G-tube contrast check: Transition from fluoroscopy to abdominal radiographs.

Reports of radiographic exam evaluation for G-tube malposition in children are limited. Evaluate effectiveness of a new 2-view abdominal radiograph exam protocol instituted to provide 24/7 coverage at 2 affiliated hospitals and replace the prior fluoroscopic G-tube contrast check exam. G-tube radiographic exams performed between December 2019 and May 2022 at 2 affiliated hospitals were identified and retrospective chart review was performed to delineate exam test yield, accuracy, sensitivity, specificity.

The genomic and phylogenetic characterization of lytic PAK bacteriophages BL4, BL6, and BL7 collected from aquatic samples.

Environmental phages infecting PAK, an opportunistic pathogen, were isolated from playa lakes in Lubbock, TX. We present the genome sequence of three lytic bacteriophages. Upon analysis of sequence similarity, we identified the viruses as a part of an unclassified species within the genus in the class.

Road Traffic Emissions Lead to Much Enhanced New Particle Formation through Increased Growth Rates.

New particle formation (NPF) is a major source of atmospheric aerosol particles, including cloud condensation nuclei (CCN), by number globally. Previous research has highlighted that NPF is less frequent but more intense at roadsides compared to urban background. Here, we closely examine NPF at both background and roadside sites in urban Central Europe.

The genome sequences of lytic bacteriophages BL1, BL2, and BL3 isolated from the environment.

We isolated three environmental phages that infect PAO1, an opportunistic pathogen, from Playa Lakes in Lubbock, TX. We report the genome sequences of isolated lytic bacteriophages BL1, BL2, and BL3. Sequence similarity analysis revealed that the viruses belonged to an unclassified species in the genus within .

Accounting for super-, plateau- and mesa-rate burning by lead and copper-based ballistic modifiers in double-base propellants: a computational study.

We present a first-principles computational study to understand the action of lead and copper-based ballistic modifiers in the combustion of double-base propellants (DBPs). We show that lead oxide clusters are easily broken down upon addition of small amounts of carbon and the resulting graphitic matrix, dispersed with weakly bound and exposed Pb sites, acts as a Lewis acid to bind small molecule Lewis bases such as NO and CHO that form in the combustion flame. This accounts for super-rate burning, where the fuel burn rate is enhanced.