In addition to the special theme, C.HCI&ID topics include, but are not limited to, the following concerns related to Human-Centered Issues and Interactivity Design in the context of Technology-mediated Collaborations: Interactivity Design in Collaboration Collaborations in the Context of Social Networking Systems Social Benefits and Problems of Technology-mediated Collaborations Bridging of Collocation and Distance in Collaborations Values and Values-sensitive Design in and for Collaborations Privacy & Security in Collaborations Cognitive Models of Collaborations Collaborative Decision Making Gesture in Collaborations Interaction Criticism in the context of Collaborations Ethnography in the context of Collaborations Altruism Interfaces and Multimodality in Collaborations Usability Issues of Collaboration Technologies Implications of Mixed Physical and Digital Collaborations Implications of Collaboration Technologies for Sustainability & Adaptation to Climate Change Ethics of Collaboration Technologies Culture in the context of Collaborations Diversity & Social Inclusion in the context of Collaborations Human-centered Design and Humanity-centered Design in the context of Collaboration Technologies Emotion in the context of Collaboration Technologies Design Theory in the context of Collaboration Technologies Feminist HCI in the context of Collaboration Technologies Globalization in the context of Collaboration Technologies Health Implications and Applications of Collaboration Technologies Mobility Issues of Collaboration Technologies General Contexts Collaboration Technologies