A stepping stone to compositionality in chimpanzee communication

A Stepping Stone to Pluripotency

Somatic cells can be reprogrammed into pluripotent stem cells via either expression of transcription factors or addition of small molecule chemicals only. Zhao et al. reveal a unique intermediate state during chemical reprogramming allowing a significant improvement in its efficiency and kinetics.

Imitation as a Stepping Stone to Innovation

By creating a knowledge base that reduces innovation costs, imitation can serve as a stepping stone enabling …rms from lagging countries to undertake innovation. This paper constructs a product cycle model with this feature to determine what forces could cause a lagging country to shift R&D from imitation toward innovation. Increasing resources or subsidizing R&D in the lagging South increases ...

Chimpanzee accumulative stone throwing

The study of the archaeological remains of fossil hominins must rely on reconstructions to elucidate the behaviour that may have resulted in particular stone tools and their accumulation. Comparatively, stone tool use among living primates has illuminated behaviours that are also amenable to archaeological examination, permitting direct observations of the behaviour leading to artefacts and the...

Stepping Stone Detection Analysis

A stepping stone in treating dendritic keratitis

Purpose To report the outcome of self-retained amniotic membrane after debridement in recurrent dendritic keratitis. Observations A 70-year-old female with a recurrent dendritic corneal ulcer received debridement followed by placement of self-retained amniotic membrane. Five days after treatment, the patient experienced a complete resolution of symptoms, marked reduction of inflammation, comp...