The food varieties which complete what seems like a forever cycle from development to bundling through nanotechnology are known as Nano food, for instance, we devouring some braced that has nanoparticles iron, zinc, omega 3, and coenzymes. Numerous sources normally having safe nanoparticles, get processed in the body at nanoscale. have high dietary benefits less bad cholesterol. They cutting-ed...

Propagation of a species requires periodic cell renewal to avoid clonal senescence. Liu et al. (2010) now describe a new mechanism of cell renewal in budding yeast, in which damaged protein aggregates are transported out of the daughter buds along actin cables to preserve youthfulness.

Revision is a method to deal with non-monotonic processes. It has been used in theory of truth an an answer to semantic paradoxes as the liar, but the idea is universal and resurfaces in many areas of logic and applications of logic. In this survey, we describe the general idea in the framework of pointer semantics and point out that beyond the formal semantics given by Gupta and Belnap, the pr...

According to constructivism, learning takes place by constructing cognitive structures. An experiment was carried out to uncover the mental models of experienced, but not professional, users of a word processor. The study shows that the mental models are superficial, and that bricolage (trial-and-error) is extensively used even though it is not viable for solving nontrivial problems. The conclu...

Any attempt to explain software engineering to a lay audience soon falls back on analogy: building software is like building a bridge, a car, a television set. A large part of the established practice within software engineering is also based on this premise. However, the analogy is false in some important ways, and herein originate many of the problems that have bugged the software industry si...

We describe the design of a knowledge-building environment and examine the roles of knowledge-building portfolios in characterizing and scaffolding collaborative inquiry. Three classes of Grade 9 students in Hong Kong used Knowledge Forum (KF) under several design conditions. Results showed (1) Students working on portfolios guided with knowledge building principles showed more participation, d...