The mechanisms of progression from Barrett’s esophagus (BE) to esophageal adenocarcinoma (EA) are not known. Cycloxygenase2 (COX-2)-derived prostaglandin E2 (PGE2) has been shown to be important in esophageal tumorigenesis.We have shown that COX2 mediates acid-induced PGE2 production. The prostaglandin E synthase (PGES) responsible for acid-induced PGE2 production in BE, however, is not known. ...

CHEST, 78: 6, DECEMBER, 1980 than in the group in which Qsp did not increase (13.3 ± 1.2 vs 27.5 ± 3.1 percent, mean ± SE, p < .001). Qsp with 100 percent oxygen may increase as a result of absorption atelectasis and redistribution of regional pulmonary blood flow to poorly or nonventilated lung areas. However, a decline in Qsp with 100 percent oxygen may result from a decrease in “shunt like” ...

Duplication of some floral regulatory genes has occurred repeatedly in angiosperms, whereas others are thought to be single-copy in most lineages. We selected three genes that interact in a pathway regulating floral development conserved among higher tricolpates (LFY/FLO, UFO/FIM, and AP3/DEF) and screened for copy number among families of Lamiales that are closely related to the model species ...

A computational investigation of proximal humeral fracture fixation has been conducted. Four devices were selected for the study; a locking plate, intramedullary nail (IM Nail), K-wires and a Bilboquet device. A 3D model of a humerus was created using a process of thresholding based on the grayscale values of a CT scan of an intact humerus. An idealised three part fracture was created in additi...

Salmonella typhimurium definitive type 104 (DT104) is a virulent pathogen for humans and animals with many strains having multiple drug resistance characteristics. The organism typically carries resistance to ampicillin, chloramphenicol, florfenicol, streptomycin, sulfonamides, and tetracycline (ACSSuT-resistant). A multiplex PCR method was developed to simultaneously amplify four genes, florfe...

The mechanisms of progression from Barrett's esophagus (BE) to esophageal adenocarcinoma (EA) are not known. Cycloxygenase-2 (COX-2)-derived prostaglandin E₂ (PGE₂) has been shown to be important in esophageal tumorigenesis. We have shown that COX-2 mediates acid-induced PGE₂ production. The prostaglandin E synthase (PGES) responsible for acid-induced PGE2 production in BE, however, is not know...

We revisit the proximity effect produced by QSOs at redshifts 2.1 − 3.3 applying the FLO approach (Saitta et al. 2007) to a sample of ∼ 6300 Lyα lines fitted in 21 high resolution, high signal-to-noise spectra. This new technique allows to recover the hydrogen density field from the H i column densities of the lines in the Lyα forest, on the basis of simple assumptions on the physical state of ...

Cell aggregation in unicellular organisms, induced by either cell non-sexual adhesion to yield flocs and biofilm, or pheromone-driving sexual conjugation is of great significance in cellular stress response, medicine, and brewing industries. Most current literatures have focused on one form of cell aggregation termed flocculation and its major molecular determinants, the flocculation (FLO) fami...

In this work a novel Multi-Sensor Data Fusion (MSDF) architecture with fault tolerant characteristics is proposed. This MSDF architecture is based on Kalman filtering and fuzzy logic techniques. First, the measurement coming from each sensor is fed to a fuzzy–adapted Kalman filter (FKF). The adaptation is in the sense of adjusting the measurement noise covariance matrix R using a fuzzy inferenc...

While classifications are heavily used to categorize web content, the evolution of the web foresees a more formal structure – ontology which can serve this purpose. Ontologies are core artifacts of the Semantic Web which enable machines to use inference rules to conduct automated reasoning on data. Lightweight ontologies bridge the gap between classifications and ontologies. A lightweight ontol...