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51.
52.
Categorical perception, demonstrated as reduced discrimination of within‐category relative to between‐category differences in stimuli, has been found in a variety of perceptual domains in adults. To examine the development of categorical perception in the domain of facial expression processing, we used behavioral and event‐related potential (ERP) methods to assess discrimination of within‐category (happy‐happy) and between‐category (happy‐sad) differences in facial expressions in 7‐month‐old infants. Data from a visual paired‐comparison test and recordings of attention‐sensitive ERPs showed no discrimination of facial expressions in the within‐category condition, whereas reliable discrimination was observed in the between‐category condition. The results also showed that face‐sensitive ERPs over occipital‐temporal scalp (P400) were attenuated in the within‐category condition relative to the between‐category condition, suggesting a potential neural basis for the reduced within‐category sensitivity. Together, these results suggest that the neural systems underlying categorical representation of facial expressions emerge during the early stages of postnatal development, before acquisition of language.  相似文献   
53.
This paper focuses on the representation of post-productive countryside in Finland by exploring how the rural is presented in the context of second home tourism. Being an integral part of rural areas and their history, second homes are an established example of the post-productive consumption of countryside. The international and Finnish literature on rural images provides the theoretical framework for the paper. Research on rural visions has been active in recent years with an emphasis on the Anglocentric interpretations of the rural idyll. This paper contributes to this discussion by providing an empirical review of Finnish popular discourses of second homes. The review is based on an analysis of second-home owners' motives and media representations. The second home countryside is analysed as a farmscape, wildscape and activityscape. The results suggest that the Finnish second home landscape is seen as wilderness (1), life at second homes imitates visions of traditional rural life (2), and the environment is used for traditional consumptive and leisure activities (3).  相似文献   
54.
When implementing innovations, disturbances are very likely to take place. Disturbances are undesirable because they can lead to unwanted outcomes, such as economic losses and work overload to workers. However, they can be powerful opportunities for learning and re-designing innovations. Here, we will present activity theoretical tools for analyzing disturbances in a way that they could be used as learning opportunities. We illustrate the proposed tools by analyzing a disturbance that took place during the implementation of a project of biogas production. By interpreting the disturbance process with a network of activity systems, we found that on-farm disturbances were formed as ruptures, innovations and asynchronies originated in other activity systems. This finding suggests that disturbances are outcomes of the functioning of networks, rather than simple results of failure of individuals or technical devices. The proposed tools could be used in interventions to help practitioners and ergonomists to recognize the systemic and networked nature of problems, and therefore, realize that they may require the collaboration of actors from different activities. In this sense, disturbances may be turned into opportunities for learning and developing innovations. We conclude by discussing how the method could be used in ergonomic design and intervention.  相似文献   
55.
Outsourcing is a phenomenon that as a practice originated in the 1950s, but it was not until the 1980s when the strategy became widely adopted in organizations. Since then, the strategy has evolved from a strictly cost focused approach towards more cooperative nature, in which cost is only one, often secondary, decision-making criterion. In the development of the strategy, three broad and somewhat overlapping, yet distinct phases can be identified: the era of the Big Bang, the era of the Bandwagon, and the era of Barrierless Organizations. This paper illustrates that the evolution of the practice has caused several contradictions among researchers, as well as led to the situation where the theoretical background of the phenomenon has recently become much richer. Through examining existing research, this paper intends to identify the development of outsourcing strategy from a practical as well as a theoretical perspective from its birth up to today. In addition, through providing insights from managers in the information technology industry, this paper aims at providing a glimpse from the future – that is – what may be the future directions and research issues in this complex phenomenon?  相似文献   
56.
Summary: Two multivariate L 1 objective functions, namely the k–variate extensions of the classical mean deviation and mean difference, are considered. The duality between the original data vectors and the hyperplanes going through the origin and k – 1 data points is discussed and, consequently, different interesting representations and interpretations of the multivariate mean deviation are introduced. A similar duality is found between the lift data vectors and the hyperplanes going through k data points leading to different representations of the multivariate mean difference. The objective functions are also shown to have interpretations in terms of the centers of facets of the data based zonotopes and lift zonotopes. Moreover, interchanging the roles of the data vectors and the data hyperplanes yields nonparametric measures of (angular) distances between the data vectors as well as between the hyperplanes. Finally, multivariate sign and rank based tests and estimates in the one–sample and several–samples multivariate cases are discussed to illustrate the theory.*The authors wish to thank the referees for valuable comments and suggestions. The research was partially supported by the Academy of Finland.  相似文献   
57.
This article studies the functions of telecare-mediated discussions in mental health floating support services. Home Screen, the telecare studied, is a touchscreen computer software that enables real-time audiovisual contact between users. The results indicate that Home Screen functions as a medium to discuss and check clients’ current situation and to sum up and plan their goals. The functions of Home Screen are not stable, but instead they are produced and negotiated in the interaction. Portraying Home Screen as a transitional device, this article supports the view that telecare enables clients to remain in their homes while receiving the care needed.  相似文献   
58.
This nation-wide probability sample survey study among Finnish majority group members (N?=?335) focused on the interactive effects of objective and subjective ethno-cultural diversity on three indicators of intergroup relations: outgroup attitudes, perceived group and personal discrimination, and outgroup trust. Complementing previous research that has mostly examined a linear relationship between cultural diversity and intergroup relations, special attention was given to moderate diversity contexts, which are claimed to pose different challenges to intergroup dynamics than high- and low-diversity contexts. It was hypothesised that majority group members who live in contexts characterised by moderate levels of objective diversity but subjectively perceive high levels of diversity will report more negative outgroup attitudes, lower levels of outgroup trust and higher levels of discrimination, as compared to those living in low- or high-diversity contexts. The hypothesis was confirmed for perceived group discrimination and outgroup trust. The results highlight the need to acknowledge possible non-linear relationships between diversity and intergroup relations.  相似文献   
59.
Immigration and family change are two demographic processes that have changed the face of European societies and are associated with inequalities in child outcomes. Yet there is little research outside the USA on whether the effects of family dynamics on children’s life chances vary by immigrant background. We asked whether the effect of parental separation on educational achievement varies between immigrant backgrounds (ancestries) in Sweden. We used Swedish population register data on two birth cohorts (born in 1995 and 1996) of Swedish-born children and analyzed parental separation penalties on grade sums and non-passing grades (measured at ninth grade) across ten ancestry groups, defined by the mother’s country of birth. We found that the parental separation effects vary across ancestries, being weakest among children with Chilean-born mothers and strongest among children with mothers born in Bosnia and Herzegovina. In general, the effects were weaker in groups in which parental separation was a more common experience.  相似文献   
60.
Population and Environment - Floods are a common natural hazard in Bangladesh, and climate change is expected to further increase flooding frequency, magnitude and extent. Pregnant women...  相似文献   
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