7 Globular clusters and Population II stars are fossil remnants of the first major epoch of star formation in the Milky Way. SIM Lite will determine precise distances to selected Pop II objects to define a reliable distance scale, and establish reliable absolute and relative ages. Those ages set a minimum age for the Universe and map the early formation history of the Milky Way. The resultant a...

We suggest that neither selectionism nor constructivism alone are responsible for learning-based changes in the brain. On the basis of quantitative structural studies of human brain tissue it has been possible to find evidence of both increase and decrease in tissue mass at synaptic and dendritic levels. It would appear that both processes are involved in the course of learning-dependent change...

poetic inspiration is one of the major topics dealt with in literary criticism. the objective of this paper is to show the similarities between human birth and composition of poetry , which as qabbani requires a lot of care to be taken so as to protect the child the against

We give a scheme for loss tolerantly building a linear optical quantum memory which itself is tolerant to qubit loss. We use the encoding recently introduced in [1] and give a method for efficiently achieving this. The entire approach resides within the “one-way” model for quantum computing [2]. Our results suggest that it is possible to build a loss tolerant quantum memory, such that if the re...

In this paper, a three-way microvalve system composed of three independent one-way valve units is presented. Each valve unit has a membrane, which is actuated by external negative air pressure. Intervals between the valve units are smaller than 780 μm, which opens up the possibility of realizing a high-density microvalve array. The small intervals were realized by providing the system with a la...