978 research outputs found
Evaluation and Research of Corporate Environmental Responsibility on Marine Industry in China
近年来,企业生产经营过程中带来的环境污染问题十分突出,引起业界对经济利益之外的企业环境责任问题高度关注。在建立“21世纪海上丝绸之路”的背景下,我国海洋产业企业必将率先走出国门,然而企业社会责任尤其是企业环境责任的缺失一直是国际贸易在一定程度上限制我国企业的重要因素。企业作为现代经济和发展中至关重要的力量,它既是产生环境问题的主要原因,也应该是预防和治理环境问题的主要角色。 当前企业环境责任发展的主要问题是:(1)企业环境责任内容杂乱,缺乏系统性;(2)企业环境责任评价体系依托于企业社会责任评价体系,缺乏完整性和独立性;(3)国内研究更是将企业环境责任与企业环境绩效指标、企业环境信息披露指标...In recent years, the environmental issues caused by the production and operation of enterprise are very serious, which cause great concern on the issue of corporate environmental responsibility. Under the background of the establishment of 21st century maritime Silk Road, China's marine industry enterprises should be the leader in the aspect of developing aboard. However, lacking of corporate...学位:理学硕士院系专业:海洋与海岸带发展研究院_海洋事务学号:3042014115165
Separation and Determination of As/Se Species by Chromatography and Inductively Coupled Plasma Mass Spectrometry
砷和硒是两种与人类生活息息相关的元素,虽然两种元素在生命体系中所起的作用不同,但它们的毒性、生理活性、代谢机理等均与其存在形态密切相关,因此砷、硒两种元素一直是元素形态分析的研究热点之一。 元素形态分析是识别或测定待测样品中一种或多种元素的一个或多个化学形态的分析过程,是目前环境化学、生态毒理学、分析化学等学科的研究热点。经过三十几年的发展,将各类色谱分离技术与元素特效检测器联用,是目前解决元素形态分析最常用的分析方法。其中高效液相色谱(HPLC)与电感耦合等离子体质谱(ICP-MS)联用技术,因选择性好、灵敏度高、联用接口简单的特点,成为元素形态分析研究领域内应用最广、发展最快的分析技术。...Both Arsenic and Selenium are very closely related to our daily life. Although the two elements have different functions on human health, the toxicity, Biological activity and metabolic mechanism of them are strongly depend on their chemical species. So they are one of the hot spots in elements speciation analysis. Elements speciation analysis is defined as the analytical activities of identifyin...学位:理学硕士院系专业:海洋与地球学院_海洋化学学号:2232012115131
中国のサイエンスパークとビジネスインキュベーターの発展に関する研究
公共政策プログラム / Public Policy Program政策研究大学院大学 / National Graduate Institute for Policy Studies論文審査委員: 園部 哲史(主査), 大塚 啓二郎, 山野 峰, 戸堂 康之(東京大学), 大山 達
pH-Responsive Dendritic Polyrotaxane drug-polymer conjugates forming nanoparticles as efficient drug delivery system for cancer therapy
本文研究了具有超支化结构的聚轮烷-阿霉素药物载体的制备及其抗肿瘤作用。通过一系列的化学反应及环糊精与PEG的主客体自组装过程方法成功制备了pH敏感的阿霉素药物偶联载体,实验结果表明该制备方法具有分子量可控,分子量分布窄,载药量固定等优点,且合成的药物载体生物相容性较好。通过动态光散射(DLS)及透射电镜(TEM)发现,该药物载体可以在水溶液中进一步自组装形成粒径在100 nm左右的均一纳米粒子。体外释放研究表明,由于药物阿霉素是通过酸敏感的腙键与聚轮烷相连,药物阿霉素在pH=6及pH=5的释放情况下明显快于人体血液生理pH=7.4的释放情况,达到了刺激响应性释放的目的。体外研究表明,该药物偶联..
Kartoitus tankotanssijoiden urheiluvammoista : kvantitatiivinen kyselytutkimus
Tässä opinnäytetyössä tutkittiin tankotanssijoiden urheiluvammoja kvantitatiivisin menetelmin. Tutkimustulosten perusteella pystytään jakamaan uutta tietoa lajin urheiluvammoista tankotanssin parissa toimiville henkilöille, kuten valmentajille, harrastajille, kilpailijoille ja lajista kiinnostuneille.
Tutkimuksessa selvitettiin, kuinka monelle tankotanssijalle on tullut urheiluvammoja. Vammoista selvitettiin sen kohdealue, laatu ja koetun haitan kesto. Lisäksi selvitettiin iän, sukupuolen, kokemusvuosien ja viikoittaisen harjoittelutuntimäärän yhteydet vammautumisiin. Kysely jaettiin keväällä 2018 ympäri Suomea tankotanssikouluihin ja se oli menetelmältään kvantitatiivinen. Vastauksia tuli yhteensä 262 kappaletta. Kerätty aineisto syötettiin ja analysoitiin MS Excel- ja IBM SPSS Statistics -ohjelmistoilla.
Tuloksista kävi ilmi, että yleisimmät urheiluvammat tankotanssissa kohdistuvat yläraajaan olkapään alueelle. Vammat koettiin lihasperäisiksi rasitusvammoiksi ja niiden aiheuttama haitta oli useimmiten 1 – 4 viikkoa. Viikkoharjoittelutuntimäärällä oli selkeästi yhteyttä vammojen esiintyvyyteen (p=0,036), mutta sen riippuvuus oli heikko (C=0,032). Kokemusvuosilla oli selkeästi yhteyttä vammojen esiintyvyyteen (p=0,0065). Vastauksista kävi ilmi, ettei ikä ollut tilastollisesti merkitsevä tekijä vammojen esiintyvyydessä (p=0,095).The aim of this bachelor’s thesis was to carry out a research of sports injuries among pole dancers with quantitative methods. The material was collected with a structured electric questionnaire. The purpose was to innovate new knowledge about sports injuries among pole dancers. The information can be used by coaches, amateurs, professionals, and others who are interested in the sport.
This study’s objective was to clarify how many pole dancers has had a sports injury. The other examined matters were the target areas of sports injuries, their quality, and how long was the duration of one’s experienced drawback after injury. Furthermore, the researchers were interested in the possible connection of age, gender, years of experience, and weekly practice hours to sports injuries incidence.
The questionnaire was shared to Finnish pole dancing schools in spring 2018 and a total of 262 replies were received. The survey was quantitative, and the gathered material was analyzed with MS Excel, and IBM SPSS Statistics software.
According to the results, it appears that the most general sports injuries in pole dancing are directed to the upper limb, more precisely to the shoulder area. The injuries were experienced as mostly repetitive strain injuries. The usual experienced drawback period was 1 to 4 weeks. There was a clear connection with weekly practice hours and the incidence of injuries (p=0,036), but they only had a weak dependence (C=0,032). The years of experience had a clear connection to the incidence of injuries (p=0,0065). Age was not a statistical significant factor in incidence of sports injuries (p=0,095)
The function of amphioxus Lefty gene in embryonic development
在脊椎动物胚胎发育过程中,位于组织者处的信号中心对于胚胎体轴和胚层的形成具有重要作用。组织者的形成需要诸多因子协同作用,如局域具有活性的Wnt/β-catenin信号通路、Nodal信号通路以及Nodal信号通路的抑制因子Lefty等。文昌鱼是无脊椎动物到脊椎动物的过渡类群,已有研究表明在原肠胚期,文昌鱼的背唇结构与脊椎动物的组织者同源,但其发育机制和功能尚不清楚。文昌鱼是体外受精,胚胎发育过程简单,且具有与脊椎动物相似的体轴结构,但其结构较脊椎动物简单,因此便于对基因在胚胎发育中的功能进行研究。文昌鱼Lefty基因是最早表达在将来发育为组织者区域的基因,因此研究文昌鱼Lefty基因在胚胎发育...The organizer is an essential signaling center required for axial formation and germ layer patterning during vertebrate embryo development. Accurate formation of the organizer requires regionalized activation of Wnt/β-catenin and Nodal signaling as well as Nodal signaling antagonist Lefty. In the basal chordate amphioxus, the dorsal lip of gastrula has been proposed to be an analogous structure to...学位:理学硕士院系专业:生命科学学院_生物化学与分子生物学学号:2162014115257
Design and Implementation of Personal Credit Business Management System for a Commercial Bank
随着经济全球化进程的推进,中国加入WTO组织,中国银行业得到了快速的发展。作为银行核心业务的个人信贷业务不仅是商业银行重要的利润来源,同时,也决定着社会主义市场经济的发展。然而,个人信贷业务的复杂性以及银行管理的特殊性,无疑使得个人信贷管理水平的提升成为了银行发展的瓶颈。因此,在这样的背景下,如何根据银行实际贷款业务流程为客户提供优质服务,为管理部门提供业务分析方面的支持,成为了一项长期研究的课题。 本文探讨应用计算机技术来解决商业银行个人信贷业务问题的一些可行有效的方法。根据个人信贷业务的具体需求,采用规范的软件项目管理方法论,从需求分析、总体设计、概要设计、系统实现等方面,设计出一套个人...With the advance of economic globalization, China accession to the WTO, China's banking industry has been rapid development. As the bank's core business of consumer credit business of commercial banks is not only an important source of profit, but also determines the socialist market economy. However, the complexity and particularity of bank management's personal credit business, no doubt making t...学位:工程硕士院系专业:软件学院_工程硕士(软件工程)学号:X201223110
浅谈我国纳税亏损的会计处理
浅谈我国纳税亏损的会计处理○张浩洋《中华人民共和国企业所得税暂行条例》第十一条规定:“纳税人发生年度亏损的,可以用下一纳税年度的所得弥补;下一纳税年度的所得不足弥补的,可以逐年延续弥补,但是延续弥补期最长不得超过五年。”我国具体会计准则——所得税会计..
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