J. D. Williams

Spectrograms of kent sounds from seven Ivory-billed Woodpecker expeditions show 587 Hertz as a pattern

The paper analyzes audio evidence from seven Ivory-billed Woodpecker expeditions and identifies a 587 Hz pattern in kent sounds, suggesting the species may still exist.

Metabolite Fingerprinting for Phenotypic Screening by Infrared Matrix-Assisted Laser Desorption Electrospray Ionization Mass Spectrometry

This paper demonstrates a high-throughput phenotypic screening method using IR-MALDESI mass spectrometry to identify glutaminase inhibitors and distinguish them from nuisance compounds.

The Ivory-billed Woodpecker: audio evidence and analyses from Southeast United States 2022

The paper was withdrawn due to data ownership concerns and disagreements with conclusions.

A New Platform for Label-Free, Proximal Cellular Pharmacodynamic Assays: Identification of Glutaminase Inhibitors Using Infrared Matrix-Assisted Laser Desorption Electrospray Ionization Mass Spectrometry

This paper introduces a high-throughput label-free cellular pharmacodynamic assay using IR-MALDESI to identify glutaminase inhibitors and confirm hits with mass spectrometry-based assays.

Genome-wide analysis of heat stress-stimulated transposon mobility in the human fungal pathogen Cryptococcus deneoformans

The paper investigates heat stress-induced transposon mobility in Cryptococcus deneoformans using whole-genome sequencing, finding increased retroelement mobilization at 37°C compared to 30°C.

High Throughput Intact Protein Analysis for Drug Discovery Using Infrared Matrix-Assisted Laser Desorption Electrospray Ionization Mass Spectrometry

This paper demonstrates the use of IR-MALDESI-MS for high throughput intact protein analysis in drug discovery, achieving faster sample rates than traditional ESI-MS methods.

Ultrahigh-Throughput Ambient MS: Direct Analysis at 22 Samples per Second by Infrared Matrix-Assisted Laser Desorption Electrospray Ionization Mass Spectrometry

This paper develops an ultrahigh-throughput IR-MALDESI mass spectrometry method capable of analyzing 22 samples per second with low carryover and high repeatability.

Transposon mobilization in the human fungal pathogen Cryptococcus deneoformans is mutagenic during infection and promotes drug resistance in vitro

This study shows that transposon mobilization in Cryptococcus deneoformans increases mutagenesis and drug resistance during infection and in vitro.

Second Harmonic Generation Spectroscopy of Membrane Probe Dynamics in Gram-Positive Bacteria

The paper uses SHG and two-photon fluorescence to study membrane probe dynamics in two gram-positive bacteria, showing SHG's ability to detect molecular movement and ordering, with differences observed between species.