互补品天才

安德烈和爱德华当初是怎么想的？ 1900年，就在两兄弟刚刚接管家族设在克莱蒙一费朗市橡胶生意之后不久，他们决定为旅行者出版一本指导手册。在他们的《米其林指南》一书当中，作者提供了大量加油站、酒店、餐厅和观光景点的信息，并配有详尽的地图和旅行提示。该书第一版印刷了35000册，米其林公司免费将其发放给那些感兴趣的读者们。他们的这一做法后来被证明是一个极其天才的举动。     

Social Amplification of Wildfire Risk: The Role of Social Interactions and Information Sources

Wildfire is a persistent and growing threat across much of the western United States. Understanding how people living in fire‐prone areas perceive this threat is essential to the design of effective risk management policies. Drawing on the social amplification of risk framework, we develop a conceptual model of wildfire risk perceptions that incorporates the social processes that likely shape how individuals in fire‐prone areas come to understand this risk, highlighting the role of information sources and social interactions. We classify information sources as expert or nonexpert, and group social interactions according to two dimensions: formal versus informal, and generic versus fire‐specific. Using survey data from two Colorado counties, we empirically examine how information sources and social interactions relate to the perceived probability and perceived consequences of a wildfire. Our results suggest that social amplification processes play a role in shaping how individuals in this area perceive wildfire risk. A key finding is that both “vertical” (i.e., expert information sources and formal social interactions) and “horizontal” (i.e., nonexpert information and informal interactions) interactions are associated with perceived risk of experiencing a wildfire. We also find evidence of perceived “risk interdependency”—that is, homeowners’ perceptions of risk are higher when vegetation on neighboring properties is perceived to be dense. Incorporating social amplification processes into community‐based wildfire education programs and evaluating these programs’ effectiveness constitutes an area for future inquiry.     

Interactional Associations of Gender on Savings Behavior: Showing Gender’s Continued Influence on Economic Action

This study looks at how gender relates to a critical economic behavior—savings activity. We start with the proposition that gender is not merely an additional variable to explain savings choices. Gender is the primary type of social categorization in the U.S. today. Therefore, other variables will be differently relevant to savings depending on gender. We use a national survey, the 2006 Economic Decision Making Survey conducted by Michigan State University’s Institute for Public Policy and Social Research, to examine the proposition. Basic frequencies reveal nonsignificant differences in savings participation across gender, but regression analysis including interactions of gender with other key variables reveals that multiple aspects of individuals’ lives are influenced by gender to predict savings plan participation.     

Case study for evaluating campus sustainability: nitrogen balance for the University of Minnesota

American ecologists recently began to address the ecology of cities. Concurrently, higher education institutions have developed sustainability education programs and instituted sustainability policies and projects. This paper draws together these two disparate areas by examining the nitrogen (N) budget of the Twin Cities campus of the University of Minnesota. We addressed the question: what were the annual inputs, outputs and internal cycles of N on the University of Minnesota Twin Cities campus? We found that 508 Mg N yr-1 were brought into the campus and 494 Mg N yr-1 were emitted from the University of Minnesota campus. The largest N inputs were abiotic fixation (conversion of N₂ to NO_x by combustion) and food for humans and animals. The largest N output was NO_x, followed by wastewater. Our results expand the understanding of the ecology of institutions within an urban area and provide an opportunity for improving urban ecology education and environmental policy at educational institutions.     

The Interpretation of Line of Regard by Prelingually Deaf Children

The ability of 5- to 12-year-old deaf children to utilise and interpret another person's visual line of regard (where the eyes are looking) was studied in four experiments using cartoon faces. The children had little difficulty in determining whether or not a face was looking directly at them. They had more difficulty, however, with more complex tasks requiring them to infer mental states of desire and intention from line of regard and to ignore line of regard when it was inappropriate to attend to this cue. Deaf children raised in a hearing environment appear to have more difficulty with these more complex tasks than hearing children. The results are discussed in terms of the special difficulties facing some deaf children in the development of skills involving utilisation of line of regard and the implications for the development of joint attentional behaviour, theory of mind and dyadic social interaction in deaf and hearing children.     

Educational equity in ethnically diverse group work

Educational research in cooperative learning suggests that inequity based on perceived status may be an issue with heterogeneous cooperative learning groups. This paper explores issues of status based on race, ethnicity and cultural background in the New Zealand tertiary classroom where there is a diverse mix of domestic and international students. A four-year research project examined attitudes and perceptions of both domestic and international tertiary students towards cooperative learning. The findings of the research project indicate that initial assumptions of relative status and ability of group members have a major effect on the outcomes of the group. These assumptions, demonstrated by both domestic and international students, may be based on expectations of language ability and familiarity with the pedagogical environment, including the assumed norms and behavioural patterns of the host educational setting, and may disadvantage students from different cultural backgrounds. This can become a self-fulfilling prophecy limiting the effective interaction and participation in the group by international students and other students perceived to be of low status, and the development of trust and reciprocal interdependence among group members. Strategies to weaken the effects of status, promote more equitable interaction and foster productive group outcomes are proposed.     

Mental Rotation of Dynamic,Three‐Dimensional Stimuli by 3‐Month‐Old Infants

Mental rotation involves transforming a mental image of an object so as to accurately predict how the object would look if it were rotated in space. This study examined mental rotation in male and female 3‐month‐olds, using the stimuli and paradigm developed by Moore and Johnson (2008) . Infants were habituated to a video of a three‐dimensional object rotating back and forth through a 240° angle around the vertical axis. After habituation, infants were tested both with videos of the same object rotating through the previously unseen 120° angle, and with the mirror image of that display. Unlike females, who fixated the test displays for approximately equal durations, males spent significantly more time fixating the familiar object than the mirror‐image object. Because familiarity preferences like this emerge when infants are relatively slow to process a habituation stimulus, the data support the interpretation that mental rotation of dynamic three‐dimensional stimuli is relatively difficult—but possible—for 3‐month‐old males. Interpretation of the sex differences observed in 3‐ and 5‐month‐olds’ performances is discussed.