微课视角下的大学“经济数学”翻转课堂设计探析

从微课与翻转课堂的关系入手,探析大学"经济数学"微课设计的理念和思路、翻转课堂的构建与实践,例举基于微课的翻转课堂设计等,以提高学生学习自主性满足个性化学习的需要。

“经济数学”有效诊改与人才培养实践

“经济数学”科目难度较大,融合经济学原理,人才培养过程存在一些问题。文章基于职业教育改革背景,从建设基础、两链打造、建设实施、建设成效、不足与改进五个方面对湖南财经工业职业技术学院(下简称我院)“经济数学”开展人才培养实践进行诊改研究。

高职“经济数学”线上线下混合式“金课”的建设与实践

“金课”具有高阶性、创新性和挑战度的特点。该文根据“金课”特点,从高职“经济数学”课程目标、资源建设、教学实施及多元化考核等方面进行探索,以教师为主导、以学生为主体,基于线上“金课”资源与线下实体“金课”有机结合开展混合式教学。实践表明,线上线下混合式“金课”建设对学生自主学习、创新思维、团结协作、解决问题等综合能力的培养起到良好效果。

高职“经济应用数学”教学改革探讨

“经济应用数学”是高职院校经济管理专业实现学生教育培养的基础课程,是培养学生经济分析能力的重要科目。但是目前在教学实践中,学生数学基础较差,教学内容与教学方法单一等问题比较突出,“经济应用数学”课程教学难以达到专业培养要求,影响了经济管理专业学生的综合发展。基于此,本文从“经济应用数学”课程体系的构建情况出发,分析教学实践中存在的问题,并从教学思想、教学目标、教学内容、教学方法、教学评价等角度探究相应的改革策略。

“职教云+腾讯课堂直播”一体化线上教学在高职数学课程中的实践探究

为落实教育部疫情防控期间“停课不停教、停课不停学”部署,各级各类教师积极进行线上教学,尽力解决学生因疫情防控造成不能正常到校上课的问题。高职数学课教师适应新情况,积极参与传统课堂教学改革,充分利用线上教学平台探讨“经济数学”教学所面临的诸多挑战和机遇,给出“职教云+腾讯课堂直播”一体化线上教学模式,并在教学设计、教学过程和教学考核等方面进行了实践探索,为同类课程线上教学提供借鉴参考。

Primary Research on WSeveral Theorems,Laws and Corollaries of Hydrology

The conceptions of theorems, laws and corollaries of hydrology were put forward. Combining with hydrology practice, several theo- rems, laws as well as corollaries of hydrology were summarized. The study provided some references for accelerating the development of hydrology theory in these aspects and promoting the improvement of its production technology.

On Fair Prices of a Contingent Claim with Random Interval Payoff

In order to get the price of a contingent claim with random interval payoff, a concept of fair price was proposed based on weighted expected utility maximization. After setting up a programming model of maximizing the weighted expected utility involving basic securities and contingent claim,and using techniques in optimization analysis,explicit expressions of the fair price interval for a contingent claim were derived. Relations between acceptable price interval and fair price interval were discussed. It is shown that all fair prices fit the demand for acceptability of a market.

Optimized algorithm in mine production planning, mined material destination, and ultimate pit limit

An integral connection exists among the mine production planning, the mined material destination, and the ultimate pit limit （UPL） in the mining engineering economy. This relation is reinforced by real information and the benefits it engenders in the mining economy. Hence, it is important to create optimizing algorithms to reduce the errors of economic calculations. In this work, a logical mathematical algorithm that considers the important designing parameters and the mining economy is proposed. This algorithm creates an optimizing repetitive process among different designing constituents and directs them into the maximum amount of the mine economical parameters. This process will produce the highest amount of ores and the highest degree of safety. The modeling produces a new relation between the concept of the cutoff grade, mine designing, and mine planning, and it provides the maximum benefit by calculating the destination of the ores. The proposed algorithm is evaluated in a real case study. The results show that the net present value of the mine production is increased by 3% compared to previous methods of production design and UPL.

Fuzzy integral based measurement and assessment of medium and small enterprises'product innovation

A fuzzy integral based way of measurement assessment has been established by using linguistic varia-bles and combining fuzzy integral with hierarchy analysis for measurement of medium and small enterprises'product innovation. The conclusions drawn from analyses made with 20 medium and small enterprises providebases for governments to formulate applicable policies and for medium and small enterprises to enhance theirproduct innovation.

Determinants of Female Employment Rate in the European Union

The aim of this paper is to provide a clear insight about the determinants of female employment rate in the European Union where we have used panel data analyses of 27 countries members of the European Union from 1995 till 2009. Applying dynamic modeling, i.e, generalized method of moments （GMM） econometrics findings have driven us to system estimated model where the following institutional variables have been tested： maternity leave, child care facilities, college education, fertility rate, GDP growth, female unemployment rate and part-time employment. We expect these variables to have a positive impact on the female employment rate except for the female unemployment rate and maternity leave

Collection Cost Screening Mechanism in a Closedloop Supply Chain

Recently, the product remanufacturing has been a hot topic in the field of operational management, and more manufacturers are beginning to recover the value in their end of life （EOI.） products hy remanufacturing. This paper focuses on the closed loop supply chain where the retailer takes charge of not only retail, but also col- lection. There are two possible types of the retailer＇s collection cost as an assumption, i.e. high cost or low cost, and the retailer knows his type, whereas the manufacturer only has a prior prohability over the two possible cost types. This paper deploys the contracts with which the manufacturer can screen the type of the retailer to improve her profit under incomplete information. As a result, the pooling contract can perfectly coordinate the decentral- ized system under incomplete information, but the manufacturer obtains the lower profit; nevertheless, with the separating contracts the manufacturer obtains the larger profits though the system profit is lower.

The revision of classical stock model

On the basis of the analysis of classical stock model, according to the limitation of the model, the article puts forward the revision of classical model and enforces the applicability of the stock model.

The Latest Progress in Varying-coefficient Models

Varying-coefficient models are a useful extension of classical linear model. They are widely applied to economics, biomedicine, epidemiology, and so on. There are extensive studies on them in the latest three decade years. In this paper, many of models related to varying-coefficient models are gathered up. All kinds of the estimation procedures and theory of hypothesis test on the varying-coefficients model are summarized. Prom my opinion, some aspects waiting to study are proposed.

Contribution of ecotourism to poverty alleviation in Nyanga,Zimbabwe

This paper assesses the contribution of ecotourism to local communities and the environment.Livelihoods of local communities are examined to understand the socioeconomic situation of people living in proximity to ecotourism areas and their participation in ecotourism activities. The impact of ecotourism on the environment in Nyanga is also examined. The paper employs both literature review(secondary data) and a field survey(primary data) to achieve these objectives. To gather socioeconomic data of households and tourist traits, questionnaires were administered to120 households and 30 tourists in the study area. Key informant interviews were held in the survey to gather expert knowledge about ecotourism trends and environmental data in the area.Data were analyzed using Statistical Package for Social Sciences. Descriptive and inferential analyses were used for quantitative data while content and structural-functional analyses were used for qualitative data. The research revealed that ecotourism offers the highest salaries when compared to other sources of formal employment. Ecotourism activities were shown to positively impact the environment through the protection, preservation, and management of natural resources. The study concludes that ecotourism is a useful and sustainable poverty alleviation strategy which has not yet been fully exploited in Zimbabwe.

Comprehensive Evaluation of Sichuan Province Logistics Ability Based On Principal Component Analysis

Regional economy is the foundation for the development of the regional logistics and regional logistics as the support of the regional economic development, both interdependence, coordinated development, become the important factor of regional economic sus-tained and rapid development. This article selects relevant statistical data from 2002 to 2011 in Sichuan province were analyzed, and the quantitative mathematical model was established based on principal component analysis （pca）, and through the model for comprehensive evaluation of regional logistics caoability of Sichuan orovince.

Theoretical research and practical application of Mathematical economic models

Mathematical economic modeling is widely used to provide a reference for policy makers and guidance for the specific work of many departments, such as saving expenditures, reducing costs and improving profit. Particularly, it can predict and estimate the future, playing a great role in promoting the rapid development of science and technology as well as the management of market economy. In general, mathematics does not directly deal with the objective conditions on the management of market economy. In order to use mathematics to solve problems in the field of the management of market economic, it is necessary to carry out mathematical economic modeling.

On the True Face of the Economic Statistics

In 2012, China National Ministry of Education issued a new undergraduate course catalog, economic statistics to be classified as a second level discipline of applied economics. However, what specific content should be included in the second level discipline has become a very important issue. What should be taught to students or how can they adapt to the needs of the social market aroused a wide attention. For this case, the National Ministry of Education has given a clearly provision for economic statistics＇ core courses, but whether these main courses can reflect the actual needs and characteristics of economic statistics or not still needs some considerations and discussions. This article started from the angle of the studies on China and the U.S. Journals concerning economic statistics. Using text mining by R, a recent mainstream statistical analysis software, gives a comparative analysis on the contents of economic statistics for recent decades. We created wordcloud about the contents of core statistical journals by R which can help us visually examine the course of economic statistics discipline development for the comparative study. Besides, we drew a conclusion that there were significant differences between China and America＇s economic statistics, the main difference is the United States pay more attention to the exploration of new methods and be able to adapt to market demand, the development of China＇s economic statistics are still more traditional, it need a better understanding of the multi-disciplinary knowledge of education, such as Bayesian and dynamics. Another is that the curriculum of China＇s economic statistics are corrected for China＇s actual situation, a new training program pay more attention to students＇ practical ability and social practice. There are a lot of practical problems remain untouched or unsolved which need efforts of decades probably.

Characteristics, Constraints and Perspectives of the Fish Farming in Burundi

The fish farming was introduced in Burundi in about 1950s. Actually, several fish ponds were abandoned and many others were still unproductive. This study aims to present current state and perspectives of the fish farming for its real contribution to the socio-economic development. The results presented are compilation of physical and chemical parameters series measured in fish ponds and inquiries led in 2010-2014 to the fish farmers in seven provinces （40% of the total area of the country）. Weak values of some physical and chemical parameters showed that the majority of ponds are badly maintained. Thus, the dissolved oxygen values varied between 0.2 mg/L and 3.5 mg/L. The high relinquishment rate of the fish fanning （between 40% and 67% according to the provinces） could be explained by many constraints： no centers of fish farming breeding for various fish species and no production center of complete foods with local sub-products. About 75% of fish famers confirmed that they have never benefited framing in fish fanning. In spite of the diverse constraints, Burundi has a dense rivers system with favorable physical and chemical parameters and many appropriate sites for the fish farming. Thus, the main suggestions concern the sector reorganization.

An Empirical Study on Regional Differences of Higher Education Financial Aid in China

This paper uses empirical data to examine the issue of fairness of higher education student financial aid in China, noting different levels of regional economic development as the reason to explain the wide differences in available financial resources for student aid. Government efforts aimed at reducing the gap in recent years is discussed.

Is Using Mathematics and Game Theory in Analyzing Economic Phenomena Scientific？

In the article, the author presents some arguments concerning the ＂mathematical method issue＂ in modem economics. The author shows why some reasons, according to which we should use mathematics in （economic） theory, are not convincing （they are even tautological）, and what does mathematization have to do with arbitrariness of the orthodox economic theory. The author also shows why using game theory （a mathematical discipline） in modem microeconomics does not yield knowledge and correct explanation of economic situations and phenomena. At the end, the author presents fundamental questions that form the basis of economic science and its qualitative research methods, and shows what their practical relevance is. The purpose of this article is to argue, contrary to common opinion, that there can be an exact and objective science of economic phenomena that does not necessarily use modem mathematical theories or methods to explain these phenomena.