Heterotopic brain tissue within the pharynx is an extremely rare cond ition of infancy and childhood. The most frequent presentation is respiratory distress. There are 11 cases in the literature to date in which c linical and patholog ic aspects are emphasized, all with a paucity of radiologic features [1]. We are reporting a twelfth case, histologically proven, which includes computed tomograp...

We study Vand Λ-patterns which generalize valleys and peaks, as well as increasing and decreasing runs, in permutations. A complete classification of permutations (multi)-avoiding Vand Λ-patterns of length 4 is given. We also establish a connection between restricted permutations and matchings in the coronas of complete graphs.

Although multidrug resistance (MDR) is known to develop through a variety of molecular mechanisms within the tumor cell, many tend to converge toward the alteration of apoptotic signaling. The enzyme glucosylceramide synthase (GCS), responsible for bioactivation of the proapoptotic mediator ceramide to a nonfunctional moiety glucosylceramide, is overexpressed in many MDR tumor types and has bee...

Circuits and an IC implementation of a four-state, block length 16, three-metal one-poly 0.35m CMOS analog turbo decoder with a fully programmable interleaver are presented. The IC was tested at 13.3 Mb/s, has a 1.2 s latency, and consumes 185 mW on a single 3.3-V power supply, resulting in an energy consumption of 13.9 nJ per decoded bit, thus reducing the energy consumption by 70% relative to...

This paper presents a novel fully integrated passive transponder IC with 4.5or 9.25-m reading distance at 500-mW ERP or 4-W EIRP base-station transmit power, respectively, operating in the 868/915-MHz ISM band with an antenna gain less than 0.5 dB. Apart from the printed antenna, there are no external components. The IC is implemented in a 0.5m digital two-poly two-metal digital CMOS technology...

BACKGROUND Autism spectrum disorders (ASDs) are caused by both genetic and environmental factors. Mitochondria act to connect genes and environment by regulating gene-encoded metabolic networks according to changes in the chemistry of the cell and its environment. Mitochondrial ATP and other metabolites are mitokines-signaling molecules made in mitochondria-that undergo regulated release from c...

porous media has interesting features in compared with free flame combustion due to the extended of the lean flammability limits and lower emissions. advanced new generation of internal combustion (ic) engines are expected to have far better emissions levels both gaseous and particulate matter, at the same time having far lower fuel consumption on a wide range of operating condition. these crit...

Poly(amidoamine)s with amino pendant groups were prepared by hydrogen-transfer polyaddition of primary and secondary amines to bis-acrylamines. Dansyl cadaverine (DC) doxorubicin (Dox) were bound to the polymers via a cis-aconityl spacer to give conjugates containing 3 microg of DC per mg of polymer and 28 to 35 microg of Dox per mg of polymer. Release of DC and Dox at physiological and acidic ...

A four-step soft lithographic process based on micro-contact printing of organic monolayers, hyperbranched polymer grafting, and subsequent polymer functionalization results in polymer/n-alkanethiol patterns that direct the growth and migration of mammalian cells. The functional units on these surfaces are three-dimensional cell "corrals" that have walls 52+/-2 nm in height and lateral dimensio...