农村土地使用权流动的障碍:内生机制不完备

当前基本上已经从政策上解决了土地使用权流动的障碍 ,但是土地并没有按照政策预期流动 ,反而土地抛荒越来越多。其主要原因就是土地使用权流动的内生机制不完备 ,土地流动的财产制度、土地使用权的价格体系、土地所承担的社会职能等方面存在着缺陷 ,这就需要完善土地使用权流动的内生机制。     

科学调控大学生劳动力市场的供给

随着我国社会经济改革向纵深发展,正在形成的大中专毕业生就业难问题也正成为人们关注的热点。如何科学调控大学生劳动力市场的供给显得尤其重要。从高等教育的和谐发展、多层次职业技术教育、地区之间劳动力的平衡供给和积极参与国际劳务合作等方面提出了相应对策,对缓解正在我国形成的大学生就业难问题具有现实意义。     

Methods for spatial and temporal land use and land cover assessment for urban ecosystems and application in the greater Baltimore-Chesapeake region

Understanding contemporary urban landscapes requires multiple sets of spatially and temporally compatible data that can integrate historical land use patterns and disturbances to land cover. This paper presents three principal methods: (1) core analysis; (2) historic mapping; and (3) gradient analysis, to link spatial and temporal data for urban ecosystems and applies their use in the Baltimore-Chesapeake region. Paleoecological evidence derived from the geochronology of sediment cores provides data on long-term as well as recent changes in vegetative land cover. This information, combined with contemporary vegetation maps, provides a baseline for conducting trend analyses to evaluate urbanization of the landscape. A 200-year historical land use database created from historical maps, census data, and remotely sensed data provides a spatial framework for investigating human impacts on the region. A geographic information system (GIS) integrates core analyses with historic data on land use change to yield a comprehensive land use and land cover framework and rates of change. These data resources establish the regional foundation for investigating the ecological components of an urban ecosystem. Urban-rural gradient analyses and patch analyses are proposed as the most appropriate methods for studying the urban ecosystem as they link ecological and social patterns and processes for varying degrees of urbanization.     

南京临时政府时期的近代国家转型与民族关系之建构——以“五族共和”为中心

南京临时政府时期是中国近代国家转型与民族关系之建构的重要阶段,其基本情态就是"五族共和"。它是一个历史建构过程,包括思想文化领域与政治实践领域的双重认同与整合,同时也表明了中国近代国家转型与民族关系建构过程中的重要历史转折。由于阶级和时代的局限,"五族共和"在理论认识和具体实践中仍然存在严重的现实困境和诸多问题,中国近代国家转型与民族关系之建构仍然面临严重的危机和挑战。     

The intersection of class origin and immigration background in structuring social capital: the role of transnational ties

The study investigates inequalities in access to social capital based on social class origin and immigration background and examines the role of transnational ties in explaining these differences. Social capital is measured with a position generator methodology that separates between national and transnational contacts in a sample of young adults in Sweden with three parental backgrounds: at least one parent born in Iran or Yugoslavia, or two Sweden‐born parents. The results show that having socioeconomically advantaged parents is associated with higher levels of social capital. Children of immigrants are found to have a greater access to social capital compared to individuals with native background, and the study shows that this is related to transnational contacts, parents’ education and social class in their country of origin. Children of immigrants tend to have more contacts abroad, while there is little difference in the amount of contacts living in Sweden across the three groups. It is concluded that knowledge about immigration group resources help us predict its member's social capital, but that the analysis also needs to consider how social class trajectories and migration jointly structure national and transnational contacts.     

Domains of Motivation in Men and Women for Initiating and Terminating Procreation in an Evolutionary Perspective

Children require considerable resources such as time and money to be raised. Still, despite the heavy costs involved, most people do decide to have children, a fact that raises the question of what motivates them to do so. Moreover, after having one or more children, people decide not to have additional ones, even though they might still be fertile. This raises the question of what motivates people to terminate procreation. The present paper aims to address these questions using a combination of qualitative and quantitative research methods. In Study 1, we used in-depth interviews and open-ended questionnaires that lead to the identification of 66 reasons for which people have children and 23 reasons for which people stop having children. In Study 2, we used principal component analysis that classified these reasons in broader motivation domains, 15 for procreating and 4 for terminating procreation. Sex differences were examined in each domain. By placing procreation in an evolutionary framework, this study aims to provide a deeper understanding of the motives that drive people toward and away from the process of having children.     

Initiative in work teams: adaptation and validation of the Personal Initiative at Group Level Scale / Iniciativa en los equipos de trabajo: adaptación y validación de la Escala de Iniciativa Personal a nivel Grupal

In this study, we conceptualize personal initiative as a collective construct and adapt and validate a scale to evaluate it with a sample of 308 Spanish participants belonging to 91 work teams. Personal initiative at group level is a behavioural syndrome in which the team shows an approach to work that is self-initiated, proactive, persistent, capable of modifying the atmosphere and pro organization. As a predictive variable, we analysed the climate for initiative as well as personal initiative at group level. The resulting variables that were analysed referred to organization and team performance, with the team productivity and innovation as the criteria, analysing radical innovation. The scale has suitable psychometric properties. The results show that there is a relationship between the two predictive variables. Furthermore, personal initiative at group level is related to team productivity, while the climate for initiative is related to innovation.     

Tweeting about emergency: A semantic network analysis of government organizations’ social media messaging during Hurricane Harvey

While social media like Twitter have been increasingly adopted by public-sector organizations, it remains less explored as to how government and emergency management (EM) organizations use these platforms to communicate with the public in response to emerging natural disasters. Extending the Situational Crisis Communication Theory (SCCT) to the realm of social media, this study examines the emerging semantic networks from 67 government and EM organizations’ official tweets during Hurricane Harvey over a three-week period. It identifies how multiple crisis response strategies—including instructing information, adjusting information, and bolstering—are constituted of different issues, actions, and organizational actors before, during, and immediately after the disaster event. Results suggest that government agencies use the strategy of instructing information predominantly before and during the disaster, whereas adjusting information and bolstering strategies are utilized more during post-disaster recovery. The study offers theoretical and practical implications of using a semantic network approach to studying organizational crisis responses.     

Critical Reflections on the March for Science

Using MacKendrick (2017) as a springboard, this essay explores the March for Science as an example of social mobilization. I lay out some concerns regarding the use of this tactic as a response to attacks on science and suggest some ways sociology could contribute to the development of more efficacious actions to address the denigration of scientific knowledge.     

Evaluating the effect of a campus-wide social norms marketing intervention on alcohol-use perceptions,consumption, and blackouts

Objective: To evaluate the effect of a campus-wide social norms marketing intervention on alcohol-use perceptions, consumption, and blackouts at a large, urban, public university. Participants: 4,172 college students (1,208 freshmen, 1,159 sophomores, 953 juniors, and 852 seniors) who completed surveys in Spring 2015 for the Spit for Science Study, a longitudinal study of students' substance use and emotional health. Methods: Participants were e-mailed an online survey that queried campaign readership, perception of peer alcohol use, alcohol consumption, frequency of consumption, and frequency of blackouts. Associations between variables were evaluated using path analysis. Results: We found that campaign readership was associated with more accurate perceptions of peer alcohol use, which, in turn, was associated with self-reported lower number of drinks per sitting and experiencing fewer blackouts. Conclusions: This evaluation supports the use of social norms marketing as a population-level intervention to correct alcohol-use misperceptions and reduce blackouts.