Over the years, the alarming growth of the internet and its wide acceptance has led to increase in security threats. In Nigeria today, several internet assisted crimes known as cybercrimes are committed daily in various forms such as fraudulent electronic mails, pornography, identity theft, hacking, cyber harassment, spamming, Automated Teller Machine spoofing, piracy and phishing. Cybercrime is a threat against various institutions and people who are connected to the internet either through their computers or mobile technologies. The exponential increase of this crime in the society has become a strong issue that should not be overlooked. The impact of this kind of crime can be felt on the lives, economy and international reputation of a nation. Therefore, this paper focuses on the prominent cybercrimes carried out in the various sectorsin Nigeria and presents a brief analysis of cybercrimes in tertiary institutions in Ekiti-State. In conclusion, detection and prevention techniques are highlighted in order to combat cybercrimes in Nigeria.

Whiteboards although not new, form the basis for an effective learning in organisations and the educational sector of technology.The most common technique of erasing a whiteboard is by the use of a whiteboard wiper which is a hand held object manually controlled by the student or teacher. Although the type of material used in wiping the board has evolved, the manual labour is still a constant factor. Technologically, improvements have been achieved in this area where we have the Interactive Whiteboards, However, the cost of acquisition and installation is on the high side for most institutions. The need to save time, funds and effort in schools, offices and various other areas where boards are applied is exceedingly growing and through the use of an automated whiteboard wiper, this can be wholly achieved. In this paper, we design and construct a white board wiper that will completely wipe clean the board after being used with the aid of a push button. The Whiteboard Wiper is a purely electro-mechanical automated whiteboard erasing system, which incorporates a logic gate based control circuit and a mechanical system that will allow for adaptability to various sizes and is reasonably affordable.

Today’s location-based social media services have gone beyond mere sharing users’real-time locationsvia internet, they now serve as the bridge between the real world and the online world. Location-based social media application can now recommend point of interest to users based on geographical information and user’s profile gatheredon social media networks. Semantic web technology provides tools,platforms and techniques to extract meaning, processand integrate structure datafrom the social web and other sources.The rapid increasein number of social media networks and theenormous amount of geographical and social data flow across mobile and web platforms, have not only provided rich data source for web applications but also help developers to facilitate location-based social media services. However, unprecedented amount of noise and unstructured data exist on these networks, making knowledge representation, point of interest recommendation and precision of search engine results cumbersome processes.In this paper, we presentreview of various semantic technologies that could bedeployed to enhance location-based social media services with emphasis on architectures, tools, supporting technologies and the pros and cons of each of these technologies.