我国出版企业数字出版盈利模式研究评析

在数字化大潮中,寻找适合自己的盈利模式是出版企业发展数字出版的突破口。通过对数字出版盈利模式内涵与出版企业数字出版盈利模式现状研究文献的探讨,发现受众需求、数字产品(服务)、销售渠道和利润获取是数字出版盈利模式的四个核心要素。     

我国科技成果转化典型模式及影响因素研究

科技成果转化是一个复杂的知识转化、价值创造过程,直接影响了我国经济增长方式的转变进程。如何加速科学技术向现实生产力的转化,提高科技成果的孵化率亟需我国科研体系反思。针对目前我国科技成果转化的现状,对我国典型科技成果转化模式进行总结,构建了科技成果的转化链,分析我国科技成果转化中存在的影响因素并提出相关建议,对寻求提升科技成果转化率的突破口有一定的借鉴作用和指导意义。     

A review of the acculturation experiences of international students

Universities in Western countries host a substantial number of international students. These students bring a range of benefits to the host country and in return the students gain higher education. However, the choice to study overseas in Western countries may present many challenges for the international student including the experience of acculturative stress and difficulties with adjustment to the environment of the host country. The present paper provides a review of current acculturation models as applied to international students. Given that these models have typically been empirically tested on migrant and refugee populations only, the review aims to determine the extent to which these models characterise the acculturation experience of international students. Literature pertaining to salient variables from acculturation models was explored including acculturative stressors encountered frequently by international students (e.g., language barriers, educational difficulties, loneliness, discrimination, and practical problems associated with changing environments). Further discussed was the subsequent impact of social support and coping strategies on acculturative stress experienced by international students, and the psychological and sociocultural adaptation of this student group. This review found that the international student literature provides support for some aspects of the acculturation models discussed; however, further investigation of these models is needed to determine their accuracy in describing the acculturation of international students. Additionally, prominent acculturation models portray the host society as an important factor influencing international students’ acculturation, which suggests the need for future intervention.     

Fifty years of information management research: A conceptual structure analysis using structural topic modeling

Information management is the management of organizational processes, technologies, and people which collectively create, acquire, integrate, organize, process, store, disseminate, access, and dispose of the information. Information management is a vast, multi-disciplinary domain that syndicates various subdomains and perfectly intermingles with other domains. This study aims to provide a comprehensive overview of the information management domain from 1970 to 2019. Drawing upon the methodology from statistical text analysis research, this study summarizes the evolution of knowledge in this domain by examining the publication trends as per authors, institutions, countries, etc. Further, this study proposes a probabilistic generative model based on structural topic modeling to understand and extract the latent themes from the research articles related to information management. Furthermore, this study graphically visualizes the variations in the topic prevalences over the period of 1970 to 2019. The results highlight that the most common themes are data management, knowledge management, environmental management, project management, service management, and mobile and web management. The findings also identify themes such as knowledge management, environmental management, project management, and social communication as academic hotspots for future research.     

基于模糊实物期权的众创空间价值评估研究

在大众创业、万众创新的大背景下,众创空间作为一种新型的共享型、平台型创业服务企业,近年来发展迅速。当前众创空间在争取政府政策支持、开展并购转让与上市业务、拓宽融资渠道、引进优质创新创业项目等诸多方面遭遇发展瓶颈,这些问题的解决都离不开对其进行准确的价值评估。在借鉴模糊数学理论对实物期权模型进行修正的基础上,把自由现金流折现模型和实物期权模型结合起来,构建基于模糊实物期权的众创空间价值评估综合模型,从而更准确地对众创空间的整体价值进行评估,即运用自由现金流折现模型评估众创空间的经营性资产价值,运用模糊实物期权法评估众创空间的实物期权价值。为了验证众创空间价值评估综合模型的可行性,选取众创空间行业里极具代表性的创业黑马作为案例进行实证分析,并将评估结果分别与单纯应用实物期权定价模型得出的评估结果以及创业黑马在评估基准日的市值进行比较。结果表明,应用改进后的综合模型计算出的创业黑马的企业价值更接近评估基准日的市值。     

数学模型方法在解题中的应用

数学模型是针对或参考数学对象的特征或数量关系,采用形式化数学语言,概括地或近似地表述出来的一种数学结构。数学模型方法是处理数学理论问题的一种重要方法,也是处理各种实际问题的一般数学方法。运用数学模型方法需要有较强的理解实际问题的能力,以及通过实践加以验证的能力。重视数学模型方法的教学可以大大提高学生的解题能力,对培养学生的能力是十分有益的。     

宁夏农村居民消费和收入变迁关系的动态分析

采用宁夏1978-2012年的数据,运用协整理论和状态空间模型,对宁夏农村居民消费和收入之间关系及其变迁过程进行实证研究,结果表明：改革开放以来,宁夏农村居民消费与收入之间存在以1996年为界限的两段式均衡关系。实证结论启示,要解决农村居民消费不足的问题,不仅需要制定短期政策,更需要建立长效机制。     

先进典型宣传的时代困境及其出路

典型宣传作为我党政治工作中一道独特的实践图景,其承载着巨大的时代意涵:一方面它是引领人民群众发展进步的"助推器"与"方向盘",另一方面则是展现正面形象与弘扬社会主旋律的"重要窗口"。在多元价值并存的时代,典型宣传面临着巨大的冲击与挑战,其中既有社会大环境影响,更有宣传主体自身的原因。因此,维护典型人物宣传的严肃性与可信性,提升宣传内容的可读性与生动性,关注受众群体的心理感受和加强不同媒体间的通力合作,是提升先进典型宣传效果的实践路径。     

沙溪斑岩铜矿三维建模及铜品位空间变异研究

本文针对沙溪斑岩铜矿床,首先构建了主矿体的三维实体模型,之后以此作为约束对主矿体内部的铜品位数值开展空间变异研究分析。运用地质统计学方法,分别对主矿体走向、倾斜和厚度方向上的实验变异函数进行了理论模型拟合。拟合结果显示,铜品位在矿体走向方向上具有最好的连续性,较高的块金常数则显示出铜品位在较小范围内有很大的随机性,进而建议矿山提高矿区的勘探密度,进一步对矿体及品位的分布进行控制。     

英语专业学生思辨能力培养研究

由于英语学科特有的学习规律及教师教学和学生学习理念方面存在的偏差,导致了英语专业学生思辨能力的缺失,直接影响学生分析和解决问题能力的提高,抑制其创新能力的发展。这种现状已经引起了一些英语研究者的关注。互动教学是培养学生思辨能力的方法之一。