Este estudo objetiva analisar o uso do software VLAB, aplicado ao ensino de conteÃdos de QuÃmica, aos alunos do primeiro ano do Ensino MÃdio profissionalizante dos cursos de AdministraÃÃo e InformÃtica. A pesquisa foi desenvolvida na escola pÃblica da rede estadual de EducaÃÃo profissional, localizada na cidade de CrateÃs-CE. O estudo tem Ãnfase na influÃncia e presenÃa das tecnologias educativas nos processos de ensino e aprendizagem, numa perspectiva construtivista. Para a execuÃÃo desta pesquisa, contou-se com a participaÃÃo de 90 alunos, divididos em trÃs grupos distintos. Grupo 1 â 30 alunos utilizaram-se de abordagem do conteÃdo com vÃnculos ao laboratÃrio de CiÃncias; grupo 2 - 30 alunos utilizaram o software VLAB como ferramenta educacional para detalhamento do conteÃdo; grupo 3 - 30 alunos utilizaram o espaÃo da sala de aula de forma tradicional. O fator mensurÃvel a ser destacado foi o Ãxito no desenvolvimento cognitivo dos alunos do grupo 2, que usaram o VLAB e tiveram melhoria significativa de suas notas se comparadas anterior e posteriormente a esta pesquisa, condicionando-se um aumento percentual destas notas em 85%, de aprendizagem identificada por intervenÃÃo didÃtica aplicada. Denota-se, portanto a viabilidade do aprimoramento das relaÃÃes didÃticas do uso do VLAB, como proposta educacional no Ensino de QuÃmica, conforme o proposto no produto educacional desta dissertaÃÃo. / This study aims to analyze the use of VLAB software, applied to the teaching content of Chemistry, students of the first year of high school vocational courses in Business and Computing. The research was conducted in theEscolaEstadual de EducaÃÃoProfissional, located in CrateÃs - CE. The study has an emphasis on the influence and presence of educational technologies in teaching and learning, a constructivist perspective. To carry out this research, we counted with the participation of 90 students, divided into three distinct groups. Group 1 - 30 students were used to approach the content with links to the science lab, group 2-30 VLAB students used the software as an educational tool for detailing the content, group 3-30 students used the space of the classroom so traditional. The measurable to be highlighted was the success factor in the cognitive development of students in group 2, who used VLAB and had significant improvement in their grades compared before and after this research, conditioning is a percentage increase in 85 % of these notes, learning identified by didactic intervention applied. We denote thus enhancing the feasibility of the use of didactic relations VLAB as an educational proposal in Chemistry Teaching, as proposed in the educational product of this dissertation.

abstract: Interactive remote e-learning is one of the youngest and most popular methods that is used in today's teaching method. WebRTC, on the other hand, has become the popular concept and method in real time communication. Unlike the old fashioned Adobe Flash, user will communicate directly to each other rather than calling server as the middle man. The world is changing from plug-in to web-browser. However, the WebRTC have not been widely used for school education. By taking into consideration of the WebRTC solution for data transferring, we propose a new Cloud based interactive multimedia which enables virtual lab learning environment. Three modules were proposed along with an efficient solution for achieving optimized network bandwidth. The One-to-Many communication was introduced in the video conferencing and scalability was tested for the application. The key technical contribution is to establish a sufficient system that designed to utilize the WebRTC in its best way in educational world in the Vlab platform and reduces the tool cost and improves online learning experience. / Dissertation/Thesis / Masters Thesis Computer Science 2014

abstract: Cloud computing systems fundamentally provide access to large pools of data and computational resources through a variety of interfaces similar in spirit to existing grid and HPC resource management and programming systems. These types of systems offer a new programming target for scalable application developers and have gained popularity over the past few years. However, most cloud computing systems in operation today are proprietary and rely upon infrastructure that is invisible to the research community, or are not explicitly designed to be instrumented and modified by systems researchers. In this research, Xen Server Management API is employed to build a framework for cloud computing that implements what is commonly referred to as Infrastructure as a Service (IaaS); systems that give users the ability to run and control entire virtual machine instances deployed across a variety physical resources. The goal of this research is to develop a cloud based resource and service sharing platform for Computer network security education a.k.a Virtual Lab. / Dissertation/Thesis / M.S. Computer Science 2010