A three-stage strategy for conducting an experimental investigation: A recommendation to improve the reproducibility of reported conclusions.

The reproducibility of the results from preclinical research rests on many factors, including the selection of appropriate experimental designs for the individual experiments that constitute the investigation. The design of each of these experiments depends on their purpose within the entire investigation and the information to be gained from conducting them. Here, we explain and justify a three-stage strategy comprising a series of different types of experiment, each with a different purpose and design: a pilot study, a hypothesis-generating experiment and a final hypothesis-confirming experiment.

Aquatic biotas of Sundaland are fragmented but not refugial.

Tropical insular systems have long attracted biologists, stimulating some important controversies in ecology and evolution. Eustatic fluctuations during the Pleistocene have been invoked to explain species dispersal and proliferation in these fragmented systems by controlling the extent of landmasses and their temporary connections. In ancient archipelagos, the Pleistocene represents only a small slice of their history so long-standing configurations might better explain insular diversity patterns.

Cancer and Accelerated Aging Research at the National Institutes of Health, 2013-2023: A Grant Portfolio Analysis.

Background: The purpose of this study was to describe the characteristics of the NIH-funded grant portfolio focused on cancer and accelerated aging.

Methods: Research project grants focused on cancer survivors and aging trajectories that were newly funded during fiscal years 2013 through 2023 were identified by first using a text mining algorithm from the NIH Research, Condition, and Disease Categorization (RCDC) system with cancer survivorship-relevant terms and then a list of aging-related terms that included aging, neurocognition, and physical function. Included grants were double coded to extract study characteristics.

Sensitivity of Methods to Determine Presence of Baylisascaris procyonis Eggs in Raccoon (Procyon lotor) Feces.

Baylisascaris procyonis, a nematode parasite of raccoons (Procyon lotor), has important implications for human health and ecological conservation. Several techniques are available for detecting B. procyonis, and it is important to consider their limitations for the specific question to be answered.