Psychological Distance between Police and the Public and the Construction of Police-Public Relationship—The Study Based on the Perceived Service Quality Model

如今，公安部不断强调“切实提高群众工作能力，推进和谐警民关系建设”。警察如何摆脱暴力机关的标签，转变为社会服务角色，如何依靠群众、服务群众，推进和谐警民关系，是一个艰巨而又长久的课题。本文创新性地从心理学的心理距离角度，并运用“顾客感知服务质量模型”的方法对警民关系进行深入系统的研究。文章通过理论研究与实证研究紧密结合，梳理理论研究，开展问卷调查、深度访谈、随机测试论证，解读警民心理距离的产生，分析当前警民关系的特征，尝试从心理学的角度探究影响警民关系的最深层次的原因，并提出和谐警民关系的构建思路。研究结果表明，警民心理距离是由民众对警察服务的心理期待和对警察服务质量的实际感知之间的差距而产生...Nowadays, The Ministry of Public Security has repeatedly stressed that "to improve the service ability with people, promote the construction of a harmonious relationship between the police and the masses. How to get rid of the violence department character change to the social service role, how to rely on the masses, serve the masses, promote a harmonious relationship with masses, is an arduous an...学位：公共管理硕士院系专业：公共事务学院_公共管理硕士学号：X201213600

Physiological Response of Aegiceras corniculatum Leaves to Hg~0 Stress

桐花树是我国主要的广布种红树植物,具有泌盐性。通过胁迫实验,研究桐花树幼苗叶片生理生态指标对气态单质汞(Hg0)胁迫的响应,以期了解红树植物吸收和富集气态汞的机制。结果表明:气态汞胁迫造成桐花树叶片可溶性糖含量、过氧化物酶(POD)活性下降;而丙二醛(MDA)、脯氨酸、超氧化物歧化酶(SOD)等指标上升;叶绿素含量、过氧化氢酶(CAT)活性出现先升高后降低的趋势,还原型谷胱甘肽(GSH)含量则先降低后升高。总之,虽然Hg0胁迫可增加桐花树幼苗叶的膜质过氧化程度,影响其生理代谢活动,但其叶片可通过调节抗氧化酶活性及还原型谷胱甘肽含量来提高自身抗氧化能力,进而提高对Hg0的抗性。As one of the main widespread mangrove plants in China, Aegiceras corniculatum can tolerate salt by excreting salt. Mangroves are facing more and more serious heavy metal pollution, especially the mercury contamination. To investigate the mechanism of mercury absorption and tolerance of mangrove, stress experiments were conducted with Aegiceras corniculatum seedlings under Hg0 stress. In this experiment, physiological characteristics such as the contents of chlorophyll, soluble sugars, malondialdehyde( MDA), proline( Pro), and reduced glutathione(GSH), activities of superoxide dismutase(SOD), peroxidase(POD) and catalase(CAT) of Aegiceras corniculatum seedlings' leaves were measured. Results showed as follows: the content of soluble sugars and the activity of POD gradually decreased under Hg0stress; while MDA content,Pro content and SOD activity significantly increased; the chlorophyll content and CAT activity increased firstly and then decreased, and on the contrary, the content of GSH decreased initially and then increased. The findings from above study demonstrate that although Hg0 tress can lead to damage of metabolism by causing membrane lipid peroxidation in seedlings 'leaves, but the seedlings could change activities of the antioxidative enzymes and the content of GSH to enhance the antioxidant abilities, and then strengthenorganism resistance to mercury.国家自然科学基金(No.41176090

Study on Bias Factors Filtering for NMR-based Metabolomics

代谢组学借助高通量、高灵敏度与高精确度的现代分析技术考察生物体受内外界刺激或扰动后(如特定基因的变异或环境的变化)，其内源性代谢产物的组成及其随时间的变化规律。凭借核磁共振(NMR)技术的众多优势，基于NMR的代谢组学近年来得到了迅速发展，目前已被广泛应用于病理学、药理学、生物科学等许多领域。处于复杂环境中的生物体不可避免地受到各种内外界刺激因素的作用，当我们试图探究某种刺激因素(如疾病、饮食、药物干预等)对生物体代谢过程的作用时，其它刺激因素便成为了干扰因素。若这些干扰因素对生物体的作用过大，则会影响后续的分析结果的准确性，造成异常代谢通路和相关生物标志物的辨识错误。因此，如何减少干扰因素影...As a newly-developing technique, metabolomics is commonly defined as the study of metabolic profiles of organisms and the changes corresponding metabolism, either arising from natural fluctuations or induced by external perturbation. By employing modern analytical technique with high throughput, high sensitivity and high accuracy, it analyzes cells, tissues and endogenous metabolites in biological...学位：理学硕士院系专业：物理与机电工程学院物理学系_无线电物理学号：1982009115255

On “Crazy Scholar” Gukuang and His Articles

顾况一个颇有神秘色彩、传奇性质、鲜明特色的人物，唐代最具个性的诗人之一，也是大历、贞元时期具有独特风格的重要诗人。顾况一生历经六朝，个性豪放不羁，思想深受儒道佛综合影响，以才气作诗，气势开张，语言独特，在大历、贞元诗坛上显得与众不同。实际上他以其卓越的创新意识，大胆的创作勇气，诙谐滑稽的风格，已自开门户，独领风骚，屹立于中唐诗坛。但一些文学史中，很少安排顾况在中唐诗坛占一席地位，这并不公平，而二十世纪以来，学术界对其诗文整体风貌与艺术成就的关注有限。本文将分这样几个部分： 第一章，分析学术界研究现状和成果，探索此次选题的意义及其价值。 第二章，从顾况的生平时代和个性化的多彩人生入手，勾勒出...As a mysterious, legendary and brilliant poet, Gukuang is one of the most characteristic poets in Tang Dynasty and one of the important and characteristic poets in Dali and Zhenyuan times. He lived through Liu Chao. His personality was vigorous and unrestrained; his thought was deeply influenced by the Confucianism, Taoism, and Buddhism. His poems which is written by unique words, are all of talen...学位：文学硕士院系专业：人文学院中文系_中国古代文学学号：2005130003

电子银行监管立法刍议

电子银行的出现 ,改变了传统金融机构经营方式和业务运作模式 ,在提高了银行效率的同时 ,也加大了银行的风险。构筑电子银行新的监管体系并建立相应的监管规范势在必行。本文在借鉴和比较国外的电子银行监管模式和相应法律文件的基础上 ,来探讨我国电子银行监管体系的结构、主要内容 ,并对若干有争议的问题提出笔者的看法 ,以期为立法者进行法律规划时起参酌之见

汪遵“幼为小吏”之说考实

关于汪遵"幼为小吏"的记载,近年来有学者提出质疑,认为此记载与唐宪宗元和二年(807)所颁布的敕令相矛盾,并由此认为此记载不可信,通过对汪遵"幼为小吏"之说进行分析和探讨,认为不能否定《唐摭言》关于汪遵"幼为小吏"的记载

明胶膜醇/水分离特性

明胶(Gelatin)曾用于与其它高聚物共混制备分离膜材料,但迄今未见单独成膜用于膜分离的报道.本文首次报道高纯牛骨胶经Cr_2(SO_4)_3交联后制膜的方法,并成功地用于醇/水渗透蒸发分离.采用渗透蒸发分离醇/水混合物,既节能又简便

几种膜结合水的差示扫描量热研究

对芳香聚酰胺、聚砜酰胺、聚苯并咪唑酮、聚砜和醋酸纤维等五种膜材料进行差热扫描量热研究，发现膜在室温下结合水和脱除水是一平衡，升温后水游离出来，回到室温时又结合上去，若在高温时移至液氮中骤冷，膜表面结合部分多分子水，此时膜和水的热性能和结合单分子水为主的膜明显不同

明胶膜醇/水渗透汽化性能的研究

用牛骨胶制备明胶膜,用于乙醇/水混合物的渗透汽化分离研究,结果表明,该膜在常温下分离85％乙醇时运行3h便可到达稳定操作状态;料液中醇含量增大、膜的分离系数提高但通量下降;而温度升高或汽相侧真空度提高都能导致膜通量与分离系数的同时提高

壳聚糖富氧膜的研究(Ⅱ)

壳聚糖-聚砜酰胺复合膜在干、湿情况下,其富氧性能存在明显的差别,表明壳聚糖是较好的富氧材料。从壳聚糖的结构可看出,它能通过氨基、羟基与许多重金属离子形成螯合物,这种螯合物与低分子氧载体的结构相似.本文在壳聚糖-聚砜酰胺复合膜上固定金属钴盐,并在干、湿两种状态下测定了其富氧性能的差别