Most new parents think of diapers as a smelly, expensive, and unavoidable necessity. The good news is that it’s possible—even practical—to raise your kids without diapers. In Diaper Free!, Ingrid Bauer shows how you can:* Save thousands of dollars* Reduce landfill waste (single-use disposable diapers are responsible for one third of the non- biodegradable waste in landfills)* Avoid diaper rash* Use the “Four Tools for Diaper Freedom” to enhance your re...

Memory is the brain's ability to keep track of past experience and make it reappear in consciousness. Memory is a complex process that involves three phases: learning, information storage, return (evocation and recognition). These phenomena are not precise and controlled by a specialized region of the brain, but develop together at the nerve centers polyvalent (hippocampus, hypothalamus, and mammillary bodies) and nerve fibers that connect them. In general, we distinguish the short-term me...

At the beginning of June 1961, the tensions of the Cold War were supposed to abate as both sides sought a resolution. The two most important men in the world, John F. Kennedy and Nikita Khrushchev, met for a summit in Vienna. Yet the high hopes were disappointed. Within months the Cold War had become very hot: Khrushchev built the Berlin Wall and a year later he sent missiles to Cuba to threaten the United States directly.Despite the fact that the Vienna Summit yielded barely any t...

This collection of surveys and research articles explores a fascinating class of varieties: Beauville surfaces. It is the first time that these objects are discussed from the points of view of algebraic geometry as well as group theory. The book also includes various open problems and conjectures related to these surfaces.Beauville surfaces are a class of rigid regular surfaces of general type, which can be described in a purely algebraic combinatoric way. They play an important ro...