Concurrently with the recent, rapid adoption of 3D printing technologies, online sharing of 3D-printable designs is growing equally rapidly, even though it has received far less attention. We study remix relationships on Thingiverse, the dominant online repository and social network for 3D printing. We collected data of designs published over ve years, and we nd that remix ties exhibit both hom...

Some futuristic technologies belong to a distant time that is hard for most to imagine in palpable terms. In the case of 3D printing, however, any citizen can easily grasp the stakes by simply watching a brief video (Global News 2013). The 3D printer, whose ancestry can be traced to factory innovations of the 1980s, provides a method of assembling objects piece by piece: a kind of less precise ...

PURPOSE: Patient-specific heart and valve models have shown promise as training and planning tools for heart surgery, but physically realistic valve models remain elusive. Available proprietary, simulation-focused heart valve models are generic adult mitral valves and do not allow for patient-specific modeling as may be needed for rare diseases such as congenitally abnormal valves. We propose c...

Fused deposition modeling (FDM) 3-Dimensional (3D) printing is becoming an increasingly important technology in the pharmaceutical sciences, since it allows the manufacture of personalized oral dosage forms by deposition of thin layers of material. Here, a filament extruder was used to obtain filaments of polyvinyl alcohol (PVA) containing paracetamol or caffeine appropriate for 3D printing. Th...

3D bioprinting has been invented for more than a decade. A disruptive progress is still lacking for the field to significantly move forward. Recently, the invention of 4D printing technology may point a way and hence the birth of 4D bioprinting. However, 4D bioprinting is not well defined and appear to have a few distinct early forms. In this article, a personal perspective on the early forms o...

The churches of St. Eustache, the Meryemana and St. Daniel are located in the Göreme area in Kapadokya, Turkey. Each of the three structures is composed of a main church with a refuge system. Nowadays these churches have limited access: they cannot be visited by a common tourist. Thus, they are a meaningful sample of rupestrian architecture, containing important mural paintings and suggestive s...