Science's fascination with bone and its repair processes span for thousands of years since the ancient Greek Hippocrates, the father of Medicine, made the key discovery that bone heals without scarring. Through the centuries, several lucid investigators perceived that the extracellular matrix of bone must be a reservoir of differentiating and morphogenetic factors ultimately responsible for its...

The egg shell of Huffmanela huffmani Moravec, 1987 forms three main layers: an outer vitelline layer, a middle chitinous layer, and an inner lipid layer. The vitelline layer, forming the superficial projections of the egg shell, comprises two parts: an outer electron-dense, and an inner electron-lucid part. The chitinous layer is differentiated into three parts: an outer homogenous electron-den...

We summarize the interaction between the theory behind intensional programming, as seen in Lucid; and intensional versioning, as seen in Lemur, Intensional HTML, ISE, VMAKE, etc. These two concepts can be seen to be duals of each other, and they rely on dual notions of store, the warehouse for caching values, and the catalog for providing definitions. Catalogs contain intensional objects, which...

new line, and a line that is of great interest. The section dealing with the 'past of the heart is all too brief but is none the less interesting. As the author says, the memories of our great men in the past deserve to be kept green, and this the author has attempted to do by tracing the history of the evolution of cardiology from the period preceding Corvisart to the epoch-making researches o...