Josh Collins

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BACKGROUND & AIMS Alterations in the microbial composition of the gastrointestinal tract (dysbiosis) are believed to contribute to inflammatory and functional bowel disorders and psychiatric comorbidities. We examined whether the intestinal microbiota affects behavior and brain biochemistry in mice. METHODS Specific pathogen-free (SPF) BALB/c mice, with(More)
Optical oxygen sensors have many promising qualities but rely on excitation by violet or blue wavelengths that suffer from high levels of scattering and absorption in biological tissues. Here we demonstrate an alternative method using 980nm near-infrared light to initially stimulate ceramic upconverting nanoparticles (UCNPs) contained within a novel form,(More)
A caprylate esterase chromogenic test, which was considered to indicate positivity in 5 minutes if a bright colour appeared on the filter paper inoculum site to which one colony had been applied, was used to test 534Salmonella, 535 other bacteria capable of growth on desoxycholatecitrate agar (DCA), and 517 non-lactose fermenting colonies from stool(More)
Tire Pressure Monitoring Systems (TPMS) offer real-time diagnostics of the status of a vehicle's tires via a wireless communications link back to the vehicle. These links, which provide data, mandated by the NHTSA, generally possess low security/low privacy, leading to a demonstrated potential for spoofing attacks or tracking a person/vehicle through the(More)
In this paper, we report a novel, high productivity and low cost integration scheme for copper interconnects in memory devices using a tungsten nitride barrier and a tungsten via. Key integration challenges overcome in this work include zero sputter Cu2O reduction, damage-free conformal WN barrier deposition, void-free W fill, and W CMP with minimal(More)
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