In recent years, shared workspace systems have been an active area of research and development in computer-supported collaborative learning. A particular type of shared workspace systems provides graph-oriented visual representations for synchronous interaction, which are well suited for co-constructive activities. This type of systems is used in face-to-face settings as well as in distant sett...

Ionizing irradiation is a phytosanitary treatment that is increasing in application. The effect of low-oxygen, modified atmosphere storage on irradiation efficacy has not been addressed until recently. Hypoxia for 18 hours before irradiation until a couple of hours after irradiation reduced efficacy to varying degrees as measured by adult development or reproduction for four insects studied. It...

Palaearctic species of the weevil genus Mecinus Germar, 1821 are revised. A total of 47 species are recognized, one of which, M. baridioides sp. n. is new to science. Mecinus dorsalis var. tavaresi Hoffmann, 1958 (stat. rev.) is considered as a distinct species, whereas M. alboscutellatus var. atratulus (Solari, 1933) is maintained as a subspecies of M. alboscutellatus (Hustache, 1913). The fol...

We describe two communication interfaces of the C-CHENE Computer-Supported Collaborative Learning ("CSCL") environment that is used for solving physics problems at a distance in a network. The first manages text-based interaction using 'chat-boxes', and the second flexibly structures the interaction by providing a restricted set of communicative acts. Results of analyses of communicative acts g...

The seed-to-seedling transition is one of the most critical phases in life cycle plants (Muscarella et al., 2013; Wang & Smith, 2002) and a major bottleneck plant demography, thereby influencing population dynamics species coexistence (Poorter, 2007). Importantly, unique mobile stage flowering for determining their spatial distribution (Swamy 2011). Elucidating ecological mechanisms that regula...