through June 30, 2001 were chosen for this study. The events are relocated and the focal mechanism is derived from P-wave onsets for 13 events with relatively larger magnitudes. The focal depth of all earthquakes fall between a range of 2km to 16km, with dominant distribution between 9km to 11km. The foreshocks, the M S5.1 earthquake and the M S6.0 earthquake and their aftershocks are all located close to the Zihe fault and the dominant epicentral distribution is in NW direction, identical to that of the fault. The fracture surface of the focal mechanism is determined in accordance to the mass transfer orientation in the recent earth deformation field in the Yajiang region. The P axes of the principal compressive stress in focal mechanism solutions of the 13 events show bigger vertical components, and the horizontal projection trending SE. The earthquakes are of left-lateral, strike-slip normal, and normal strike-slip types. The rupture surface of most earthquakes strike NW-SE, dipping SW. Based on the above information, we conclude that the Zihe fault that crosses the earthquake area, striking NW and dipping SW, is the seismogenic fault for the Yajiang earthquake sequence.

Evaluation on Ideal Test Sites and Regional Characteristics of Cotton Fiber Quality in Jiangsu Province

[Objective] The aim of this study was to explore the dominant fiber quality traits of test sites in cotton regional trials, by analyzing the regional characteristics of cotton fiber quality in Jiangsu province, in order to provide the theory background for cotton fiber quality improvement. [Method] The dominant fiber quality traits of test locations were analyzed with eight main fiber quality indexes of hybrid cotton regional trials during 2009-2013 in Jiangsu province by use of the "ideal test site" view of GGE biplot. [Result] The test locations with the best integrative fiber quality were proved to be Yanliang, and followed by Dongxin and Guanyun; The better test locations in terms of the major fiber quality indexes, including fiber strength, fiber Length and micronaire value, were Guanyun, Xinyang and Yanliang; To sum up, the best test location with balanced fiber quality was Yanliang. The test locations with specialties in fiber quality index were listed as bellow: Dafeng, Xinghua and Dongtai performance better in fiber length; Qidong, Liuhe and Yanhai locations were of better fiber length uniformity; Sheyang and Dongxin were better in micronaire value;while Sheyang along was better in fiber elongation and reflectance. Moreover, the correlation between fiber yellowness and other traits was significant(P<0.01). [Conclusion] The regional characteristic of cotton fiber quality index in Jiangsu province was obvious and fiber yellowness was worthy an indicator trait to assist the comprehensive improvement of cotton fiber quality.

丽水地区急诊儿童意外伤害的原因分析

目的分析丽水地区急诊儿童发生意外伤害的原因,并采取相应预防措施,以期为临床防治工作提供参考依据。方法回顾性分析2018年3月-2019年10月在丽水市中心医院急诊科就诊的279例发生意外伤害患儿的临床资料,分析不同年龄阶段意外伤害发生情况,不同年龄阶段性别特征、地点特征、受伤类型及受伤部位等情况。结果共对279例发生意外伤害患儿进行研究,发生意外伤害主要为学龄期儿童,占54.48%,其次为学龄前期,占33.33%。不同年龄阶段儿童发生意外伤害的性别主要为男童,占67.74%;不同年龄阶段儿童意外伤害主要发生在户外,占69.53%;不同年龄阶段发生意外伤害的类型主要为跌落伤,占32.62%,其次为撞击伤,占25.09%;不同年龄阶段发生意外伤害的部位主要分布在四肢和头面部,分别占45.16%和25.09%。结论不同年龄阶段儿童发生意外伤害的性别特征、地点特征及受伤类型等均不相同,临床应进一步加强避免儿童发生意外伤害的宣传力度,提高家长的防范意识,同时,应在政府部门的领导下,倡导全社会共同参与防治儿童发生意外伤害,进而提升儿童健康水平。