平台的构建模式及平台的治理方式研究

随着分工的不断深化,企业间的竞争战略已经从企业的个体行为转向群体合作,平台组织成为主流的产业组织形式。核心企业构建平台主要由两种模式：先积累用户规模再吸引关联企业的模式和先关联利益相关企业再向消费者传递价值的模式。由于机会主义的存在,平台治理必不可少,以内部治理为主,外部治理为辅的多主体共同参与的平台治理模式已经成为平台治理的主流模式。     

试论我国内部审计制度变迁对民营企业的影响

在我国内部审计制度发展之初,政府无意干涉民营企业内部审计制度的建立。随着民营企业的发展,基于提高自身经营活动的效益性需要,民营企业自发地开展了内部审计工作。但民营企业内部审计的自主发展存在诸多弊病。随着我国内部审计制度的发展和完善,民营企业内部审计逐渐被纳入政府统一管理的范围。民营企业内部审计工作在制度的推动下必将得到进一步的发展。     

学生管理工作的"知"与"行"

本文就学生管理工作的具体反差展开论述,提出了在学生管理工作中不仅要知道其重要性,更应该在实际工作中落实到行动中,做到"知"与"行"统一.     

广义线性模型极大似然估计弱相合性的数值模拟

广义线性模型是经典线性模型的自然推广,它是一类应用广泛的统计模型.选择Probit模型,利用matlab编程,通过数值模拟的方法验证了广义线性模型的极大似然估计的弱相合性.     

The Teacher Behavior Inventory: validation of teacher behavior in an interactive lecture environment

Students’ rating of teacher behaviors provides valuable information on teaching improvement and instructional quality. Unfortunately, there is a lack of new validated instruments for measuring teacher behaviors. The Teacher Behaviors Inventory is an old inventory that was initially developed to measure teaching behaviors as regards lecture-based instructions, which is effected through the use of low-inference items. The aim of this study was to assess its continued suitability in the present educational setting by examining its construct validity and internal consistency through the lens of one lecturer’s teaching behaviors, as rated by 527 students after six interactive lectures. The variables evaluated, as mentioned above, were achieved after an items removal process, which resulted in a 32-item version. Apart from being valid and reliable, this condensed version allows for immediate assessment of teaching behaviors after an instruction session as the rating procedure is now more straightforward and less time-consuming, and also enables a reduction in rating errors. Therefore, the 32-item format serves as a practical diagnostic feedback tool in the present educational arena, permitting a longitudinal teaching behavior assessment to enhance teachers’ professional development.     

Olivine-norite rock detected by the lunar rover Yutu-2 likely crystallized from the SPA-impact melt pool

Chang’E-4 landed in the South Pole-Aitken (SPA) basin, providing a unique chance to probe the composition of the lunar interior. Its landing site is located on ejecta strips in Von Kármán crater that possibly originate from the neighboring Finsen crater. A surface rock and the lunar regolith at 10 sites along the rover Yutu-2 track were measured by the onboard Visible and Near-Infrared Imaging Spectrometer in the first three lunar days of mission operations. In situ spectra of the regolith have peak band positions at 1 and 2 μm, similar to the spectral data of Finsen ejecta from the Moon Mineralogy Mapper, which confirms that the regolith''s composition of the landing area is mostly similar to that of Finsen ejecta. The rock spectrum shows similar band peak positions, but stronger absorptions, suggesting relatively fresh exposure. The rock may consist of 38.1 ± 5.4% low-Ca pyroxene, 13.9 ± 5.1% olivine and 48.0 ± 3.1% plagioclase, referred to as olivine-norite. The plagioclase-abundant and olivine-poor modal composition of the rock is inconsistent with the origin of the mantle, but representative of the lunar lower crust. Alternatively, the rock crystallized from the impact-derived melt pool formed by the SPA-impact event via mixing the lunar crust and mantle materials. This scenario is consistent with fast-cooling thermal conditions of a shallow melt pool, indicated by the fine to medium-sized texture (<3 mm) of the rock and the SPA-impact melting model [Icarus 2012; 220: 730–43].     

体育科学领域的问卷调查：常见问题与解决方案

摘要：对3所体育院校2014年授予学位的120篇研究生论文的分析发现,问卷调查法仍是体育学研究生使用较多的研究方法。学位论文中问卷调查法的误用主要表现为：1) 选题范围过大,研究定位于描述;2) 问题随意无依据,选项概念混乱,缺乏规律,且存在无效或不可能选项;3) 滥用重测信度和内容效度,误用同质性信度和构想效度。对研究者建议：1) 缩窄研究范围;2) 将研究整体定位于关系性研究;3) 使用等距量表法设计问卷题目,并以构想效度为核心,努力积累问卷的效度证据。     

我国城市体育文化与城市文化的相容性分析

随着物质生活水平的逐步提高,人们越来越重视城市的文化功能.但是在现实中,我国的城市发展过于强调经济指标,而忽视了文化建设,导致许多城市面临着文化缺失的问题.体育文化与城市文化,是社会主义文化的重要组成部分.文章分析总结了我国城市发展中的文化缺失现象,对体育文化与城市文化发展的相容性进行分析,认为促进体育文化的发展在一定程度上丰富了城市文化,增加了城市文化的内涵与活力,是繁荣城市文化的重要途径.提出要在塑造文化价值观、创建独特的文化发展模式、协调好文化事业和文化产业的关系、促进文化互动交流和文化创新等几个方面来推进城市体育文化的发展.     

析篮球运动员内线强攻能力的提高

随着现代篮球运动的发展,对球员的内线强攻能力提出了更高、更新的要求。文中通过对提高篮球运动内线强攻能力的重要性及所需要素的分析,提出了提高内线强攻能力的条件和方法