Hard facts on structure: hot air about mobility

Ramakrishnan about Its Evolution The Ribosome : Some Hard Facts about Its Structure and Hot Air

The ribosome: some hard facts about its structure and hot air about its evolution.

By translating genetically encoded information to synthesize proteins, the ribosome has a central and fundamental role in the molecular biology of the cell. Virtually every molecule made in every cell was made either directly by the ribosome or by enzymes made by the ribosome. Although the ribosome was discovered half a century ago, progress in the field of translation has been revolutionized b...

Hard Facts about Stones: Pulpal Calcifications: A Review

Pulp calcifications stones are discrete calcifications within the pulps of teeth. They are a frequent finding on bitewing and periapical radiographs. Johnson and Bevelander stated that a single tooth may have stones ranging from 1 to 12 or even more, with sizes varying from minute particle to large masses that occlude the pulp space. They often develop in teeth that appear quite normal in other...

Some assumptions and facts about arithmetic facts

In the present review we will deal with the following questions: What are arithmetic facts? How are they related to other cognitive functions? What are characteristic features of fact retrieval performance in healthy adult subjects? Which typical patterns of breakdown can be observed in acalculia? How do current models account for the representation of and access to arithmetic facts?

Facts about Endosalpingiosis

Endosalpingiosis was first described by Sampson in 1930. However, until recently more and more studies show the convincing evidence that it most probably originates from tubal cells. It has a close relationship with the development of serous tumors, especially low-grade serous carcinoma. The lesion does cause symptoms and signs, such as chronic abdominal pain or tumor-like mass, though it is of...