关于1, 1/2, …, 1/n的一类初等对称函数的2-adic赋值

设n和k为正整数且n≥k.本文考虑关于1,1/2,…,1/n的第k次初等对称函数■的2-adic赋值．设p为素数．2015年,Lengyel证明v_p(H(n,k))>-klog_pn+O_k(1),其中v_p(H(n,k))表示H(n,k)的p-adic赋值,O_k(1)表示一个依赖于k的常数．2017年,Leonetti和Sanna猜想：对所有足够大的正整数n,总存在一个正的常数c=c(p,k),使得v_p(H(n,k))<-clogn,并对不超过x的正整数n证明了当n的p-adic表示是以k-1的p-adic表示为起始值时,除了至多3x^0.835个例外之外此猜想是正确的．本文给出了H(n,2)的2-adic赋值的确切值或下界,部分验证了上述猜想．     

Can PC format CV reveal the true value of environmental resources in developing countries？ A laboratory experiment in China

This is a report on payment card format contingent valuation prediction validity in China based on the individual level comparison in a world heritage site evaluation. An evaluation index system of indicators is set up according to the consistency of the individual willingness to pay as well as the mean （or median）, the positive （or negative） proportion in the hypothetical context and those in the actual donation context. We took the conservation of a combined world heritage site Wuyi Mountain in China as the case study. By one-to-one individual level comparison, we demonstrate that people usually overstate their paying intention and overestimate their paying abilities, and the hypothetical individual WTP, mean, median, positive proportion and negative proportion are all significantly different from those in the actual context in this case. However, although the relationship between WTP and socioeconomic characteristics in the hypothetical context was not consistent with that in the actual situation, the survey still demonstrated the maximum support proportion and the least opponent proportion to the project when it was carried out. So we can conclude that in this case PC format CV is a poor indicator, partly owning to its free binding. We also find that when a person decides whether to pay （intention）, he or she is more affected by his/her knowledge structure and social duty; when he/she really decides on how much he/she will pay, income becomes the most important factor.     

基于模糊数学理论普通高校体育课学生学习评价体系研究

以普通高校大学公共体育课学生学习成绩为研究对象,依据模糊数学理论,采用层次分析法和数理统计法构建了学生体育课学习评价体系.该体系包含了学生体育技能、健康需求、情感体现和社会适应等元素,并给出体育课学生学习成绩的模糊数学模型.通过算例证明,该数学模型算法准确、便捷、适用,所提出的评价体系具有客观性、科学性、有效性和公正性,为今后体育课程学生学习效果的评价提供理论依据.     

关于个人住房抵押贷款的几点思考

从我国个人住房抵押贷款的现状谈起,指出了我国目前个人住房抵押贷款存在的一些问题.并提出了发展及完善个人住房抵押贷款的对策.     

广义函数的单点值研究

在广义函数的经典赋值方法的基础上利用等价方式及一致收敛方法定义了一种广义函数的集值     

浅谈城市房屋拆迁估价

在明确城市房屋拆迁估价内涵的基础上,说明了如何选择估价机构、拆迁估价实务、估价结果公示、拆迁估价纠纷调处等主要技术性问题。     

论批判理论对现代学生观的影响

学生观是人们对学生的基本认识和根本态度，是直接影响教育活动的目的、方式和结果的重要因素。批判理论在教育中重视师生之间的交往，主张人的差异性，个性的多元化。这对促使教师重塑其学生观，尤其对于中国教育确认个体价值和培养个体独立人格具有巨大的启迪作用。     

Ecosystem valuation and the conservation of wild lands in vigorous economic regions:A case study in Jiuduansha Wetland,Shanghai

As the loss of wild lands to satisfy traditional economic development has become a global environmental problem in recent decades, using ecosystem valuation to estimate the total economic value (TEV) of an ecosystem has become popular. The main purpose of the ecosystem valuation is to strengthen the importance of ecosystems, and bring the ecosystem services into the traditional cost-benefit analyses of land use strategy. Some studies have illustrated that in remote areas, wilderness can produce more value if it is conserved, rather than converted to traditional agricultural or industrial uses. The same situation does not seem to exist in vigorous economic regions. Thus, a case study was conducted on the Jiuduansha Wetland in Shanghai using three approaches: the direct market valuation, the replacement valuation and the contingent valuation. The net present TEVs of three land use scenarios over one hundred years were evaluated. The results proved that simply based on ecosystem valuation, when compared with the other two scenarios of "conservation" and "selective use", "partial conversion into terrene (dry land)" of Jiuduansha might be the optimal scenario for the well-being of the people in Shanghai. Land price was identified as the most important factor. This situation is likely due to the scarcity of land available for traditional economic development in Shanghai. Thus, we speculated that the fate of the wilderness to "be destroyed" in vigorous economic regions could not be changed simply based on ecosystem valuation. However, the variety of interest by local residents in wilderness might enhance the TEVs of scenarios such as "conservation" and "selective use", and affect the valuation results. Since some important benefits of natural ecosystems remain unknown and others are underestimated, we suggested that any land use decisions regarding the Jiuduansha Wetland should be conservative and cautious as converting wetlands into terrene is an irreversible process.     

纯粹型控股公司股权价值评估

以纯粹型控股公司股权价值评估为研究对象，在介绍、比较目前三种公司价值评估技术方法即相对价值评估法、贴现现金流量估价法和期权估价法及其各自特点和适用范围的基础上，提出了运用现金流贴现法中的红利贴现模型评估纯粹型控股公司股权价值的观点，并就如何具体运用红利贴现模型评估纯粹型控股公司股权价值做了详细论述。     

模糊评判在房地产估价中的应用

从模糊数学的思想出发，提出了在房地产估价中引用模糊评判方法的必要性和合理性，建构出了“模糊估价法”的数学模型，并在此基础上结合实例，对其进行了阐述。