Timeless Rhapsody

A 3,000-year-old musical instrument adapts to modern age In 1977,when NASA sent its Voyager 2 spacecraft on an exploration of outer space,it carried an unusual item.There were two phonograph records on board as mementos of Earth.One of the longest tracks the records induded was Liu Shuf(Flowing Streams),a classic composition on the guqin,the traditional Chinese seven-stringed musical instrument shaped like the zither,but with a much longer history.     

A New Biosecurity Shield

China speeds up legislation on biosafety in the wake of the novel coronavirus pandemic Pan Xubin,ascientist at the Chinese Academy of Inspection and Quarantine in Beijing, uses the fall armyworm as an example to demonstrate why that plant quarantine is so important. The insect originated in the Americas and has spread to Africa and Asia,devouring rice,com and vegetables.The peril has aroused people's awareness of biosafety,Pan told Beijing Review.     

A Purrfect Solution

As the Spring Festival approaches,Shenzhen,Guangdong Province in south China,is festive,but Dai Xiaojing,a programmer who has lived in the city for nearly two years,needs to work late every day to complete her tasks before the long holiday.     

山地起源与自然意趣:台湾高山族休闲文化研究

台湾高山族在历史长河中依托独特的地理环境,创造、延承了丰富多元的休闲活动,呈现出自然意趣、艺术美学、实用元素、神话色彩等文化特质。作为中华休闲文化的重要组成部分,高山族休闲文化富含当代人文价值。新时代背景下,应从中华文化整体性出发,积极发挥高山族休闲文化的自然和谐理念。在推动两岸休闲文化交流的同时,促进两岸同胞休闲质量的同步提升和美好生活的共同实现。     

中德警犬训练技术比较研究

德国是目前世界各国警察部门中警犬技术工作开展较好的国家之一，代表欧美该技术领域的发展水平。我国的警犬技术工作在一定程度上是借鉴德国的工作经验基础上发展起来的。本文运用文献资料法、现场调查法、比较分析法及逻辑推理法，对中、德两国警犬技术在教学培训受训犬的选择方式、课程设置和计划安排、管理运行方式、教学培训体系、警犬技术各使用类别等方面进行比较研究，该研究详实呈现了两国应用现状以及新技术训练方法和手段创新，通过思考相互存在异同，提出建议，旨在借鉴德国警方训练技术的先进经验，为我国警犬训练技术的改革与科学发展提供依据。     

网络政治段子的理论研究——兼谈对青年政治参与的影响

目前随着媒体技术的不断发展与进步,网络成为民众特别是青年获得与传递信息的重要媒介。网络政治段子文化的兴起与繁荣一方面反映了在实现民主化进程中的中国社会政治环境相对宽松,网络传播的受众不但是信息的"生产者",同时也是信息的"消费者",网络政治段子是公民表达政治诉求、评论政治的直通车,有益于推进公民政治参与。公民尤其是发言权较少的青年的利益诉求表达途径有限。网络政治段子作为情绪的宣泄渠道,缓解了社会矛盾冲突。其次,网络政治段子是现代社会大众实现政治互动的好途径。再次,透过网络政治段子能够监测公众对政治事件、政治人物等的看法,有利于掌握和控制舆情。网络它是政府监测公众舆情的放大镜,网络政治段子的负向功能也不容忽视。一是存在着政治传播上的隐患。二是对大众传播行为存在负面影响。片面的想法往往引发阅读者特别是思想活跃的青年群体的极端思维特别值得警惕。网络政治段子在为包括青年在内的全体公民参与政治提供了新的途径和载体的同时,也难免会产生一些消极的影响。     

中美高校聘任制之比较研究

通过对中美两国教师聘任制中教师的法律身份、聘任合同、聘后管理三个方面的比较,发现其异同之成因主要体现为:中国传统的行政管理模式和相应的法规不健全导致中国高校聘任制中教师的法律身份不清,聘任合同不明,聘后管理不善的问题.针对如上原因,解决之道主要体现在:完善法规、规范考核、维护教师合法权益、和妥善安置落聘人员.     

Reliability Study on Quantitative Detection of Extensor Digitorum Brevis Strength with Needle Electromyography and Nerve Conduction

Objective To study the objectivity and reliability of needle electromyography and nerve con- duction for detection of musculus extensor digitorum brevis strength, which may provide a basis for es- tablishing a quantitative detection of muscle strength in forensic clinical study. Methods Forty-four healthy people were enrolled as the subjects, and during toe dorsiflexion, the following items including needle electromyography indexes, motor unit potential （MUP） amplitude, MUP count, recruitment reaction type, and nerve conduction detection indexes, compound muscle action potential （CMAP） amplitude, CMAP latent period and motor nerve conduction velocity （MNCV）, were simultaneously detected under the co- operation and disguise condition. Results Under the cooperation condition, regardless of the same opera- tor or different operators, there were good test-retest reliabilities in MUP amplitude, CMAP amplitude, CMAP latent period and MNCV, while there were normal test-retest reliabilities in MUP count and re- cruitment reaction type and the repeatability of the same operator was slightly better than the repeatabili- ty between different operators. Under the disguise condition, test-retest reliabilities of MUP amplitude, CMAP amplitude, CMAP latent period and M-NCV were relatively high, while test-retest reliabilities of MUP count and recruitment reaction type were relatively low. Conclusion There are good test-retest reli- abilities in MUP amplitude, CMAP amplitude, CMAP latent period and M-NCV, which can be conducive to comparison between different operators and results at various times; MUP count and recruitment reac- tion type, which can be easily affected by subjectivity of operators and examinees, can be used to dif- ferentiate whether an examinee disguises or not. The indexes used to objectively judge muscle strength remain to be further investigated.     

肩关节损伤致肢体功能障碍程度评价方法比较

目的探讨能客观反映肩关节功能障碍对肢体功能影响的评价方法。方法通过用我国《道路交通事故受伤人员伤残评定》（简称＂《道标》＂）的权重指数法与美国《永久残损评定指南》（Guides to the Evaluation of Permanent Impairment,GEPI）（简称GEPI法）,对133例肩关节损伤后伤残评定案例进行回顾性评价;并用两种评价方法对肩关节不同运动方向及不同活动度对上肢功能影响进行全方位的比较。结果 133例肩关节功能障碍案例,权重指数法达到伤残的总比例高于GEPI法;但在功能丧失不同比例段两者有差异。差异的原因在于,在GEPI法中,肩关节不同运动方向所占的权重不同,前屈上举与外展上举对于肩关节功能相对重要,并考虑关节功能位对肢体障碍程度的影响;而权重指数法,上肢功能的关系与关节活动度呈简单的线性关系,与关节活动方向及功能位无关。结论 GEPI法比权重指数法能更能客观地反映肩关节功能障碍对肢体功能丧失的影响程度。     

公安院校毕业生言语理解与表达能力之训练分析

公务员考试作为公安院校学生竞争岗位的一个平台,已经引起学生及社会的足够重视。言语理解与表达是公务员考试必考内容之一,并且在公务员考试中起着基础性的作用。文章分析了言语理解与表达的形式与内容,介绍了一些必要方法和技巧,通过综合训练使考生最终能达到在考场上快速准确做题的目的。希望能为公安院校学生在公务员备考方面起到抛砖引玉的作用。