教育财务管理信息系统设计

为提高学校的信息化管理水平,本文结合学校的业务需求和实际工作情况,研究并设计了适合学校的"教育财务管理信息系统",以期提高学校自身的财务管理效率,为学校的各项行政管理活动以及教学管理提供相关保障,从而促进学校更快更好地发展。本文基于软件工程面向对象的思想,采用统一建模语言UML进行财务管理系统的分析、设计和实现。     

酸浆宿萼总皂苷对小鼠免疫活性的影响

本文以干燥的酸浆宿萼为实验材料,经乙醇回流提取,并通过溶剂萃取和大孔树脂进一步分离得到酸浆宿萼皂苷(TSP)。以不同剂量TPS连续20天对正常小鼠进行灌胃,探讨了TPS对小鼠免疫活性的作用。结果表明:高剂量(40mg/m L)的TPS溶液能极显著的增加小鼠的免疫器官指数(P0.05)和巨噬细胞吞噬指数;免疫球蛋白(Ig G)含量,P0.01;改善血常规指数。而低剂量(5mg/m L)的TPS溶液对小鼠上述指标有显著的正面影响,P0.05。总体上,在实验浓度范围内,TPS具有增强小鼠免疫活性的作用且呈剂量依赖性。     

Open access to data: An ideal professed but not practised

Data-sharing is an essential tool for replication, validation and extension of empirical results. Using a hand-collected data set describing the data-sharing behaviour of 488 randomly selected empirical researchers, we provide evidence that most researchers in economics and management do not share their data voluntarily. We derive testable hypotheses based on the theoretical literature on information-sharing and relate data-sharing to observable characteristics of researchers. We find empirical support for the hypotheses that voluntary data-sharing significantly increases with (a) academic tenure, (b) the quality of researchers, (c) the share of published articles subject to a mandatory data-disclosure policy of journals, and (d) personal attitudes towards “open science” principles. On the basis of our empirical evidence, we discuss a set of policy recommendations.     

第二版《汉语大字典》引《古俗字略》疑误举例

《古俗字略》的主要工作是认同异体字,指明其间的“古”、“俗”、“通”关系。其中尽管有可取之处,但也存在不少疏漏。第二版《汉语大字典》对这些疏漏往往未加辨析就加以援引,由此造成了部分失误。举例分析并补正这些疑误,使其有益于《汉语大字典》的再次修订。     

兰州百合的核型分析

报道了兰州百合的染色体核型,其核型公式为2n=2X=24=2m(2SAT) 2sm 6st 14t,属于3A型,核型不对称性系数(As.K%)为81.37%。其中第一对染色体的短臂上具有居间随体。     

Joint ventures and technology adoption: A Chinese industrial policy that backfired

To spur technology transfer, emerging market policymakers often require foreign firms to form joint ventures (JVs) with domestic firms. Through knowledge spillovers, JVs may reduce technology acquisition costs for domestic firms. Yet domestic firm rents from JVs could discourage innovation through a cannibalization effect. Which force dominates is an empirical question. I address it with novel data on China's auto sector. In response to fuel economy standards requiring firms to upgrade technology or sacrifice quality, firms with JVs reduced quality and price relative to their counterparts. Consistent with cannibalization, firms with JVs drive the negative effect.     

三种洗涤剂对蚕豆根尖细胞遗传毒性的研究

以蚕豆根尖为材料,研究厕洁灵、丝毛剂和蔬果清洗剂对蚕豆根尖细胞的遗传毒性.利用不同浓度的厕洁灵、丝毛剂和蔬果清洗剂为诱变剂,测定蚕豆根尖细胞的微核率和染色体畸变率.结果：不同浓度的洗涤剂能诱发较高频率的微核,还能诱导染色体产生多种类型的染色体畸变.结论：三种洗涤剂对植物根尖细胞具有明显的致突变效应,有一定的遗传毒性;其中洁厕剂的毒性最大,丝毛剂次之,果蔬洗涤剂最弱.     

A cognitive perspective on second language acquisition process

Second language acquisition (SLA) has been one of the central topics in cognitive science. Various theories regarding the SLA process have evolved and have been a subject of debate over the years. With a critical review of the competing theories of cognition and language development, this paper examines the differences between L1 and L2 acquisitional processes and then proposes a model of SLA process from a cognitive information-processing perspective. The pedagogic implications of this model are also discussed.     

Financial information management for university departments,using open-source software

This paper presents a model to analyse the different outcomes generated by the application of Task-Technology Fit (TTF) theory to economic and financial information management in university departments. This model extends that proposed by Goodhue (1995), in two ways: (i) a key role is played by the manager in designing the technology and in performing the task in question. Both of these aspects can be modified, depending on the evaluation made of a series of characteristics (or dimensions) inherent to the model. (ii) The free dissemination of the source code of the application not only allows the transfer of knowledge, but also creates virtual communities which, through collaborative work and the exchange of experiences, can achieve a better fit of the technology to the task at hand. This model has been introduced in several departments at the University of Granada (Spain), and evaluated in terms of the results obtained at both individual and group levels. This evaluation was conducted by means of in-depth interviews with departmental managers.     

中国英语学习者英语习得过程中的零主语习失

文章着重阐述中国英语学习者英语学习过程中的零主语初始习失现象（initial unlea-rn-ing）旨在论证在中国英语习得者的中介语中,是否存在零主语的初始习失。研究发现,中国英语习得者的中介语中并不存在零主语的初始习失现象,二语习得者会把母语中的零主语参数迁移到二语的中介语中,而且在所测试的所有句子结构中,这一迁移无一例外地存在。