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Aligned with the United Nations 2030 agenda of leaving no one behind, a project called The Nest was initiated to create an in-house intentional learning space at two public housings in Klang Valley. In a small unit of public housing, most children in these houses sit on the floor in the living room to do their schoolwork or study with the TV switched on. Poor indoor environmental quality and lack of personal space are among the main reasons that lead to children not being able to study at home comfortably.

The research employed a quasi-experimental approach as the research field setting was not randomly assigned. Observation on the change in the quality of space and post-evaluation interviews with beneficiaries were conducted.

The findings show that besides the tangible space that the Nest project has created, it also has created in-tangible space. It has shown that even small spatial changes to existing spaces could improve children's active learning and the participation of parents in their children's learning.

This study focuses on the home learning experience and parental involvement in their children's learning, so perhaps future research can be done to measure the impact of home learning space on academic achievement.

The research outcomes show that a good quality of learning space influences the children's learning experience at home and the parents' involvement. It will also contribute to the development of the building regulation for high-rise affordable housing in Malaysia. Particularly in improving the optimum requirement to achieve better comfort quality for the learning space at the residential unit.

The Nest project will contribute to raising the awareness among all residents of public housing on the importance of in-house learning space and encourage them to build their own learning spaces through the Do-It-Yourself Guidelines.

The research outcomes show that both parental involvement and the quality of learning space influence the children's learning experience at home. It will contribute to the development of the building regulation for high-rise affordable housing in Malaysia. Particularly in improving the optimum requirement to achieve better comfort quality for the learning space at the residential unit.

As the core technology of blockchain, various consensus mechanisms have emerged to satisfy the demands of different application scenarios. Since determining the security, scalability and other related performance of the blockchain, how to reach consensus efficiently of consensus mechanism is a critical issue in the blockchain.

The paper opted for a research overview on the blockchain consensus mechanism, including the consensus mechanisms' consensus progress, classification and comparison, which are complemented by documentary analysis.

This survey analyzes solutions for the improvement of consensus mechanisms in blockchain that have been proposed during the last few years and suggests future research directions around consensus mechanisms. First, the authors outline the consensus processes, the advantages and disadvantages of the mainstream consensus mechanisms. Additionally, the consensus mechanisms are subdivided into four types according to their characteristics. Then, the consensus mechanisms are compared and analyzed based on four evaluation criteria. Finally, the authors summarize the representative progress of consensus mechanisms and provide some suggestions on the design of consensus mechanisms to make further advances in this field.

This paper summarizes the future research development of the consensus mechanisms.