区域地质调查工作中岩矿鉴定的有关问题探讨及建议

岩矿鉴定在地质调查研究中具有不可取代的重要作用,其工作水平和成果质量对区调工作的质量影响很大.近十多年来,区调岩矿薄片鉴定工作呈现薄弱化趋势.通过论述区调工作中岩矿薄片鉴定的重要作用;系统总结了我国区调岩矿薄片鉴定的4个发展历史阶段;分析了近年来我国区调岩矿薄片鉴定工作中存在的主要问题及其原因;提出了加强区调项目中岩矿鉴定工作、提升区调工作质量的对策和建议.     

青海玉树地震应急征用与补偿情况的调查分析

现实中由于自然灾害事发突然,灾害发生初期和灾后重建时期政府主导的应急征用与补偿不可避免。文章以"4·14"玉树地震为例,在问卷法、访谈法的基础上,统计分析了地震中的应急征用与补偿情况、政策知晓情况等,建议国家应急管理部门考虑民族地区应急征用的需求和补偿的特殊性,尽早制定出相关的应急征用与补偿法律、法规,切实在公共危机管理中发挥政府作用,保障被征用者权利与权益。     

福州大学城排水管材调查及改进措施分析

调查福州大学城排水管材应用,分析排水管材目前存在的问题,提出改进措施,探讨新型管材代替传统管材的可能性,为设计人员、施工单位及广大用户选择排水管材提供参考。     

The Ethics of Professorial Book Selling: Morality, Money and "Black Market" Books

This study used experimental and correlational techniques to examine perceptions that university faculty hold regarding the practice of professorial selling of examination textbooks to wholesalers. Faculty members (n = 236) from 14 universities and community colleges and a wide variety of academic disciplines responded to a web-based survey. We presented hypothetical selling situations to respondents with manipulated variables consisting of solicitation status (unsolicited versus solicited) and use of money (for faculty or for student activities). Both main effects and the interaction effect were significant such that respondents perceived it to be more ethical to sell an examination book when the book was unsolicited and when the money was being used to fund student activities. The variable most correlated with faculty members' beliefs that book selling is ethical and the faculty members' self-reports of whether or not they have engaged in bookselling was how widespread the practice appeared to be on campus. About 30 percent of faculty members sold textbooks over the past year at a dollar value of about $80 per professor. About 38 percent of respondents reported they believed the practice to be generally ethical. Implications for business ethics theory, students' moral development, and advancement of on-campus codes of ethics policies are discussed along with avenues for future research.     

黑龙江省泥炭中黄腐酸含量及开发途径

泥炭是黑龙江省重要的自然资源,腐植酸是泥炭主要特征指标,黄腐酸是腐植酸的重要组分,其分子量最小、活性最大、应用十分广泛;在省内５个主要区域,按平面和剖面选取大型泥炭矿做黄腐酸含量调查分析。     

Getting ahead or falling behind: Findings from the second wave of the National Income Dynamics Study

The National Income Dynamics Study is the first national panel study of South African individuals. Its objective is to track these individuals over time to study social mobility. This paper documents the survey design and a successful recontact record in Wave 2 before providing an overview of the key findings from the other papers in this issue of the journal. Those from the top of the income distribution were hardest to recontact. The papers show that average real incomes grew slightly between 2008 and 2010. However, life satisfaction and expectations of future upward mobility declined. Being unemployed and moving into unemployment is associated with the lowest level of life satisfaction. Aggregate employment did not decline much but there was significant labour-market churn. The National Income Dynamics Study data reveal high levels of grade repetition and a slow transition from school to work. Relocating is shown to be an important part of schooling and employment decisions.     

In Data We Trust? An Analysis of Indonesian Socioeconomic Survey Data

What if a popular dataset that has generated a large amount of literature has been misunderstood and has led to misleading inferences? This paper examines household expenditure data from the Indonesian National Socio-economic Survey (Susenas), which started more than 50 years ago. Appropriate use of Susenas data for policy analysis requires an understanding that the survey’s expenditure variable does not measure true out-of-pocket expenses, because it includes subsidies received by households when obtaining goods and services. We also highlight an abrupt change in the survey instrument that occurred in 2015, when the reference period for certain items was extended. For health items, this generated a change in the expenditure series that can be misinterpreted as being the result of a social health insurance reform introduced in 2014 to lower the health care burden on households. Accordingly, we propose a way to account for this artificial expenditure movement in Susenas.     

How household food shopping behaviors changed during COVID-19 lockdown period: Evidence from Beijing,China

The COVID-19 pandemic has had a great impact on food shopping behavior. However, changes in food shopping behavior and related decision-making mechanisms remain unexplored. This study conducted a face-to-face questionnaire survey with 900 residents in three communities in Haidian, Beijing, China, to analyze food shopping behavior during the periods of pre-lockdown, lockdown (January–March 2020), and post-lockdown. Our results indicated that the preference for fresh food e-commerce shopping was accelerated by the lockdown with the usage rate increasing by 48%; the wet markets were seriously hit by the lockdown policy and had not fully recovered by the post-lockdown period (with a 75% reduction in the usage rate during lockdown). The psychological mechanisms of changes in food shopping behavior revealed that the context (e.g., community facilities) and the perceived risk of COVID-19 were two significant factors impacting the four shopping choices investigated. Specifically, the context factors affected behavior directly for supermarkets and convenience stores and indirectly for e-commerce and wet markets. The findings are expected to help in guiding emergency responses during a future pandemic as well as the long-term construction of food supply facilities.