Design and Implementation of Company Employee Performance Management System

随着企业竞争的逐步激烈，对公司员工进行绩效管理能够在吸引更多优秀人才的同时提高企业内部员工的工作积极性与工作的效率，对提供公司的竞争力具有重要的作用。传统的绩效管理缺乏有效的技术支撑，且管理过程较为复杂。信息技术的发展对公司的绩效管理提供了新的思路。在本文中，结合公司绩效管理的实际情况，提出了一套公司员工绩效管理系统的设计方案。 论文首先对绩效管理在公司日常管理中的工作现状和信息化建设水平进行了阐述和分析，以及对公司中现有的员工绩效管理模块式的优缺点进行总结，最后针对绩效管理的具体特点和公司的实际应用需求，对系统进行了需求分析，并确定公司员工绩效管理系统的需求文档。 同时，论文对当前系统设...With the fierce competition among enterprises, the company staff performance management can improve internal staff work to attract more talents and efficiency while actively working on providing the company's competitiveness has an important role. The traditional lack of effective performance management technology support, and management process more complicated. Development of information technol...学位：工程硕士院系专业：软件学院_工程硕士(软件工程)学号：X201323095

会计准则与会计职业判断之一——基于C公司“扭盈为亏”的案例分析

关于会计在经济中所发挥的作用,一直存在着“管理工具论“与“艺术论“之争。“管理工具论“的观点自是不难理解,其工具特性由会计在准确反映经济实质方面所起到的重要作用可见一斑。同时,会计又因其在实际操作中所存在的主观性备受质疑,而这恰恰又是会计艺术性的精髓所在。如何在会计准则的规范下、在有限的主观决策空间内做出最有利于会计主体的会计职业判断,是一门艺术。这个“度“的把握,是对所有会计工作者的共同挑战,许多企业也在这方面做出了实践与探索。从本期起,本刊将分四期刊发“会计准则与会计职业判断“这一专题,希望您能通过文中所选取的案例,对会计这门艺术有更深的感悟与体会

基于形态和分子证据对斑果藤族和节蒴木科的系统学研究

斑果藤族(Stixeae)和节蒴木属(Borthwickia)传统上被置于山柑科(Capparaceae),最近的分子和形态学证据均支持它们从山柑科中分离出来,节蒴木属已被提升为科,但斑果藤族的系统位置和分类地位尚不清楚。为解决斑果藤族的系统位置和分类地位,并进一步为节蒴木科的成立提供证据,对核心十字花目GRFT(Gyrostemonaceae-ResedaceaeForchhammeria-Tirania)分支,使用叶表皮等20个形态性状和5个DNA片段(mat K、rbc L、ndh F、trn L-F和ITS),用最大简约法(MP)和贝叶斯分析(BI)对形态及分子矩阵进行系统发育分析。结果高度支持斑果藤族的Neothorelia为GRFT分支成员;Neothorelia、Tirania和斑果藤属(Stixis)聚为一支,但Forchhammeria的位置尚不明确;形态及分子系统发育分析结果均支持节蒴木科成立

影响大学生信息素养培养的因素及改进策略

随着我国进入了网络信息时代，信息素质是人们生存和发展的保障和基础，因此应该注重提高学生们的信息素养，面对当下大学生信息素培养存在的问题，必须要针对影响到大学生信息素养培养的制约因素，采取有效的应对措施，才能够全面提高大学生的信息素养。本文主要围绕影响大学生信息素养培养的因素及改进措施展开分析和论述，首先介绍大学生信息素养的概念和特征，然后分析影响到大学生信息素养培养的因素，最后提出全面提高大学生信息素养的有效途径。</jats:p

Annual variation and spatial distribution of nutrients in the Laizhou Bay

To better understand the distribution and annual variation of nutrients in the Laizhou Bay, a successive survey about dissolved inorganic nitrogen (DIN), phosphate(PO_4-P) and silicate(SiO_3-Si) from 2004 to 2014 was conducted. In the present study, high concentrations of DIN, PO_4-P and SiO_3-Si were located at the southwest coast of the Laizhou Bay, especially at Xiaoqing River estuary and its vicinity. The spatial distributions of nutrients in the Laizhou Bay were mainly influenced by the terrestrial inputs such as Xiaoqing River and itsvicinity. Although, DIN concentrations in the Laizhou Bay from 2004 to 2014 were higher with medians ranging from 8.14 μmol/L to 53.98 μmol/Lthan those in the 80 s and 90 s of the 20th century, anannual variation trend of slight decreased from 2004 to 2014 was shown in the Laizhou Bay. The nitrate was the main form of DIN contributing 83 %, while nitrite and ammonium salt contributing 7 % and 10 %, respectively. Low concentrations of PO_4-P in the Laizhou Bay were observed with medians ranging from 0.03 μmol/L to 0.49 μmol/L with an obvious annual variation trend of decrease. The medians of SiO_3-Si in the Laizhou Bay ranged from 8.5 μmol/L to 52.9 μmol/L with a decrease annual variation trend in August. The temporal distributions of nutrients in the Laizhou Bay were mainly influenced by the nutrients fluxes of Xiaoqinghe River. The medians variation of DIN/PO_4、SiO_3 /DIN and SiO_3 /PO_4 were 78.9~1112.4, 0.2~2.2 and 40.2~442.5, respectively. The annual variation trends of increase for DIN/PO_4 and SiO_3 /PO_4 while no obvious annual variation trend for SiO_3 /DIN were observed from 2004 to 2014. The analysis on nutrient structure indicated that PO_4-P was absolute limitation with the trend of increase while SiO_3-Si was the limitation in May. The nutrient levels of the Laizhou Bay shifted from oligotrophy in the 80 s and 90 s of the 20th century to potential eutrophication of phosphorus limitation during 2004-2014

用培养基介导法研究辐射旁效应及其机理

目的通过受照射的细胞培养液培养靶细胞,并用二甲基亚砜(DMSO)对靶细胞预处理,检测其对自然杀伤(NK)细胞活性的影响,研究旁效应是否存在及其产生机理。方法以健康雄性ICR小鼠脾NK细胞活性检测经过不同剂量照射的细胞培养液对小鼠淋巴瘤YacⅠ细胞的损伤程度,同时观察DMSO对该细胞的保护作用,即对旁效应的抑制作用。结果应用不同剂量60Coγ射线照射的细胞培养液来培养YacⅠ细胞,引发该细胞不同程度的损伤,表现在YacⅠ细胞对小鼠脾NK细胞的敏感性增强(P<0.01);DMSO预处理细胞对旁效应有一定的抑制作用,特别在0.25和0.5Gy组,对细胞的保护作用明显。结论60Coγ射线照射能诱发YacⅠ细胞的培养液介导的旁效应。活性氧(ROS)是诱发辐射旁效应的因素之一,清除ROS可部分抑制辐射旁效应