Publications by authors named "J H Underwood"
Article Synopsis
- Oncological patients experience higher risks of infections due to weakened immune systems from diseases or treatments, yet vaccination rates against respiratory pathogens like Streptococcus pneumoniae and influenza are low.
- In a study analyzing 370 oncology patients, only 28.1% were vaccinated against influenza and 32.2% against Streptococcus pneumoniae, with just 7.3% meeting German vaccination recommendations.
- The findings highlight a significant gap in vaccination coverage, particularly among patients with thoracic cancers, indicating the need for improved vaccination strategies for this high-risk group.
Many medical facilities across the United States use ionizing-radiation-producing machines and radioactive materials for diagnostic and therapeutic purposes on a regular basis. While institutions are required to ensure full-term fetal doses are below the regulatory limit, clear guidance on how pre-declaration fetal doses should be estimated is not available. This paper provides a process that can be used to estimate the pre-declaration fetal dose and provides a predictive screening tool for licensees to use to recommend workload adjustments prior to actual fetal dosimetry results that could exceed the institutions derived investigation levels.
View Article and Find Full Text PDFPopulation outbreaks are characterized by irruptive changes in population density and connectivity resulting in rapid demographic and spatial expansion, often at the landscape scale. Outbreaks are common across multiple taxa, many of which inhabit northern ecosystems. Outbreaks of Lepidopteran defoliators in forest ecosystems are a particularly compelling example of this phenomenon, given the massive spatial scales over which these outbreaks can occur, their frequency, and socioeconomic impacts.
View Article and Find Full Text PDFArticle Synopsis
- This study highlights the importance of understanding population structure in harvested fish species to prevent stock depletion, emphasizing the lack of empirical data in this area.
- Researchers analyzed genetic variation in three species of tropical snappers over a large area in north-western Australia, finding similar genetic structures despite differences in their biological traits.
- Results suggest strong genetic connectivity among fish populations, indicating that current management practices may need to adapt, as these species do not adhere to the idea of completely isolated stocks.