Abstract Diverse identification and positioning technologies like radio-frequency identification (RFID), real-time locating systems (RTLS), and wireless sensor net- works (WSN) are among the enablers for the Internet of Things (IoT). Although the cost-effective integration of these enabling technologies into existing enterprise infrastructures is very important for companies, integration aspects are ignored by researches frequently. Even worse, the increasing diversity of identification and po- sitioning technologies and corresponding applications leads to more expensive in- tegration and application development processes. Up to now these technologies are used rather separately in different applications, but it is only a question of time before these technologies have to be used within the same application in parallel. Furthermore it could be observed, that existing commercial middleware products aiming at integration are focusing on passive RFID only. Hence there is a need to functionally extend existing solutions. This contribution introduces an integration and application platform for diverse enabling technologies for the Internet of Things that has been derived from the requirements of real world applications. An overview on applications of the Internet of Things is given and a selection of applications that have been successfully implemented in research and development projects is exam- ined in detail. The functionalities provided by the platform and the corresponding abstract software architecture are derived from these applications.
The Internet of Things (loT) envisages a dynamic network of networks where everyday objects can interact with each other, sense the environment and potentially act on it. Although this seems to be a simple concept, the structural and technical challenges that arise are manifold. This paper gives an overview of some of these challenges and presents the related emerging technologies and research trends.
Although the cost-effective integration of diverse smart object technologies like radio-frequency identification (RFID), real-time locating systems (RTLS), and wireless sensor networks (WSN) into existing enterprise infrastructures is very important for companies, integration aspects are ignored by researches frequently. Furthermore it could be observed, that existing commercial middleware products aiming at integration ignore the trend of consolidation between diverse smart object technologies by focusing on passive RFID only. This paper introduces the concept of an integration platform for diverse smart object technologies together with an abstract software architecture. The functionalities that such a platform should provide are derived from the requirements of real world applications and aim at drastically reduced integration costs.
This paper examines the effects of a professional development programme on the attitudes towards the teaching and learning of teachers in the Anglophone part of Cameroon. The development programme combines a multiplier system with school-based in-service training. The research compares the effects that the training had on the attitudes of three groups of teachers in a control group design: (1) teach- ers participating in the in-service training, subdivided into (1a) teachers trained as multipliers and (1b) teachers trained by the multipliers, and
(2) teachers who did not participate in the training. The study featured a quantitative control group design (n = 292) and is intended to contribute to the discussion on the sustainable effects of in-service teacher training in low-income countries. The data collection was conducted in 13 secondary schools in Cameroon. The results suggest that the programme had effects on the teachers’ attitudes and classroom practices.
This study demonstrates the existence in Seville of lusterware production centers that operated under the authority of the Abbadid princes over several decades
during the second half of the eleventh century. Deliberately
situated within the Taifa period, this material clearly bears the direct influences of the various luxury ceramics produced in both the Western and Eastern regions of the Islamic realm, a phenomenon not unheard
of in the history of islamic ceramics. The fragments included in this grouping possess decorativ and technical features that have allowed for a distinct characterization
of this type of lustetware. Research conducted thus far
has found these types represented mainly in the southern
regions of the Iberian Peninsula.