Conventional digital clock distribution interconnection causes a severe power consumption problem for GHz clock distribution because of transmission line losses, and it exhibits difficult signal integrity problems due to clock skew, clock jitter and signal reflection. To overcome these conventional digital clock distribution limitations, optical clock distribution techniques, based on guided-wa...

Mining frequent patterns from a large database often involves construction of intermediate structures such as trees for the purpose of efficiency. Various researchers have proposed many types of trees such as CATS-tree and Can-tree. However, these tree-based mining algorithms require a large amount of computing time during the tree construction phase or need generation of extra trees. In this p...

background: the mammalian ovary is controlled by a number of biological rhythms, which regulate the recruitment and release of mature oocytes. the main objective of this study was to investigate the role of cellular clock proteins during follicle maturation in the mouse estrous ovary. methods: immunohistochemical (ihc) studies were performed on ovaries from 50 estrous staged mice culled at two ...

Title: Can the Salecker–Wigner clock be microscopic? Author: Andor Frenkel (Institute for Particle and Nuclear Physics, Bu-dapest, Hungary) Half a century ago H. Salecker and E. P. Wigner examined the functioning of a quantum clock of very simple construction [1]. They raised the question whether such a clock can be microscopic or not, but no clear-cut answer has been reached in [1] (see also [...

The clock drawing test has been routinely administered by many neuropsychologists as part of their testing battery with the adult population. Our study investigated the development of clock face drawing in normal children ages 6 to 12 years. Conceptualization of time and construction of the clock face were assessed by an adapted scoring system developed as part of the investigation. As a group,...

Global interconnect design for threedimensional integrated circuits is a crucial task. Despite the importance of this task, limited results related to global issues have been presented. Challenges in reliably distributing power, ground, and the clock signal within a multi-plane integrated system are discussed in this paper. The design of two 3-D test circuits addressing these issues is describe...