Applications of parks management information systems

The paper presents a conceptual model of an integrated management information system for municipal parks maintenance and operations. Research efforts in management information systems are presented in three categories: Business Research, Federally Sponsored Research, and Park and Recreation Systems Research. A case is made for further empirical research, the development of normative models, and evaluative criteria in an attempt to realize the full potential of electronic data processing in parks and recreation.     

纳米材料在化工生产中的应用

充满生机的二十一世纪,以知识经济为主旋律和推动力正引发一场新的工业革命,节省资源、合理利用能源、净化生存环境是这场工业革命的核心,纳米技术在生产方式和工作方式的变革中正发挥重要作用,它对化工行业产生的影响是无法估量的。这里主要介绍纳米材料在化工领域中的几种应用。     

浅谈计算机在自动控制中的应用

计算机自动化控制在钢铁行业、电力、自动驾驶、印刷造纸、纺织、化工、医药、食品等行业得到了广泛的应用,取得了显著的效果。本文简述计算机自控的特点、组成以及在化工行业中的应用。     

The role of culture in firm-bank matching

We assemble a unique dataset containing population-level information on loan applications in a region hosting two cultural groups to study the role of culture in firm borrowing decisions. We find that firms are more likely to apply for loans from culturally close banks. This effect is stronger for opaque firms, but not for less performing firms, indicating that firms do not expect preferential treatment from same-culture banks. Loan applications to culturally distant banks increase sharply with firms’ size and age, suggesting a role of information asymmetry in firm-bank matching. In contrast, we find no effect of cultural proximity on loan supply. Overall, our results show that demand-side factors play a key role in the formation of same-culture lending relationships.     

Predictability of nonlinear trading rules in the U.S. stock market

Most of the existing technical trading rules are linear in nature. This paper investigates the predictability of nonlinear time series model based trading strategies in the U.S. stock market. The performance of the nonlinear trading rule is compared with that of the linear model based rules. It is found that the self-exciting threshold autoregressive (SETAR) model based trading rules perform slightly better than the AR rules for the Dow Jones and Standard and Poor 500, while the AR rules perform slightly better in the NASDAQ market. Both the SETAR and the AR rules outperform the VMA rules. The results are confirmed by bootstrap simulations.     

高管海外背景与企业专利国际化 ——基于P CT申请的经验证据

在当前我国PCT(《专利合作条约》)国际专利申请(以下简称PCT申请)快速增长的背景下,本文使用2009~2019年创业板企业的数据,实证分析了高管海外背景对企业专利国际化的影响效果。研究发现:高管海外背景会正向促进企业专利国际化,且当高管既有海外求学背景又有海外任职背景时促进作用最强;相较于非CEO高管海外背景,CEO海外背景更能促进企业专利国际化;从内部治理因素看,高管股票期权激励正向调节高管海外背景对企业专利国际化的促进作用;从外部治理因素看,在知识产权保护程度低的地区,高管海外背景对企业专利国际化的推动作用更明显。本文的研究拓宽了国际专利申请的影响因素以及高管海外背景领域的相关文献,对企业开拓国际市场实现专利国际化具有指导意义。     

黄连温胆汤的临床研究进展

综述了近10年来黄连温胆汤的临床研究进展,如治疗精神疾病、消化系统疾病、代谢疾病、慢性肾功能衰竭、心血管疾病、五官科疾病等,为黄连温胆汤的深入研究和合理应用提供依据。     

经济类院校概率统计课程教学的改革与探索

文章提出概率统计课程教学改革的几点建议：教学内容的选择上，要有针对性、专业性、层次性；教学方法的运用上，要注重多样性、灵活性、创新性；同时注意加强数学实验课；数学建模课的教学。强调教学要理论联系实际，培养学生的应用能力。     

材料配比及施工因素对弹性环氧砂浆性能的影响分析

弹性环氧砂浆在水工混凝土建筑物的破损修补及抗冲磨防护结构中得到应用，但其在应用中常出现开裂等各种破坏现象。文章结合试验及施工中的现象，从配比及施工因素两方面对环氧砂浆的应用进行分析和讨论，并提出一些合理的建议。     

论激励性薪酬的选择性运用

激励性薪酬是任何组织都必须关注的内容，对其进行恰当的选择会让组织产生意想不到的惊喜。文章探讨了时组织的激励性薪酬该如何选择运用的问题。