On Propertius III. XV. 31–34

Op-brai120137 3134..3143

Temporal lobe seizures have a significant chance to induce impairment of normal brain functions. Even after the termination of ictal discharges, during the post-ictal period, loss of consciousness, decreased responsiveness or other cognitive dysfunctions can persist. Previous studies have found various anatomical and functional abnormalities accompanying temporal lobe seizures, including an abn...

Dev110395 3134..3142

A crucial event in animal development is the specification of primordial germ cells (PGCs), which become the stem cells that create sperm and eggs. How PGCs are created provides a valuable paradigm for understanding stem cells in general. We find that the PGCs of the sea urchin Strongylocentrotus purpuratus exhibit broad transcriptional repression, yet enrichment for a set of inherited mRNAs. E...

Xv Xvi

-Monetary policy operates in a different environment than it did a decade ago. Financial market innovations have eroded the distinctions among monetary assets, making the definition of money increasingly arbitrary. Deregulation of interest rates and banking activity is changing the behavior of the monetary aggregates, as banks pay interest on monetary assets and nonbanks offer monetary-like ass...

XV. Geriatrics

Xv. Neurophysiology*

Resting squid nerve membrane actively extrudes Na+ against a large concentration gradient, while another cation, K + , is concentrated passively within the cell by the Donnan equilibrium. During the passage of an impulse, large transient current flows across the membrane; some K + leaves, some Na + enters, but which ions carry the current at which instant, and how it is turned on and off cannot...