It is commonly held that in vivo biological experimental models are concrete and non-fictional. This belief is primarily supported by the fact that in vivo studies involve biological models which are alive, and what is alive cannot be fictional. However, I argue that this is not always the case. The design of an experimental model could still render an in vivo model fictional because fictional elements and processes can be built into these in vivo experimental models. These fictional elements are essential parts of a credentialed fiction because the designs of in vivo experimental models are constrained by imaginability, conceivability, and credit-worthiness. Therefore, despite its fictionality, it is credible for an in vivo experimental model to stand in for the phenomenon of interest.
Mechanism diagrams exhibit visually the organized parts and operations of a biological mechanism. A mechanism diagram can facilitate mechanistic research by providing a mechanistic explanation of the phenomenon of interest. Much research has been focusing on the mechanistic explanation and the explanatory mechanistic models. As a specific type of scientific diagram, a simple mechanism diagram can be explanatory by drawing on the rich explanatory resources of non-depicted background knowledge. The relationship between the visually depicted and the background knowledge is underexplored. It is unclear how the non-depicted background knowledge of a mechanism diagram contributes to providing a better-informed explanation of the phenomenon of interest in biological sciences. With the aim to explore this relationship, I articulate that a mechanism diagram provides a mechanistic explanation by a process called abstraction-by-aggregation. Through visual cues, the unified relevant background knowledge provides an epistemic access to a better-informed explanation.
The needs for health promotion is increasingly important for Malaysian. Government invests in the development to improve health education. Malaysia lacks the development of online solutions to help to maintain the health of the nation through prevention and mass education. This paper addresses important questions about the development of those health promotion websites by considering the motivation of web elements. It seeks to provide information on the barriers to the use and success as a method of health promotion. The empirical work is a perceptions study that aims to identify the barriers of web-based health promotion in the different user characteristics for health promotion purposes. This work is a qualitative research project directed at ascertaining the perceptions of Malaysians concerning the use of health promotion websites. It pertains to those factors which stop the uptake of website use and seeks to discern the views of users on how the health promotion websites may be more engaging. The principal finding is that the ethnicity of the user is mainly relevant in terms of the socio-economic status of the user. Users across all ethnicities respond to the same qualities of websites. The same web elements are motivating to users regardless of the characteristics of the users because the uptake of the Internet and the use of websites for health promotion has been more a phenomenon of the young. The study concludes with some recommendations for the Ministry of Health and the developers of health promotion websites in Malaysia.