Positioning of the cell division plane is critically important for tissue morphogenesis and architecture. 1 it is therefore not surprising that mitotic spindle orientation must be tightly regulated in living tissues, a phenomenon that is also observed in cells cultured in vitro. Because of the amenability of cultured cells to molecular and physical manipulation, many investigators have used suc...

Navigation is a major challenge for autonomous, mobile robots. The problem can basically be divided into positioning and path planning. In this paper we present an approach which we call grid-based navigation. Though we also propose a scheme for path finding, we focus on positioning. Our approach uses minimal environmental infrastructure and only two light sensors on the mobile device itself. S...

We describe the effect of a particular form of “noise” in benchmarking. We investigate the source of anomalous measurement data in a series of optimization strategies that attempt to improve data cache performance in the garbage collector of a Java virtual machine. The results of our experiments can be explained in terms of the difference in code positioning, and hence instruction and data cach...

Introduction: The use of panoramic radiography has shown a remarkable expansion over the past 20 years. Accurate positioning and preparation of patients is needed to avoid image distortion. The aim of this study was to evaluate the common errors on panoramic radiographs taken in the radiology department of Rasht dental school. Materials and Methods: The study sample included 390 digital panoram...

Optimal Positioning of Middle Schools within the City of Dehdasht through a Combination of Boolean Logic and FAHP M.A. Firoozi, Ph.D. P. Rahmaani N. Hosseini Shahpariyaan M. Fereydoonnejaad Optimal positioning of schools is of much interest to planners because the rapid increase in population and structural changes within the cities could lead to distribution problems if not fo...

Treacher Collins syndrome (TCS) is a genetic disease that alters the development of bones and other tissues in the face, and presents variable expressivity. At least three genes TCOF1, POLR1D, and POLR1C were recognized to be at the origin of this syndrome which may be inherited through either an autosomal dominant or autosomal recessive pattern. TCS changes can be divided into otological, opht...

Behaviors emerge, in part, from the interplay of infant abilities and caregiver-infant interactions. Cross-cultural and developmental studies suggest caregiver handling and positioning influence infant development. In this prospective, longitudinal study, the effects of 3 weeks of enhanced handling and positioning experiences provided to 14 infants versus control experiences provided to 14 infa...

Ambiguity resolution is essential for precise GPS diffe rential positioning. At the IAG General Meeting in Beijing 1993 [1], a new method for fast integer ambiguity estimation has been introduced. Some aspects of the theory have been reviewed at the DSNS 94 conference [2]. The LAMBDA-method, which stands for Least-squares AMBiguity Decorrelation Adj ustment, first decorrelates the ambiguities a...