Ocean acidification (OA) is expected to negatively affect coral reefs, however little is known about how OA will change the coral-algal symbiosis on which reefs ultimately depend. This study investigated whether there would be differences in coral Symbiodinium types in response to OA, potentially improving coral performance. We used denaturing gradient gel electrophoresis (DGGE) of the internal...

We investigated the effect of NC-1300-O-3 on gastric mucus secretion and prostaglandin release into the gastric lumen in rats. NC-1300-O-3 following single or repeated administration for up to 4 weeks significantly increased the hexose content in the gastric lumen at 10 to 100 mg/kg, p.o. Omeprazole and cimetidine at doses that strongly inhibited gastric acid secretion had no effect on the hexo...

The Tres Marias carbonate-hosted Zn-Ge deposit in Chihuahua, Mexico contains willemite [Zn2SiO4] with unusually high concentrations of minor and trace elements (e.g., Pb, Ge, As, P, V); Pb concentrations are as high as 2 wt %, and Ge may reach 4000 ppm (average 900 ppm). Electron microprobe analyses and synchrotron X-ray fluorescence maps show that Zn and Ge, as well as Zn and Pb are negatively...

GUSTAVO OLIVEIRA: Comparison among ACP, Fluoride and a combination of ACP/ Fluoride and their ability to remineralize white spot lesions in vitro (Under the direction of Timothy Wright) This study evaluated the ability of a casein-phosphopeptide amorphous-calcium-phosphate paste (CPP-ACP, MI Paste™), a 1.1% NaF toothpaste containing 5000 ppm of fluoride (ControlRX™) and a CPP-ACP paste with 900...

A significant cost in PPM data compression (and often the major cost) is the provision and efficient coding of escapes while building contexts. This paper presents some recent work on eliminating escapes in PPM compression, using bit-wise compression with binary contexts. It shows that PPM without escapes can achieve averages of 2.5 bits per character on the Calgary Corpus and 2.2 bpc on the Ca...

When most people think of detecting single-photons, photomultiplier tubes probably spring to their mind. Indeed, for a long time these were the detectors of choice in ultrasensitive detection and spectroscopy. Today, however other types of detectors allow to reach a single-photon sensitivity. Special semiconductor devices called singlephoton avalanche diodes (SPAD) have been developed, optimise...

This paper gives the first correlation bounds under product distributions (including the uniform distribution) against the class mNC of poly(n)-size O(log n)-depth monotone circuits. Our main theorem, proved using the pathset complexity framework recently introduced in [56], shows that the average-case k-CYCLE problem (on Erdős-Rényi random graphs with an appropriate edge density) is 12 + 1 pol...

The present study has investigated a correlation between the kinetics of polychlorinated biphenyl (PCB) dechlorination and the growth of dechlorinating microbial populations. Microorganisms were eluted from Aroclor 1248-contaminated St. Lawrence River (NY, USA) sediments and inoculated into clean sediments spiked with Aroclor 1248 at 10 concentrations ranging from 0 to 3.12 micromol/g sediment ...

Online breath analysis is an attractive approach to track exhaled compounds without sample preparation. Current commercially available real-time breath analysis platforms require the purchase of a full mass spectrometer. Here we present an ion source compatible with virtually any preexisting atmospheric pressure ionization mass spectrometer that allows real-time analysis of breath. We illustrat...