The identification of distinct user roles is an important theme in social media research. However, for Enterprise Social Networks (ESN), the use of social media within organisations, research identifying such roles is still lacking. Yet, understanding user roles, in particular regarding their knowledge contributions and communication behaviour, might usefully support companies in managing criti...

the cities are home to half of the people who live on the planet earth. they stimulate economic growth and cultural prosperity, but they are also the center of pollution and poverty. therefore, the livability of cities, in particular urban distressed areas, has always been one of the issues and challenges facing thinkers in different fields of urban management. however, the planning to improve ...

Children’s development is influenced by many contexts and institutional settings, including families, schools, childcare centres, churches, and ethnic community groups. Positive development is more likely when the social systems that help shape these settings work in a manner that enriches children’s environments and their access to resources. The capacity to work across contexts and maintain i...

Social interactions are a main source of stress in vertebrates. Social stressors, as well as other stressors, activate the hypothalamic-pituitary-adrenal (HPA) axis resulting in glucocorticoid release. One of the main components of the HPA axis is corticotropin releasing factor (CRF). The neuropeptide CRF is part of a peptide family including CRF, urocortin 1-3, urotensin 1-3, and sauvagine. Th...

Images become an important and prevalent way to express users’ activities, opinions and emotions. In a social network, individual emotions may be influenced by others, in particular by close friends. We focus on understanding how users embed emotions into the images they uploaded to the social websites and how social influence plays a role in changing users’ emotions. We first verify the existe...

In this paper I present a general framework for regression in the presence of complex dependence structures between units such as in time-series cross-sectional data, relational/network data, and spatial data. These types of data are challenging for standard multilevel models because they involve multiple types of structure (e.g. temporal effects and cross-sectional effects) which are interacti...

Many interventions for social skills acquisition aim to decrease the gap between social skills deficits in the individual and normative social skills; nevertheless little is known of typical social skills according to age difference in students. In this study, we developed new quintet of Hokkaido Social Skills Inventory (HSSI) to identify age-appropriate social skills for school adaptation. Fir...