Code Division Multiple Access (CDMA) has gained widespread international acceptance by cellular radio system operators as an upgrade that will dramatically increase both their system capacity and the service quality. CDMA is a "spread spectrum" technology, allowing many users to occupy the same time and frequency allocations in a given band/space. As its name implies, CDMA (Code Division Multip...

If D is a division algebra with center a number field K and with an involution of the second kind, it is unknown if the group SU(1, D)/[U(1, D), U(1, D)] is trivial. We show that, by contrast, if K is a function field in one variable over a number field, and if D is an algebra with center K and with an involution of the second kind, the group SU(1, D)/[U(1, D), U(1, D)] can be infinite in gener...

This paper is concerned with flexible queries addressed to regular relational databases whose main goal is to overcome some of the limitations of Boolean queries. Introducing preferences inside selection conditions allows for the discrimination between more or less satisfactory answers according to the preferences appearing in the query. The operation known as the relational division whose inte...

Charles A. Morgan III*, Gary Hazlett, Anthony Doran, Stephan Garrett, Gary Hoyt, Paul Thomas, Madelon Baranoski, Steven M. Southwick Associate Professor of Psychiatry, Department of Psychiatry, Yale University School of Medicine, Connecticut Mental Health Center, Law and Psychiatry Division, 34 Park Street, New Haven, CT 06519-1187, USA Major, JFK Special Warfare Training Center and School, Uni...

IN THE CURRENT ANATOMIC STUDY, SPECIAL ATTENTION WAS GIVEN TO THE RELATIONSHIP OF THE POSTERIOR DIVISION OF THE OBTURATOR NERVE TO SURROUNDING STRUCTURES: the obturator canal and the fibromuscular and vascular structures of the medial thigh region. These intimate relationships may, in certain conditions, constitute critical sites of entrapment of the posterior division of the obturator nerve an...

We present and study a model for the nonequilibrium statistical mechanics of protein distributions in a proliferating cell population. Our model describes how the total protein variation is shaped by two processes: variation in protein production internal to the cells and variation in division and inheritance at the population level. It enables us to assess the contribution of each of these com...

| The problem considered is of estimating propagation delays of the transmitted signals in a direct sequence code division multiple access (DS-CDMA) system operating over fading channels. Special attention is given to the near-far problem. An estimator based on subspace identiication techniques is proposed. The Cram er-Rao bound is presented and used as a benchmark when evaluating the performan...

PAPER Special Section on Evolution of Microwave and Millimeter-Wave Photonics Technology Proposal of Two-Dimensional Self-Matching Receiver Using Chaotic Spatial Synchronization for Free Space Optics Communication System and Its Application to Image Transmission and Code Division Multiplexing Shinya TAKEDA†a), Student Member, Takeshi HIGASHINO†, Katsutoshi TSUKAMOTO†, Members, and Shozo KOMAKI†...

These tables report the results of analyses conducted by staff of the Special Population Surveys Branch of the Division of Health Interview Statistics, National Center for Health Statistics. All estimates are subject to sampling variability, as well as survey design flaws, respondent classification and reporting errors, and data processing mistakes.

Regular segregation of homologous chromosomes during meiotic divisions is essential for the generation of viable progeny. In recombination-proficient organisms, chromosome disjunction at meiosis I generally occurs by chiasma formation between the homologs (chiasmate meiosis). We have studied meiotic stages in living rec8 and rec7 mutant cells of fission yeast, with special attention to prophase...